Unicore has introduced the UM981 series, a high-precision positioning module that integrates RTK and inertial navigation system (INS) technologies. The solution leverages GNSS and INS navigation to cater to applications in precision agriculture, surveying and mapping.
The module is compatible with all major navigation systems and frequencies, tracking signals from multiple systems simultaneously for enhanced performance even in challenging environments. Additionally, the UM981 series supports open Precise Point Positioning (PPP) services such as BDS-3 PPP-B2b, Galileo E6 HAS and QZSS L6 MADOCA-PPP, achieving 10 cm positioning accuracy with a convergence time of under 10 minutes, according to Unicore.
The UM981 series processes high-frequency GNSS and IMU data streams efficiently, offering RTCM data transmission at up to 20 Hz, single-point positioning and RTK at up to 50 Hz and integrated navigation data and IMU raw data at up to 100 Hz. These capabilities make it suitable for dynamic scenarios requiring high precision.
In precision agriculture, the UM981 module simplifies machinery auto-steering systems by enabling single-antenna positioning and attitude determination through advanced MEMS technology. At speeds above 1 km/h, it achieves heading accuracy better than 0.3° and roll/pitch measurements better than 0.2°, with accuracy improving as speed increases. The module supports CAN Bus communication and can be customized to work with the ISOBUS Protocol, eliminating the need for switching between interfaces during serial port communication.
For surveying and mapping applications, the UM981S variant delivers high-accuracy positioning and tilt measurement using GNSS and INS fusion algorithms. It eliminates traditional shake-to-start requirements with a walk-and-go feature that allows users to initialize tilt measurement simply by walking with the measurement pole. The module provides 2.5 cm accuracy within a 30° tilt range and supports measurements at larger angles up to 120°, making it suitable for complex environments such as building corners or areas under tree canopies.
Read a roundup of recent products in the GNSS and inertial positioning industry from the March 2025 issue of GPS World magazine.
Surveying and Mapping
Photo: Eos Positioning Systems
New Eco-Friendly Carrying Case For Eos Positioning Systems’ receivers
The Skadi Gold, Skadi 300 and Skadi 200 GNSS receivers will now be shipped in a field-rugged carrying case made entirely from recycled materials. The case is designed to meet the demands of professionals who utilize GNSS technology in challenging environments. Its construction incorporates durable, eco-friendly materials that can withstand various field conditions, from remote wilderness areas to urban construction sites.
A key feature is its composition of 100% post-consumer recycled resin, which significantly reduces waste and promotes environmental sustainability, according to the company. It is specifically engineered to be shock-resistant and weatherproof.The case is provided as a standard inclusion with every purchase of the Skadi Gold, Skadi 300 or Skadi 200 GNSS receivers at no additional cost.
Multibeam Sonar Designed for bathymetric surveying
The Gemini 1200id is built on the same robust platform as the Gemini 720is multibeam sonar. The device features a 120° horizontal field of view, operating at both 720 kHz and 1,200 kHz acoustic frequencies.
The Gemini 1200id incorporates advanced noise reduction technology to significantly improve the attenuation of waterborne electrical noise to enhance imaging performance. An integrated speed-of-sound sensor ensures high positional accuracy of displayed targets, while CHIRP processing technology enhances target separation over extended ranges.
Compatibility with Tritech’s Genesis software package allows users to control multiple Tritech products from a single interface to streamline operations. The company has also made software development kits available for Windows and Linux operating systems to integrate into various platforms. The sonar’s design includes a custom-developed analog front-end solution with fully differential receiver channels, making it ideal for longer-range applications.
HiPer XRa is a GNSS receiver for surveying, mapping and construction applications. It can benefit a wide variety of users, including construction professionals, surveyors, geographic information systems (GIS) professionals, archeologists, engineering firms and more. The HiPer XR supports GPS, GLONASS, Galileo, BeiDou, IRNSS, QZSS and SBAS.
The new receiver has advanced Topcon Integrated Leveling Technology (TILT) compensation, featuring a calibration-free and magnetic interference-immune integrated IMU that provides up to 60° of tilt for precision measurements in challenging positions. It has signal integrity protection, anti-jamming and anti-spoofing capabilities. Through the myTopcon NOW! website, users can access online training materials, firmware updates and additional software resources.
Airborne Lidar System Ideal for coastline and river surveying
CoastalMapper is an airborne bathymetric lidar system for coastline and river surveying. The CoastalMapper can survey coastlines and rivers 250% faster than previous sensor models, according to Leica Geosystems.
It is suitable for various mapping applications, from assessing infrastructure resilience to monitoring river floods and conducting environmental investigations.
It features a high-performance bathymetric lidar module, a Leica TerrainMapper-3 topographic lidar and an imaging sensor, integrated into a compact and lightweight sensor head. This allows the CoastalMapper to capture up to 1 million bathymetric data points and 2 million topographic data points per second while providing high-resolution imagery with a 5-cm ground sampling distance at typical flying heights.
It integrates with Leica Geosystems’ airborne mapping workflows and offers cluster processing capabilities, allowing users to analyze large datasets and reduce the time from data collection to final deliverables. These outputs can include classified point clouds, digital terrain and surface models, and various imaging products.
Surveying Kit Streamlines base station and checkpoint setup
WingtraGROUND, a comprehensive survey kit, streamlines base station and checkpoint setup for on-site post-processing kinematic surveys with the WingtraONE Gen II, a vertical takeoff and landing UAV. The kit combines receivers, checkpoints and tools into a single, portable workflow.
The system integrates hardware components with a Wingtra tablet interface, which can help surveyors confirm correct receiver placement and avoid common errors associated with improper base station setup and inaccurate coordinates.
Wingtra receivers, equipped with Emlid Reach RS3 technology, provide accuracy within 2 cm, meeting high standards for aerial data validation. These receivers can also function independently for terrestrial surveys in real-time kinematic mode, including point collection and stakeout for various applications.
Galileo HAS-Enabled Receiver Offers positioning capabilities with 20 cm accuracy
The Geode GNS3H supports Galileo High Accuracy Service (HAS). It offers positioning capabilities with 20 cm accuracy worldwide without requiring additional infrastructure or subscriptions.
It is built to withstand tough conditions, making it ideal for demanding fieldwork. The device offers various accessories, including the Geode Grip, which combines the Geode with a data collection device of choice into a single handheld solution. A backpack strap kit and survey pole are also available to enhance mobility and flexibility in the field. The GNS3H can be used for surveying, agriculture, construction, forestry, mining and archaeology.
Expanded Mapping Portfolio 3D mapping technologies and more
Topcon Positioning Systems has become an authorized distributor of Pix4D’s photogrammetry software portfolio.
The partnership aims to enhance reality capture solutions across various industries, including surveying, mapping, utilities infrastructure, public safety, forensics, and architecture, engineering and construction.
The agreement streamlines the procurement process for end users by allowing them to access Pix4D’s advanced photogrammetry software solutions through Topcon’s global distribution network.
The GNSS real-time kinematic (RTK) 5 Click — a compact add-on board for high-precision positioning and navigation demands — features the UM980, an all-constellation multifrequency RTK positioning module from Unicore, with the advanced NebulasIV SoC for enhanced performance.
It supports Swift Navigation’s Skylark precise positioning service, multiple GNSS constellations and RTK positioning for centimeter-level accuracy. The board also features JamShield technology for robust performance in challenging environments, USB connectivity for easy configuration and visual status indicators for module status and GNSS signal reception.
It can be used for a variety of applications, including surveying and mapping, precision agriculture, UAVs, autonomous robots and autonomous driving.
Multi-Band GNSS Antenna Can operate in urban environments
Levity Series’ AHP24510 (L1/L2/L-Band) and AHP54510 (L1/L5/L-Band) directional patch antennas are designed to receive signals from GPS, Galileo, GLONASS and BeiDou satellite constellations.
These antennas offer faster and more accurate signal acquisition and lock, specifically in urban environments. The L-Band capability allows compatibility with high-precision GNSS correction services. The multi-band antennas offer integral redundancy to minimize satellite security blind spots and reduce energy consumption due to faster acquisition, requiring less system uptime to save power.
The Levity Series active antennas feature a 45 mm x 45 mm x 10 mm wide-band, dual-stacked patch design with a dual-feed, low noise amplifier, providing 28 dB to 29 dB gain and filtering. They operate with a maximum antenna VSWR of 1-to-1 from 1,207 MHz to 1,603 MHz, and the passive antenna efficiency ranges from 39.93% to 68.51% in the L1 band. These antennas use right-hand circular polarization to mitigate multi-path interference.
The Levity Series includes other multi-band products for high-precision applications, such as the HP24510A and HP54510A stacked-patch passive components, and the TFM.120A surface-mount front-end module, which covers the full multi-band GNSS spectrum including L-band. These antennas are suitable for various applications, including wearables, transportation, robotics, precision agriculture and autonomous vehicles.
The M9PLUS-HCT-A-SMA is an active multi-frequency GNSS antenna designed for high-accuracy applications. It supports L1/L2/L5 GPS, Galileo, Beidou and GLONASS bands, as well as L-band correction services. The antenna utilizes Maxtena’s proprietary Helicore technology, which offers advanced pattern control, polarization purity and efficiency in a compact form factor.
It integrates a pre-filter specifically engineered to mitigate LTE interference. This is crucial for maintaining signal integrity in environments with dense mobile communication networks, where LTE signals can overlap with GNSS frequencies. The pre-filter can effectively block out-of-band LTE signals, reducing intermodulation risks and ensuring clear GNSS signal reception.
The M9PLUS-HCT-A-SMA is built with rugged, IP67 automotive-grade components and includes an integrated SMA connector. It also features an O-ring for enhanced environmental sealing. Weighing only 24 grams, the antenna is ground plane-independent, making it versatile for various installations. It is particularly well-suited for GIS and RTK applications where high accuracy and reliability are crucial.
The MostaTech G321M is a three-axis fiber optic gyroscope (FOG) that offers high-precision navigation and orientation measurement capabilities. This advanced sensor features a data rate of 8 kHz.
Key features of the G321M include an input range of 400° per second, a bias RMS of 1° per hour and an angular random walk of 0.025 °/√h. Additionally, it has a power consumption of 2 W and an initialization time of 1 second. The G321M is designed with a compact form factor, making it suitable for various applications where size and weight are critical factors.
It is ideal for UAVs, robotics, borehole surveys, image stabilization, gimbal stabilization and underwater vehicles.
High-Precision Lidar Designed for precision applications
The TV1 Lite and the TV1 UAV systems are designed for various precision applications, such as mapping and data collection.
The TV1 Lite features TrueNav technology, a Hesai 32-channel laser scanner and a FLIR 5MP global shutter camera with a 90° field of view. It also includes one year of TV1 Lite Annual Processing with support and maintenance.
TV1 offers customization options, allowing users to choose from 26 MP, 45 MP or 61 MP cameras and various Trajectory Correction Service options.
Flight Control System With autopilot functionality
The Prism Supervisor software combines UAV autopilot flight control systems with AI-based observations processed in real time, aiming to enhance UAV operations.
The system provides a programming framework and software development kit for users to create custom mission scenarios. During flight, Prism Supervisor can adapt its autopilot functionality in real time, generating mission segments and flight plans as needed.
The software features a user-friendly graphic interface for mission planning, real-time visualization and execution. It supports Windows, Linux, macOS, iOS and Android.
Remote ID Receiver Enhances airspace awareness and UAV safety
RIDER is designed to enhance situational awareness by providing real-time detection of UAV activity in sensitive areas. It also seeks to provide a clear visibility of surrounding UAV operations to help avoid potential collisions and ensure safer flight experiences.
The device features a built-in industrial chip SIM that provides global coverage through LTE-M and NB-IoT, ensuring connectivity in various environments.
It operates effectively within a temperature range of -20 °C to +60 °C and is rated IP54 for dust and water resistance. The device complies with ASTM F3411-22A and ASD-STAN EN 4709-002 standards, making it suitable for regulatory environments.
The RIDER can detect signals from up to 5 km with its default antennas and up to 10 km when using an optional high-performance antenna. It is equipped with an internal cellular and Bluetooth antenna, along with an integrated GNSS antenna that provides precise positioning and timestamping capabilities. It supports multiple GNSS frequencies and utilizes Bluetooth and Wi-Fi technologies for Remote ID communications.
Streamlined BVLOS Operations For a variety of applications
The Sentaero 6 UAV is designed for advanced over-the-horizon operations beyond visual line of sight (OTH-BVLOS). It features built-in AI and machine learning capabilities for real-time data processing. The system can be used for surveying, mapping, inspection, asset monitoring and more.
Engineered to streamline operations, the Sentaero 6 offers more accurate and up-to-date intelligence on assets. Its onboard computer can processes data mid-flight.
Future developments will include swarm operations, enabling one human to control multiple UAVs simultaneously; fully remote operations and higher safety standards, such as a parachute for urban missions, according to Censys Technologies.
SBG Systems has significantly updated its Ellipse series sensors, incorporating the latest World Magnetic Model (WMM) to enhance accuracy and reliability in navigation applications. This upgrade is available for all Ellipse sensors, including first-generation models.
Designed for unmanned systems such as UAVs, UGVs and marine platforms, the Ellipse series comprises compact, high-precision inertial sensors. These devices feature built-in three-axis magnetometers that measure Earth’s magnetic field, crucial for accurate heading and positioning data.
Updated every five years, the WMM is a globally recognized mathematical representation of Earth’s magnetic field. The latest version, released in December 2024, ensures precise heading and positioning corrections to account for ongoing geomagnetic changes.
NDAA-Compliant UAV Now integrated with ArcGIS Flight
Esri now supports the Astro Max UAV in its ArcGIS Flight application. The Astro Max is the first Blue UAS-cleared and NDAA-compliant UAV to integrate with Esri’s platform.
The Astro Max, developed by Esri partner Freefly Systems, adheres to the security and performance standards set by the National Defense Authorization Act and the Defense Innovation Unit’s Blue UAS initiative. This industrial UAV is designed to enhance the capabilities of government and enterprise users utilizing ArcGIS Flight.
Autonomous Swarm Control Controls various autonomous platforms
The Autonomous Multi-Domain Operations Resiliency Platform for Heterogeneous Unmanned Swarms (AMORPHOUS) software features a single-user interface to operate thousands of autonomous assets simultaneously. Designed with an open architecture, this software enables the U.S. and allied militaries to control a mix of uncrewed platforms, payloads and systems.
AMORPHOUS includes an intuitive and distributed command-and-control interface to give operators the flexibility to conduct a wider array of intricate military missions. This collaborative autonomy at scale will provide warfighters with a decisive overmatch capability.
L3Harris is developing prototypes using the AMORPHOUS architecture on contracts for the U.S. Army and the Defense Innovation Unit. AMORPHOUS has demonstrated flexibility and interoperability by controlling multiple, separate assets across multiple vehicle types operating in different domains during government-managed tests.
AMORPHOUS supports decentralized decision-making, which enables individual, uncrewed assets to perform tasks autonomously and make real-time tactical decisions inside the network.
Advanced Counter-UAV Radar Multi-console radar control and display system
Cambridge Pixel has developed a radar control and display system for Weibel Scientific’s XENTA surveillance radar, which is designed for modern air defense and counter-unmanned aerial systems (C-UAS) applications.
The XENTA radar includes 3D target tracking, continuous target illumination and synthetic receiver beamforming. It is available in two configurations: the XENTA-M for short-range air defense and the XENTA-C for C-UAS operations.
The system is designed to work seamlessly with third-party command-and-control systems, enhancing operational efficiency.
Cambridge Pixel’s library of radar processing software allows users to develop a tailored radar controller specific to the XENTA radar’s requirements. Enhancements were made to existing functionalities, such as improved MIL-STD-2525 overlay graphics and support for dual-redundant operator consoles.
The XENTA radar system can detect small UAVs at distances exceeding 7 km and classify them beyond 5 km. This capability makes it suitable for various applications, including airport security, border control, critical infrastructure protection and event security.
The Pelican 2 agricultural spray UAV has an expanded 300-liter payload capacity and can cover up to 5.3 ha/hr.
It incorporates several technological enhancements designed to meet the demands of agriculture applications. The aircraft features an upgraded four-motor electric propulsion system, a wider 18-m spray swath and advanced lidar and radar systems for fully autonomous day-and-night spraying. These improvements aim to increase efficiency and precision in aerial application while reducing operational costs for farmers.
The Pelican 2’s airframe and structural components are constructed from carbon fiber composites, corrosion-resistant metallic components and 3D-printed assemblies.
MIKROE has unveiled the GNSS RTK 5 Click, a compact add-on board for high-precision positioning and navigation demands. It features the UM980, an all-constellation multifrequency RTK positioning module from Unicore, with the advanced NebulasIV SoC for enhanced performance.
It supports Swift Navigation’s Skylark precise positioning service, multiple GNSS constellations, and RTK positioning for centimeter-level accuracy. The board also features JamShield technology for robust performance in challenging environments, USB connectivity for easy configuration and visual status indicators for module status and GNSS signal reception.
It can be used for a variety of applications, including surveying and mapping, precision agriculture, UAVs, autonomous robots and autonomous driving.
A roundup of recent products in the GNSS and inertial positioning industry from the November 2024 issue of GPS World magazine.
OEM
High-Dynamics MEMS Gyro Designed for precision navigation applications
The GYPRO4300 is a high-dynamics MEMS gyro designed for precision navigation applications. It features a ±300 °/s input range, 200 Hz bandwidth and 1 ms latency, making it ideal for dynamic environments. With a bias instability of 0.4 °/h and an angular random walk of 0.07 °/√h, the GYPRO4300 offers high-performance sensing in a compact, digital and low size, weight and power (SWaP) package.
Building on the GYPRO4300, the GYPRO4050 is a specialized north-seeking gyro for low-dynamics applications. This derivative offers 2° azimuth accuracy and is currently in the customer sampling stage. The GYPRO4050 maintains the same miniature package design as its predecessor, ensuring consistency across the product line.
At INTERGEO 2024, TDK showcased a prototype based on an ongoing research and development project. This new development utilizes the same miniature package as the GYPRO4300 and GYPRO4050 but demonstrates ultra-low noise capabilities, achieving an azimuth accuracy of less than 1°. This product is slated for launch in 2025.
This series of anti-jamming antennas comes in two models, PT023 and PT024. The antennas are specifically engineered to operate in challenging environments characterized by complex electromagnetic interference, high-power signals and strong multipath effects.
They are well-suited for scenarios involving low-elevation angle interference, high-power interference sources and radio communication system noise. The PT023 model utilizes multiple array elements combined with amplitude and phase manipulation to achieve spatial radiation shaping. This antenna also incorporates advanced multi-level filtering technology, effectively suppressing out-of-band noise power.
The PT024 model features vertical and horizontal two-dimensional polarization suppressors. This design effectively mitigates the reception of both odd and even LHCP and RHCP signals originating from the rear of the antenna, according to the company. It can also suppress low-elevation multipath signals at the same frequency and out-of-band noise signals. These features seek to enhance the antenna’s performance in complex electromagnetic environments.
Triple-Band RTK Receivers Integrated into ArduSimple’s evaluation boards
The UM980, UM981 and UM982 RTK modules are integrated into the ArduSimple simpleRTK3B series to accelerate high-precision GNSS integration. Supporting Galileo High Accuracy Service (HAS) and fast update rate (50Hz), these devices are suitable for applications that require reliable and precise navigation.
SimpleRTK3B Budget (UM980): The most affordable step into triple-band precision.
SimpleRTK3B Fusion (UM981): Ideal for projects that need GNSS and inertial measurement unit (IMU) sensor fusion or tilt compensation.
SimpleRTK3B Compass (UM982): Designed for setups requiring dual antennas to determine the heading on moving platforms.
ArduSimple has also integrated Unicore UM980, UM981 or UM982 modules into the simpleRTK3B Micro Unicore, part of its compact Micro-format lineup. It is designed for simple PCB integration, which can significantly speed up the development process and the time to market for new products.
The HX-SE402A and HX-SE403A are full-band, full-frequency antennas that integrate GNSS capabilities with a low-profile radio antenna to support 858-878MHz and 902-928MHz frequency bands. This addresses the growing need for devices requiring both navigation and communication functionalities. Harxon’s new low-profile technology achieves the same functionality at 10 mm height, allowing greater versatility in applications that demand precise positioning alongside wireless communication. Additionally, Harxon offers custom tuning services to optimize integration into OEM end-user modules for specific applications.
Advanced Navigation has expanded its Certus product line by introducing the Certus Mini series. This development marks a significant advancement in compact and high-performance navigation technology for field robots, autonomous vehicles and UAVs.
The Certus Mini series comes in three variants:
Certus Mini D: A dual-antenna inertial navigation system (INS).
Certus Mini N: A GNSS-aided INS.
Certus Mini A: An attitude and heading reference system (AHRS).
These lightweight systems, weighing no more than 55 grams (1.9 oz), offer impressive performance and cost-efficiency for their size. The Certus Mini D utilizes dual-antenna GNSS for accurate heading, position and velocity measurements. It operates on L1/L5 multi-constellation GNSS and offers enhanced interference immunity and position accuracy, particularly in challenging urban environments. The Certus Mini series suits various applications, including surveying, agricultural robotics, open-pit mining and asset tracking.
Direct Georeferencing Solution Designed for UAV mapping
The APX RTX portfolio is a new line of direct georeferencing solutions designed for UAV mapping sensors. This system enables high-accuracy mapping across diverse environments, ideal for OEMs and UAV payload integrators. At the core of the APX RTX portfolio is the Trimble CenterPoint RTX technology, which offers both real-time and post-mission direct georeferencing. This capability allows for centimeter-level accuracy without the need for base stations, making it compatible with various sensors, including cameras, lidar and hyperspectral mapping devices.
The DT46 lidar UAV is a fixed-wing system designed for long-distance inspections and the creation of precise digital twins. The DT46 model integrates the YellowScan Voyager lidar with a high-resolution RGB camera. Equipped with a laser scanner with a 100° field of view and an acquisition rate of up to 2400 kHz, the YellowScan Voyager offers optimal point density for demanding projects.
With a flight range of up to 300 km, depending on whether vertical take-off and landing (VTOL) or catapult take-off is employed, the UAV is designed for long-distance operations and can be deployed in under 15 minutes without requiring specialized tools. This autonomous solution offers a seamless end-to-end solution for various industries requiring aerial surveying and inspection capabilities.
GNSS Receiver Featuring a multi-constellation antenna
The Stonex S900 GNSS receiver features a high-accuracy, multi-constellation antenna, a powerful UHF transmitter and the GSM 4G modem for a fully integrated communications choice, combined with a light and modern design. It tracks signals from GPS, GLONASS, BeiDou, Galileo and QZSS satellites. On the S900, two smart hot-swappable batteries can be inserted simultaneously, ensuring a maximum of 12 hours of operation. The power level can be checked and seen on the controller or directly on an LED bar on the battery.
The HydroBoat 1500 is a versatile unmanned surface vessel (USV) driven by four powerful thrusters and designed to carry out underwater topographic surveys of lakes, rivers, reservoirs and other bodies of water. With a payload capacity of 60 kg, it can be integrated with the SatLab HydroBeam M4 portable multibeam echosounder, as well as a variety of other payloads such as side scan sonars and ADCPs. The vessel is IP67-rated and includes a millimeter-wave radar and 360° omnidirectional camera for accurate obstacle detection and safe navigation. It is also equipped with a dual RF and 4G cellular communications system.
The Jupiter Laser RTK integrates GNSS, auto-IMU (inertial measurement unit), laser and dual-camera systems into a single unit. It incorporates a precise green laser that remains visible even in bright daylight. This feature allows for precise measurements of points in hard-to-reach, signal-blocked or potentially hazardous locations. It also features a night vision camera, allowing users to see feature points even in low-light conditions.
The RTK system’s laser range is up to 50 m, making it suitable for challenging surveying environments. It incorporates visual technology to offer surveyors an immersive experience during surveying and stakeout operations, improving working efficiency and productivity.
EchoONE combines Teledyne’s lidar and camera technology with Inertial Labs’ remote sensing payload instrument (RESEPI). EchoONE is designed for industries requiring precise aerial surveying and mapping solutions, such as land surveying, electric utility vegetation management, asset modeling, as well as transportation and infrastructure projects. Users can create detailed 3D models for infrastructure and asset management, offering valuable insights for maintenance and planning. EchoONE also generates fully undecimated georeferenced point clouds in real time, which allows for in-field verification. This capability is complemented by rapid post-processing through RESEPI’s “one-click” PC-Master Pro solution.
The i83 Pro is an inertial measurement unit (IMU) real-time kinematic (RTK) GNSS receiver. This receiver combines GNSS capabilities with extensive compatibility options to address the diverse needs of surveying, construction, and mapping professionals. It incorporates CHCNAV’s third-generation GNSS antenna and the latest iStar algorithm, designed to boost GNSS signal tracking efficiency by 30%, according to the company. With 336 channels supporting GPS, GLONASS, BeiDou, Galileo and QZSS constellations, it can achieve centimeter-level precision rapidly, even in challenging environments.
The i83 Pro supports various GNSS surveying modes, such as RTK Networks NTRIP and UHF base-rover configurations. It features an IP68-rated enclosure for dust and water protection, a compact and lightweight design for enhanced portability, a high-resolution color display for clear status information and a 20-hour battery life for continuous operation in rover mode.
LP360 Land is designed to process lidar, GNSS and SLAM data from handheld sensors, particularly the TrueView GO handheld scanner. It features a GIS interface that allows users to combine various geospatial datasets and offers SLAM point cloud processing capabilities. Additionally, LP360 Land includes advanced visualization tools that support multiple synchronized windows for 2D, 3D, profile and immersive views.
Its coordinate system management includes datum and projection transformations. The software also offers quality assurance and control (QA/QC) tools, along with data editing and cleaning functionalities. Users can perform manual and automatic registration of point clouds and utilize an image explorer for contextual analysis by linking point clouds to photos, which allows for the generation of accurate and colorized point clouds even in GPS-denied environments.
Unicore has partnered with ArduSimple to integrate Unicore’s tripleband GNSS real time kinematic (RTK) receivers into ArduSimple’s evaluation boards.
Photo: Unicore
The UM980, UM981 and UM982 RTK modules are integrated into the ArduSimple simpleRTK3B series to accelerate high-precision GNSS integration. Supporting Galileo High Accuracy Service (HAS) and fast update rate (50Hz), these devices are suitable for applications that require reliable and precise navigation.
simpleRTK3B Budget (UM980): The most affordable step into triple-band precision.
simpleRTK3B Fusion (UM981): Ideal for projects that need GNSS and inertial measurement unit (IMU) sensor fusion or tilt compensation.
simpleRTK3B Compass (UM982): Designed for setups requiring dual antennas to determine the heading on moving platforms.
ArduSimple has also integrated Unicore UM980, UM981 or UM982 modules into the simpleRTK3B Micro Unicore, part of the most compact Micro-format lineup. It is designed for simple PCB integration, which can significantly speed up the development process and the time to market for new products.
Marking the lines of a soccer field in Vejle, Denmark using a TinyLineMaker Pro X. (Photo. Unicore)
Robotic technology is increasingly integrated into daily life, including applications such as delivery vehicles, automated lawn mowers and line painting robots. Among the critical factors shaping the navigation capabilities of these robotic machines, precise positioning and heading are paramount. Leveraging Unicore’s high-precision GNSS real-time kinematics (RTK) module, TinyMobileRobots, a Danish company, has developed advanced autonomous systems that excel in navigating complex environments.
RTK technology, which greatly compensates for errors in GNSS satellite signals, enables real-time positioning accuracy within 1 cm to
2 cm. The RTK algorithm in Unicore’s UM960 multi-constellation, multi-frequency GNSS module gives it high reliability, precision and fix rate.
Sports fields grounds maintenance teams at schools, parks, housing developments and other locations often need to refresh line markings, which is a very labor-intensive and challenging process. In search of a more rapid and efficient solution, the team marking the lines of a soccer field in Vejle, Denmark, opted for TinyMobileRobots’ autonomous system. This system is becoming popular among groundskeeping teams due to its ability to queue multiple pitches for sequential marking without recalibration, maximizing productivity. It also alerts users when it is running low on paint and estimates its remaining time and distance. The enhanced capacity afforded by the robot’s efficiency also allowed the team to explore new service offerings, such as providing line marking services to other organizations.
The TinyLineMaker Pro X estimates when it will run low on paint and alerts users. (Image: Unicore)
For outdoor robotic applications, GNSS technology’s levels of accuracy range from sub-meter positioning to decimeter and centimeter levels in real time, depending on the specific application. When integrated with complementary sensors such as inertial navigation systems (INS), vision, and radar, robotic navigation can be effectively realized across diverse and complex environments.
Several technologies — ranging from very mature to nascent — are converging to make autonomous vehicles and devices more useful, efficient, and reliable than ever. They include real-time kinematic (RTK) GNSS, inertial navigation systems (INS), cameras, and radar for navigation; cameras, lidar scanners, multibeam echosounders, and a variety of other sensors for data collection; software-defined radios (SDRs) for secure communications; and artificial intelligence (AI) to plan routes, coordinate the movements of multiple autonomous vehicles and devices (including “swarms” of UAVs), and analyze the data collected.
Read this cover story, featuring case studies from Unicore and CHCNAV, interviews with executives at Per Vices and M3 Systems, and images from Frontier Precision and YellowScan.
A roundup of recent products in the GNSS and inertial positioning industry from the July 2023 issue of GPS World magazine.
TIMING
PTP Firmware To synchronize accurate time from GNSS
The 7.09.00 firmware with a precise timing protocol (PTP) feature enables users to synchronize accurate time from GNSS with other devices and sensors on a shared network. The 7.09.00 firmware’s PTP feature brings stable timing to a user’s other sensor systems connected through a local network to best support positioning, navigation and timing (PNT) and automotive and autonomous applications. The firmware includes SPAN GNSS+INS technology improvements — including a secondary INS solution for built-in redundancy and reliability in challenging conditions. The enhancements are available on all OEM7 cards and enclosures, including all PwrPak7 and CPT7 enclosure variants. The 7.09.00 firmware also features improvements to the time to first fix, a secondary SPAN solution for a more accurate and reliable GNSS+INS output and more. The 7.09.00 firmware is not for precision agriculture applications and is not supported on NovAtel’s SMART antenna products. Hexagon | NovAtel, novatel.com
Timing Antenna A multi-GNSS and high-performance device
The AU-500 antenna is suitable for time synchronization applications. It supports all constellations in the L1 and L5 bands, including GPS, QZSS, GLONASS, Galileo, BeiDou, and NavIC. A built-in noise filter eliminates interference in the vicinity of 1.5 GHz caused by 4G/LTE mobile base stations as well as other radio waves that can adversely affect GNSS reception. The antenna is equipped with lightening protection and features a high-quality polymer radome that prevents snow accumulation. It is also waterproof and dustproof in compliance with IP67. The AU-500 achieves the best performance in time accuracy and robustness fundamental in critical infrastructure, when combined with Furuno’s GNSS receiver, GT-100. The antenna will be available this month. Furuno, furuno.com
Timing Module Dual-band and secure for 5G communications
The NEO-F10T offers nanosecond-level timing accuracy, meeting the stringent timing requirements for 5G communications. It is compliant with the u-blox NEO form factor (12.2 mm x 16 mm), allowing space-constrained designs to be realized without the need to compromise on size. The NEO-F10T is the successor to the NEO-M8T module, providing an easy upgrade path to dual-band timing technology. This allows NEO-M8T users to access nanosecond-level timing accuracy and enhanced security. Dual-band technology mitigates ionospheric errors and greatly reduces timing errors, without the need of an external GNSS correction service. Additionally, when within the operational area of a satellite-based augmentation system (SBAS), the NEO-F10T offers the possibility to improve the timing performance by using the ionospheric corrections provided by the SBAS system.
The NEO-F10T supports all four GNSS and L1/L5/E5a configurations, simplifying global deployments. It includes advanced security features such as secure boot, secure interfaces, configuration lock and T-RAIM to provide the highest-level timing integrity and ensure reliable, uninterrupted service. u-blox, u-blox.com
MOBILE
Image: Unicore Communications
GNSS RTK Module A high precision module for multiple applications
The UM960 module can be used for a wide range of applications, such as robotic mowers, deformation monitoring, UAVs, handheld GIS, and more. It features a high position fix rate and provides accurate and reliable GNSS positioning data. The UM960 module supports BDS B1I/B2I/B3I/B1c/B2a, GPS L1/L2/L5, Galileo E1/E5b/E5a, GLONASS G1/G2, and QZSS L1/L2/L5. The module also has 1,408 channels. In addition to its small size, the UM960 features low power consumption — less than 450 mW. The UM960 also supports single point positioning and real-time kinematic (RTK) positioning data output at 20 Hz. Unicore Communications, unicore.eu
CRPA System A GPS/GNSS anti-jamming system
This system eliminates interference by applying novel beam forming techniques. With an 8-array CRPA antenna, the system can assure the normal operation of a GNSS receiver in the presence of multiple jamming sources. The anti-jam GNSS CRPA system can be deployed using various configurations and operates with civil and military GPS receivers for land, sea, air platforms (including unmanned aerial systems), and fixed installations. The device has an embedded GNSS receiver that supports all satellite constellations. The device is lightweight and compact. It requires minimal integration training and easily integrates into new or legacy platforms. The antenna also offers assured positioning, navigation and timing. Tualcom, tualcom.com
IoT Antennas Rugged and designed to enhance connectivity
KP Performance Antennas’ internet of things (IoT) multiband combination antennas are designed to enhance connectivity for vehicle fleets and base stations. The IoT multiband combination antennas have dedicated ports for cellular, Wi-Fi and GPS bands. They are also indoor and outdoor IP69K rated and can withstand harsh environmental conditions, such as extreme temperatures, water and dust. The antennas are suitable for transportation emergency response and agriculture applications. The IoT multiband combination antennas are in-stock and available now.
KP Performance Antennas, kpperformance.com
Smart Antennas With integrated technology for centimeter-accuracy
PointPerfect PPP-RTK augmented smart antennas combine the ZED-F9R high precision GNSS and the NEO-D9S L-band receivers from u-blox and Tallysman Accutenna technology. The multi-band (L1/L2 or L1/L5) architecture removes ionospheric errors, and the multi-stage enhanced XF filtering improves noise immunity while relying on the dual-feed Accutenna element to mitigate multi-path signal interference rejection. Some versions of the new smart antenna solutions include an inertial measurement unit (for dead reckoning) and an integrated L-band corrections receiver to ensure operation beyond terrestrial network reach. The PointPerfect GNSS augmentation service is now available in North America, Europe and parts of Asia Pacific. Tallysman Wireless, tallysman.com/u-blox, u-blox.com
SURVEYING & MAPPING
Airborne Laser Scanner Suitable for mapping applications
The compact and lightweight VQ-580 II-S meets the increasing requirements of compact laser scanners for medium- and wide-area mapping as well as for corridor mapping. The successor of the VQ-580 II airborne laser scanner, provides a maximum measurement range of 2.45 m. It can be integrated with gyro-stabilized mounts as well as into the VQX-1 Wing Pod. It features high accuracy ranging based on waveform-lidar technology. The VQ-580 II-S also has a mechanical and electrical interface for inertial measurement unit (IMU)/GNSS integration. RIEGL, rieglusa.com
Tablet and GNSS Solution For surveying applications
The RT5 rugged tablet data collector and the RTk5 GNSS solution, which integrate the form factor of the RT5 with real-time kinematic GNSS performance, are suitable for land surveyors, engineers, GIS professionals, and users in need of advanced GNSS positioning with an RTK rover. The RT5 is designed for surveying, stakeouts, construction layout and GIS mapping, and is bundled with Carlson SurvPC — the Windows-based data collection program. The RT5 can run SurvPC with Esri OEM for use in the field. The RTk5 adds an advanced GNSS solution to the RT5, enabling accuracy in a compact, light and versatile package. It comes with a custom-built pole and cradle, a survey-grade antenna, and a small portable helix antenna for handheld GNSS use. Carlson Software, carlsonsw.com
Lidar and RGB Solution Suitable for aerial surveying
The Zenmuse L1 integrates a Livox lidar module, a high-accuracy inertial measurement unit (IMU), and a camera with a 1 in CMOS on a 3-axis stabilized gimbal. When used with Matrice 300 real-time kinematic (RTK) and DJI Terra, the L1 forms a complete solution that gives users real-time 3D data, capturing the details of complex structures and delivering highly accurate reconstructed models. Users can render centimeter-accurate reconstructions with the high-accuracy IMU, a vision sensor for positioning accuracy, and the incorporation of GNSS data. The solution’s IP54 rating allows the L1 to be operated in rainy or foggy environments. The lidar module’s active scanning method enables users to fly at night. DJI Enterprise, enterprise.dji.com
Mapping Platform Real-time, crowd-sourced map data
CityStream Live is a real-time mapping (RTM) platform that enables the mobility industry — including connected vehicles, maps, mobility services, digital twins or smart city applications — to access a continuous stream of crowdsourced road data. This platform provides real-time data on nearly every road across the United States at a reduced cost. Utilizing a crowdsourcing network and artificial intelligence software, CityStream Live offers users and developers a live data feed to increase situational awareness, enhance driving capabilities, increase safety and more. By combining massive data aggregation with real-time data curation, CityStream Live is the first platform to deliver road data streams in real time and at scale, supporting several urban and highway use cases. Nexar, us.getnexar.com
Leica iCON gps 160 (Image: Leica Geosystems)
Smart Antenna Contains features that increase productivity on construction sites
The iCON gps 160 is a versatile solution for various applications. It can be used as a base station, as a rover or for machine guidance. The device is a modernization and enhancement of the successful Leica iCON gps 60, which has been well accepted in the market. The result is a smaller, more compact GNSS antenna with additional features and a larger display for ease of use. The Leica iCON gps 160 is particularly suited to complex construction environments with different GNSS requirements because the ability to switch between the different applications is at the users’ fingertips. Besides checking grade, cut and fill, stakeout points and lines, users can also benefit from using this solution for basic-level GNSS machine guidance. It has an integrated color display, a user-friendly interface, smart setup wizards and an intuitive construction-specific workflow to help contractors get the most out of their investment from day one. Size and weight reductions make the iCON gps 160 easy to handle, while the latest GNSS and communication technologies improve data reception. Leica Geosystems, leica-geosystems.com
UAV
Positioning Solution For UAV delivery applications
The PX-1 RTX is designed for accurate, robust positioning and heading for commercial UAV delivery applications. This solution enables UAV integration companies to add precise positioning capabilities so operators can plan and execute takeoff, navigation and landing tasks as UAV delivery advances to take on more challenging operations. The PX-1 RTX leverages CenterPoint RTX corrections and small, high-performance GNSS-inertial hardware to provide real-time, centimeter-level positioning and accurate inertial-derived true heading measurements. This solution allows operators precise control of UAVs during takeoff and landing to tackle more demanding operations in tight or partially obstructed spaces. It also minimizes operational risks from poor sensor performance or magnetic interference by ensuring greater positioning redundancy, which is especially important as commercial UAV delivery operations venture into difficult urban and suburban environments. Trimble Applanix, applanix.com
Certification Reference Guide A guide for the AAM industry
Business and government leaders, engineers, members of the media and any user with an interest in the future of flight can use the Honeywell State of UAS and UAM Certification Guide to help navigate and communicate the complexities of vehicle certification and operational approval across multiple vehicle segments. Industry professionals can access the living document online at aerospace.honeywell.com/us/en/products-and-services/industry/urban-air-mobility. The certification reference guide summarizes evolving Federal Aviation Administration and European Union Aviation Safety Agency rules across multiple advanced air mobility (AAM) segments. It also links to documents that AAM professionals can reference to better understand detailed certification requirements. Honeywell Aerospace, aerospace.honeywell.com
Image: A2Z Drone Delivery
Delivery UAV Suitable for aerial mapping, UAV inspection, forestry services, search and rescue operations, water sample collection, offshore deliveries, mining, and more
The RDSX Pelican leverages a hybrid vertical takeoff and landing (VTOL) airframe with no control surfaces to combine the reliability and flight stability of a multirotor platform, with the extended range of a fixed-wing craft. With no ailerons, elevator, or rudder, the Pelican’s durable design eliminates common points of failure and extends operational time between maintenance overhauls. Designed to meet the 55 lb takeoff weight limitation for Federal Aviation Administration Part 107 compliance, the Pelican can carry payloads of 5 kg on missions up to 40 km, roundtrip. The Pelican can be optimized for extended range operations or to deliver payloads from altitude with the company’s RDS2 UAV delivery winch. Available in multiple configurations, the RDSX Pelican can be customized for an array of missions. The Pelican enables deliveries from altitude where spinning propellers are kept far from people and property, mitigating consumer privacy concerns of low-flying UAVs while abating intrusive rotor noise. Alternatively, for missions in which the UAV can safely land at its destination, a simple servo-release mechanism can release payloads and expand the Pelican’s payload capacity.
A2Z Drone Delivery, a2zdronedelivery.com
UAS Suitable for mapping applications
The Trinity Pro UAS features Quantum-Skynode autopilot, using a Linux mission computer. This provides additional onboard computing power, increased internal storage, versatility and interoperability. Included in the Trinity Pro system is QBase 3D operations software. As the Trinity Pro is built on the Trinity F90+ UAS, its new capabilities include planning functions for missions requiring takeoff and landing at different locations, allowing for efficient and safe long corridor flights and beyond visual line of sight operations. The platform also incorporates advanced self-diagnostics to ensure safe operation. The UAS now includes an enhanced terrain- following system. Additionally, improvements to trigger point calculations results in improved image overlap and higher data quality. The Trinity Pro features automatic wind simulation for crash avoidance in bad weather and a linear approach for landing. The UAS is equipped with a downfacing lidar scanner that provides highly accurate ground avoidance and landing control. The system features USB-C ports for faster data transfer. The Trinity Pro is protected against dust and water damage and features increased wind limits of up to 14 m/s in cruise mode and 11 m/s during hover.
Quantum Systems, quantum-systems.com
Unicore Communications has released a GNSS, high precision, real-time kinematic (RTK) module, the UM960. This module can be used for a wide range of applications, such as robotic mowers, deformation monitoring, UAVs, handheld GIS, and more.
It features a high position fix rate and provides accurate and reliable GNSS positioning data. The UM960 module supports BDS B1I/B2I/B3I/B1c/B2a*, GPS L1/L2/L5, Galileo E1/E5b/E5a, GLONASS G1/G2, and QZSS L1/L2/L5. The module also has 1,408 channels.
In addition to its small size, the UM960 features low power consumption — less than 450 mW. The UM960 also supports single point positioning and RTK positioning data output at 20 Hz.
Unicore has released its new generation of GNSS positioning product, the UM982. The UM982 is a high-precision dual-antenna real-time kinematic (RTK) positioning and heading module supporting all constellations and all frequencies.
The UM982 is suitable for use in UAV, precision agriculture and autonomous machine applications. The module is designed to meet the requirements of these markets, providing technological innovation. The module supports BDS B1I/B2I/B3I, GPS L1/L2/L5, GLONASS L1/L2, Galileo E1/E5a/E5b, QZSS L1/L2/L5 and SBAS in dual-antenna mode. It offers the following advantages.
Small size. The UM982 is highly integrated. With its size of 16.0 × 21.0 × 2.6 mm, it is a compact dual-antenna heading modules that reduces the design area of the customer’s board by 72% compared to previous modules.
Low power consumption. Low power consumption means less energy usage and a better application experience. Lowering the power consumption while keeping performance high is one of the key technical research directions of the GNSS positioning modules. The average power consumption of all versions of the UM982 module is less than 0.6 W, which is suitable for applications that require low power consumption, such as UAVs.
High integration. The UM982 was developed on the basis of NebulasIV, Unicore’s proprietary GNSS system on chip (SoC). NebulasIV integrates RF, baseband and high-precision algorithms on a single chip, with built-in functions providing powerful support for the UM982’s high performance.
High precision and high performance. The GNSS SoC is a key part of the navigation system, and the performance of the chip largely determines the performance of positioning modules. High-level performance indicators include raw observation accuracy, RTK positioning accuracy, PPP positioning accuracy, and time to first fix.
Robustness. Using the company’s dual-RTK technology, the UM982’s two antennas can independently participate in deriving an RTK solution and outputting the positioning results. This is convenient for customers conducting reliable verification in various application scenarios. By checking the RTK positioning results of both antennas, abnormal measurements in complex scenarios can be avoided.
High reliability. A built-in, advanced anti-jamming unit provides the UM982 with strong anti-jamming ability. The module detects jamming and can output the jamming strength. It also supports digital encryption to ensure the security of data transmission, and supports multi-frequency independent acquisition and tracking to ensure the reliability and accuracy of positioning results even in complex electromagnetic environments.
Although GNSS has been applied in agriculture for many years, farmers still encounter challenges caused by GNSS. No matter the farm task — planting, spraying, harvesting or specialized applications such as robotic grass mowing — position accuracy matters.
Here are the most common issues farmers have and how Unicore’s products help.
Under canopy. They are unable to get a fix under heavy foliage canopy because the real-time correction signal is interrupted or “shaded out” by the canopy. Unicore is launching two new modules that will help mitigate this problem.
Loss of lock. At times, the receivers lose lock or get large position errors when the ionosphere’s effects are severe. Driven by a full-constellation and full-frequency RTK engine, Unicore’s RTK algorithm takes advantage of triple and quad frequency observables, effectively mitigating ionospheric residuals.
Loss of 4G signals. RTK can provide real-time centimeter-level high-precision positioning, which requires real-time base station data. In practical applications, radio or wireless network communication is often interrupted. During the interruption of the base station data, RTK’s positioning accuracy decreases quickly. Unicore’s RTK KEEP technology can maintain the centimeter-level positioning accuracy for more than 10 minutes after the interruption.
Lack of CORS stations. It is challenging to provide a stable high accuracy position for an ultra-long baseline. With the mitigation of ionospheric and tropospheric delays, Unicore products’ RTK baseline can be extended to up to 50 kilometers.
The UM980 is Unicore’s new-generation high-precision RTK positioning module, supporting full constellation and full-frequency. Relying on the strengths of high reliability, precise positioning accuracy and low latency, UM980 is not only well suited for high-precision surveying and mapping, but also a good choice for rover or base station receivers in agriculture.
The UM982 is a dual-antenna high-precision positioning and heading module. Since its master and slave antennas can simultaneously track all the frequencies of all the GNSS systems, the UM982 performs fast on-chip RTK positioning and dual-antenna heading solutions without the need to initialize the IMU. Featuring great positioning performance and stability, the UM982 is a perfect choice for high-precision agriculture applications, such as drones, autonomous tractors and autonomous lawnmowers.
XAG introduces agricultural drones for farmers in China. The XMission drone can reduce costs on fertilizer, pesticides and other treatments. (Photo: XAG/Unicore)
Pesticides, fertilizers and water are the most important means to enhance agricultural crop production.
The prevalent infestation of fall armyworm in China has resulted in reduced yields, threatening food security and the livelihood of smallholders. It’s impractical to conduct manual spraying over farmlands larger than 5 hectares, and this also runs both the risk of wasting large amounts of pesticides and chemical poisoning.
Given the situation, smart agriculture devices such as drones have come in handy for fixing these problems, with minimal environmental impacts. In China, professional farmers and agricultural service providers have already harnessed existing drone technology to conduct appropriate chemical sprays to safeguard the country’s crop production.
The XAG XMission drone has centimeter-level navigation and can operate fully autonomously over complex terrain and easily adapt itself to different spraying conditions for various crop species. Farmers are therefore relieved from much physical effort while no longer risking their health in the battle against fall armyworm.
Equipped with Unicore’s high precision dual-antenna GNSS module (UM482), dual RTK plus GNSS positioning system, real-time centimeter-level flight positioning provides reliable data support in various air tasks. XAG’s drone carries a 4G communication module connected to the XAG Cloud RTK network in order to immediately start missions without setting up portable ground RTK bases.
Unicore UM482. Unicore’s GNSS high precision module (UM482) provides centimeter-level accuracy real-time positioning, with 0.2°, 1-meter baseline course information. UM482 supports single-module dual-antenna signal access and has a dual-RTK engine, enabling high-precision, high-reliability directional heading and dual-RTK real-time positioning, with each RTK engine calculating position independently. This receiver meets the flight needs of different types of UAVs for many different scenarios.
Virus Fighting. XAG’s drones have also joined the fight against the spread of the coronavirus. In Feburary, XAG announced a 5-million-yuan fund for coronavirus response, to be put toward aerial disinfectant sprays to curb the spread of the virus in rural areas. The company’s fleets were used in China’s Shandong province on Jan. 28, where they reportedly disinfected a local community of more than 300,000 square meters in less than 4 hours.
High-Dynamics MEMS Gyro
Anti-Jamming
Triple-Band RTK Receivers
OEM GNSS Antenna
OEMs
Direct Georeferencing Solution
Fixed-Wing UAV
GNSS Receiver
USV
Laser RTK
UAV Lidar Scanner
Receiver
Software Solution
