GPS World

Author: Jesse Khalil

  • Xona Space Systems, Trimble to deliver advanced navigation services

    Xona Space Systems, Trimble to deliver advanced navigation services

    Xona Space Systems and Trimble have collaborated to integrate Trimble correction services with Xona’s PULSAR high-performance navigation service.

    Initial satellite launches are expected in late 2026 with service starting in 2027 through the PULSAR satellite network, enabling secure, high-precision positioning for applications ranging from geospatial to low-power mass mobile and IoT. In support of this new and developing collaboration, Xona has received an investment from Trimble Ventures.

    Xona PULSAR, powered by Xona’s planned network of small satellites in low-Earth orbit (LEO), is being developed to deliver robust and secure high-precision positioning and navigation services directly to current GNSS hardware. The PULSAR service, which will include high precision correction services through this collaboration, has the potential to provide scalable, cost-effective solutions for industries with demanding positioning and navigation requirements, such as civil construction, surveying and mapping, and automotive and IoT applications. Xona’s signals are also expected to enable operations inside low-rise buildings, as well as improve resistance to jamming and interference compared to current GNSS capabilities.

    Precision positioning solutions from LEO constellations are intended to provide new enhanced capabilities along with high levels of uptime to meet the rapidly evolving needs of industries around the world. Including Trimble correction services with Xona PULSAR is expected to enhance the reliability of Trimble correction services delivery, which is crucial for users in areas without reliable cell coverage, limited sky visibility environments, including high-latitude regions and other challenging geographies.

  • DJI unveils ‘drone-in-a-box’ solution for autonomous operations

    DJI unveils ‘drone-in-a-box’ solution for autonomous operations

    DJI has introduced the DJI Dock 3, its first “drone-in-a-box” solution designed for vehicle-mounted deployments and 24/7 remote operations in various environments. This system is compatible with the Matrice 4D and Matrice 4TD UAVs, which feature advanced cameras and IP-rated protection for challenging conditions. The UAVs are ideal for public safety, emergency response and infrastructure inspection.

    When pre-heated, the DJI Dock 3 can operate in temperatures as high as 50 °C and as low as -30 °C. It is IP56-rated dust and water-resistant to protect its internal systems. The accompanying UAV features IP55-rated protection and low-noise anti-ice propellers to ensure stable flights in freezing rain or winds up to 12 m/s.

    This system supports flexible deployment options, including vehicle-mounted setups optimized for emergency operations and long-distance inspections. It enables horizontal calibration and cloud-based dock location adjustments. For enhanced efficiency, two docks can be mounted on a single vehicle to facilitate dual-UAV rotations. In fixed deployments, the D-RTK 3 Relay Fixed Deployment Version can be added to improve video transmission and satellite connectivity.

    The Matrice 4D and 4TD UAVs have a wide-angle camera, medium tele camera, tele camera and laser range finder. The Matrice 4D features an advanced camera suite designed for high-precision mapping. The Matrice 4TD includes an infrared thermal camera for public safety and emergency response applications.

    The system also features an airborne relay function using the DJI RC Plus 2 Enterprise controller. This allows one drone to act as a relay to extend the operational range of another drone in areas without a 4G signal or with obstructions, making it particularly useful for search and rescue missions or inspections in mountainous regions.

    The DJI Dock 3 integrates seamlessly with DJI FlightHub 2 to enable intelligent aerial operations. Automated flight routes allow drones to capture images or detect anomalies autonomously. Features like intelligent change detection provide periodic analyses of environmental changes, while the Virtual Cockpit interface allows operators to adjust gimbal orientation remotely using the new Mouselook feature.

    To support regulatory compliance in strictly controlled airspace, the system includes a Flight Termination System , which can manually or automatically stop drone operations if necessary. Additionally, DJI Care Enterprise Plus offers comprehensive protection plans that include unlimited repairs within coverage limits and battery replacements.

  • Android Eos Tools Pro app now supports Skadi Series GNSS receivers

    Android Eos Tools Pro app now supports Skadi Series GNSS receivers

    The Android version of the Eos Tools Pro app by Eos Positioning Systems (Eos) now fully supports the new Skadi Series GNSS receivers. This update introduces advanced features of the Skadi Series, such as Skadi Tilt Compensation and the Skadi Smart Handle, to Android users.

    Key features of the update include:

    • Flexibility across receiver models: Android users can now use Eos Tools Pro with Skadi Series receivers, as well as Arrow Series GNSS receivers, while maintaining a user-friendly design.
    • Tilt compensation for streamlined workflows: The app processes tilt-compensated GNSS positions provided by Skadi Tilt Compensation, allowing for accurate positional data even when survey poles are tilted. These values can be streamed directly to third-party apps without additional steps.
    • Enhanced accuracy with Skadi Smart Handle: The Skadi Smart Handle allows users to achieve RTK-level accuracy during GNSS positioning without a physical range pole, making it ideal for handheld setups.
    • Integration with third-party applications: All GNSS data, including tilt-compensated and Smart Handle-processed values, can be seamlessly transmitted to third-party mobile apps, simplifying workflows.

    The updated Eos Tools Pro app is available for download on the Google Play Store.

  • US Army approves production of MAPS Gen II for GPS resilience and modernization

    US Army approves production of MAPS Gen II for GPS resilience and modernization

    Project Manager Positioning, Navigation and Timing’s Mounted PNT product office has received full-rate production approval for the Mounted Assured Positioning, Navigation and Timing System Generation II (MAPS Gen II), a key Army modernization initiative, from the Program Executive Office Intelligence, Electronic Warfare and Sensors. This approval allows the Mounted PNT office, in collaboration with Collins Aerospace, to begin full-rate production and fielding of MAPS Gen II as it moves toward initial operating capability.

    MAPS Gen II provides GPS anti-spoofing and anti-jamming capabilities through sensor fusion algorithms and non-radio frequency sensors. These features enable mounted soldiers to operate in environments where military GPS is denied or degraded. The system supports U.S. Army forces by allowing them to move, shoot and communicate effectively while distributing PNT data to multiple users on a single platform. This is designed to eliminate redundant GPS receivers and antennas.

    The system includes anti-jamming and anti-spoofing protection, a sensor fusion processor that integrates multiple PNT sources, and open architectures such as APSN and VICTORY. It outputs PNT data through multiple distribution standards, ensuring compatibility across platforms.

  • Jammertest returns to Norway for fourth consecutive year

    Jammertest returns to Norway for fourth consecutive year

    For the fourth consecutive year, Jammertest will take place in Bleik on Andøya, Norway, with applications now open until March 15, 2025. This event serves as a critical platform for industry and equipment manufacturers to test their systems against jamming and spoofing attacks, identify vulnerabilities and develop more resilient solutions. It attracts participants from diverse sectors, including the global automotive and security industries, telecommunications, academia and government authorities.

    The event’s importance is underscored by the growing reliance of civilian services on satellite communications. Essential societal functions — such as transportation, emergency services, electronic communication, financial systems, and power supply — depend on accurate satellite-based positioning and timing. However, incidents of signal interference have highlighted vulnerabilities. For example, rescue helicopters in Norway have faced landing difficulties due to disrupted signals, and airports have been affected by illegal jammers. Airlines have also reported spoofing activity. According to the Norwegian Communications Authority, GNSS interference is an escalating concern that demands ongoing testing and innovation.

    Jamming refers to the deliberate disruption of signals such as GPS or radio frequencies, while spoofing involves transmitting false signals to deceive receivers. Both tactics pose significant risks to civilian infrastructure. The Jammertest provides a unique opportunity for participants to evaluate their equipment under real-world conditions at Andøya’s remote location. This setting allows for “open air” testing without risking disruptions to civilian infrastructure or air traffic control systems — an advantage not feasible in densely populated areas.

    Andøya’s geography makes it an ideal site for these trials. Surrounded by mountains and isolated from major population centers, it enables high-power signal testing while minimizing societal impact. Participants receive direct feedback on how their systems perform under controlled interference scenarios.

    About Jammertest

    Jammertest is recognized as the world’s largest open arena for testing resilience against jamming and spoofing attacks. It is organized in collaboration with several Norwegian authorities, including the Norwegian Public Roads Administration, Norwegian Communications Authority, Norwegian Defense Research Establishment, Norwegian Metrology Service, Norwegian Space Agency, Norwegian Mapping Authority, and Testnor.

    This year’s event is scheduled from Sept. 15-19, 2025.

  • Astranis advances resilient GPS technology for US Space Force

    Astranis advances resilient GPS technology for US Space Force

    Astranis has completed a critical demonstration for the U.S. Space Force’s Resilient GPS (R-GPS) program, showcasing its ability to transmit core GPS waveforms using software-defined radio hardware. Conducted ahead of schedule and within budget, the demonstration highlights Astranis’ ability to adapt its flight-heritage high-orbit satellite hardware to meet new resilience requirements for the Space Force.

    The test took place at Astranis’ headquarters in San Francisco, California, using a flight-like software-defined radio and positioning, navigation and timing algorithms provided by Xona Space Systems, a partner and subcontractor for the R-GPS program. Astranis transmitted a GPS Course Acquisition (C/A) navigation signal through its resilient GPS payload and demonstrated signal acquisition and recovery of Legacy Navigation messages with an off-the-shelf GPS receiver. According to Astranis, this validated that its resilient GPS design, Nexus, complies with GPS specifications “out of the box,” ensuring compatibility with existing user equipment without requiring costly upgrades.

    Astranis was selected in September 2024 as one of four contractors to design next-generation resilient GPS satellites under the Space Force’s initiative. The company received its Authority to Proceed on Sept. 19, 2024, and has since exceeded program objectives ahead of schedule. The R-GPS program aims to augment the existing GPS constellation with smaller, cost-effective satellites to enhance resilience against threats such as jamming or spoofing.

    Astranis is advancing its satellite design in preparation for the Space Force’s goal of launching the first eight R-GPS satellites by 2028. The company’s approach leverages its MicroGEO satellite design and software-defined radio technology to deliver resilient capabilities while maintaining compatibility with legacy equipment.

  • SBG Systems upgrades Ellipse product line

    SBG Systems upgrades Ellipse product line

    SBG Systems has released the New Ellipse, a firmware upgrade for the Ellipse product line. The system can now be used as an attitude and heading reference system or inertial navigation system.

    Powered by the latest-generation sensor fusion algorithm, the New Ellipse is designed to enhance navigation, attitude, and heave performance for stable and accurate positioning even in high-dynamics environments and challenging conditions.

    Additionally, it introduces advanced GNSS-denied capabilities, featuring newly integrated flags that trigger when GNSS jamming or spoofing threats are detected. This allows users to reject or re-enable external sensors — such as GNSS — without resetting the filter. It seeks to provide users with enhanced visibility and control over how the individual system responds to these events, allowing for more precise adjustments in challenging environments.

     The New Ellipse offers several new features that simplify system integration. It now supports seamless configuration and interfacing via a robust RESTful API. The user-friendly interface allows for fast and flexible configuration using simple command lines, enabling users to tailor the Ellipse to their specific needs and applications. The firmware upgrade is now available at no additional cost to all users of compatible hardware (v3.x).

  • Quectel unveils multi-constellation, quad-band GNSS module

    Quectel unveils multi-constellation, quad-band GNSS module

    Quectel Wireless Solutions has introduced the LG680P, a multi-constellation, quad-band GNSS module designed to provide high-precision positioning for applications such as precision agriculture, intelligent robotics and surveying. It has a multi-constellation capability for accurate and reliable positioning.

    The LG680P supports concurrent reception of L1, L2 and L5 frequency bands, which seeks to improve signal quality and precision. Additionally, it is equipped to support advanced signals such as Galileo E6, QZSS L6 and BDS B2b for Precise Point Positioning (PPP) technology. This feature enables high-precision accuracy without requiring local or broadband connectivity. The module’s ability to integrate these technologies makes it suitable for demanding environments where reliable positioning is critical.

    The module achieves horizontal accuracy of up to 0.8 cm + 1 ppm, even in challenging urban environments. It has been tested with dual-band corrections to ensure backward compatibility with existing systems while supporting quad-band corrections for optimal performance. This backward compatibility allows the LG680P to replace older dual-band systems seamlessly, offering enhanced precision and futureproofing without requiring immediate infrastructure upgrades.

    Features and Applications

    To maintain signal integrity in complex electromagnetic environments, the LG680P incorporates professional-grade anti-jamming and interference detection algorithms. It’s built-in NIC anti-jamming technology suppresses multiple narrow-band interferences, improving signal reception and stability. These features make the module highly robust in environments with significant electromagnetic interference.

    The LG680P is compact, with a 22 mm by 17 mm footprint that adheres to a widely used industry form factor. It supports multiple interfaces such as UART, SPI, I2C, and CAN, ensuring seamless integration into diverse platforms. The module also supports external active antennas to optimize signal reception and enhance positioning accuracy.

    The LG680P is suited for various applications, including autonomous lawnmowers, delivery robots, surveying equipment, and precision agriculture tools. Quectel also offers two external full-band GNSS antennas compatible with the module: the YEGR001W8AH geodetic GNSS antenna with versatile mounting options and the YEGD006U1A compact patch antenna designed for high-precision positioning.

  • Hexagon | NovAtel, GPR to advance sensor fusion for precise positioning

    Hexagon | NovAtel, GPR to advance sensor fusion for precise positioning

    Hexagon | NovAtel has entered into a Memorandum of Understanding (MOU) with GPR, Inc. to integrate GPR’s WaveSense ground-penetrating radar sensors into NovAtel’s SPAN GNSS/INS solution. This collaboration aims to explore the integration of NovAtel’s SPAN system with GPR’s subsurface mapping technology, enhancing positioning solutions for applications requiring high reliability and centimeter-level accuracy, such as autonomous systems, mining and other mission-critical operations.

    NovAtel’s SPAN GNSS+INS technology has historically provided reliable position, velocity and attitude (PVA) data by combining GNSS signals with IMU data. This approach ensures continuous accuracy during short GNSS interruptions caused by environmental factors like foliage or buildings. By incorporating WaveSense’s ground-penetrating radar as an additional input, the system can maintain accurate PVA solutions even during extended GNSS outages due to obstructions, signal interference, or jamming. This integration is particularly beneficial in GNSS-denied environments or areas lacking clear surface structures.

    WaveSense technology operates by scanning up to 10 ft below the ground to map unique subterranean features. These stable underground patterns serve as a reliable reference for navigation, unaffected by adverse weather conditions such as snow, rain or fog. The combination of SPAN and WaveSense technologies is expected to significantly enhance navigation accuracy and reliability in challenging environments, according to the company.

    Under the terms of the MOU, NovAtel and GPR will collaborate on specific use cases to demonstrate the combined capabilities of SPAN and WaveSense in demanding applications. Following these demonstrations, the partnership may advance toward a full product definition and supply agreement, according to the companies.

  • US Air Force tests alternative PNT systems for GPS-denied environments

    US Air Force tests alternative PNT systems for GPS-denied environments

    The Air Force Life Cycle Management Center’s Positioning, Navigation and Timing (PNT) Program Office, Integrated Solutions for Systems (IS4S) and AEVEX Aerospace have completed flight tests for the Resilient-Embedded GPS/INS (R-EGI) Modular Open Systems Architecture (MOSA). The tests demonstrated R-EGI’s ability to integrate third-party alternative PNT solutions to ensure reliable navigation in GPS-denied environments.

    This achievement marks a step forward in developing R-EGI, demonstrating its ability to integrate a “plug & play” third-party alternative PNT capability that ensures reliable navigation in GPS-denied environments.

    “This flight test represents a pivotal moment in the evolution of resilient PNT systems,” said Jeff Hebert, senior scientist for PNT at the Air Force. “The rapid and cost-effective integration of third-party PNT solutions into Department of Defense weapons systems is precisely why R-EGI and its open architecture were envisioned.”

    The R-EGI system’s open MOSA design enables seamless integration of government and third-party applications to address emerging navigation threats. Its Mission Capability Navigation (MCNAV) component allows for seamless integration of external alternative PNT solutions under challenging conditions.

    During six test flights on a Special Operations Command C-146A Cougar aircraft, R-EGI operated successfully in GPS-denied environments, validating the system’s resilience and capacity for real-time adaptability. Using AEVEX Aerospace’s LynxVBN vision-based navigation system, it maintained approximately 10 m of positioning accuracy for up to 2.5 hours. Notably, LynxVBN was integrated into R-EGI’s MCNAV software in just one hour, underscoring the system’s adaptability. As the algorithms continue to improve and evolve, R-EGI’s alternative PNT accuracy will only become more refined, enhancing its capability to perform in increasingly complex and challenging environments, according to the company.

    “After demonstrating that the R-EGI architecture could integrate multiple GPS receiver vendors, and then three months later, witnessing its performance, from the Cougar-provided live-stream data feed, in real-time GPS-denied flight scenarios was the most impressive showcase we’ve seen in the program’s history,” said Major Bernard Mutz, project manager for R-EGI

    The successful integration of alternative PNT technologies into R-EGI seeks to enhance the system’s GPS resilience. Also, it sets a new benchmark for reliable, flexible navigation in GPS-degraded environments, said Mikel Miller, senior vice president for PNT at IS4S.

  • GEODNET, DroneDeploy advance UAV positioning data

    GEODNET, DroneDeploy advance UAV positioning data

    DroneDeploy, an aerial and ground reality capture and robotics platform, has entered a strategic partnership with the GEODNET Foundation to enhance enterprise UAV capabilities by providing access to high-precision positioning data.

    The partnership will grant DroneDeploy customers access to GEODNET‘s extensive network of 10,000 registered stations. This access will significantly improve the accuracy of UAV surveys, underground utility mapping and documentation for various industries, including construction, mining, energy, and utilities, according to DroneDeploy. The agreement also includes provisions for DroneDeploy to work with its users to establish additional GEODNET stations in areas currently lacking coverage, further expanding the network’s reach.

    “Today’s affordable enterprise drones support sophisticated RTK and PPP survey-grade workflows; however, affordable access to RTK base-station data remains a barrier to efficient usage of these powerful capabilities,” said James Pipe, chief product officer at DroneDeploy. “DroneDeploy is pleased to partner with GEODNET and to offer integrated access to GEODNET’s rapidly growing RTK network.”

  • TCarta launches SDB solution for nautical charts in shallow waters

    TCarta launches SDB solution for nautical charts in shallow waters

    TCarta has introduced a new line of Satellite Reconnaissance Charts designed to complement official marine navigation maps in shallow waters. These digital maps, derived from recently acquired satellite imagery, adhere to International Hydrographic Organization S-57 and S-100 data model standards, mirroring the appearance and symbology of official navigation aids.

    The TCarta Charts provide up-to-date information on seafloor depths, sandbars, reefs, shoals and other submerged hazards, as well as floating dangers in near-shore environments. The new products are particularly valuable for shallow water navigation, where official nautical map products, primarily designed for commercial shipping lanes, may lack detail.

    Available in off-the-shelf 1:20,000 scale and custom 1:4,000 scale, the TCarta Satellite Reconnaissance Charts are delivered in file formats compatible with popular marine navigation software and common GIS platforms. This compatibility ensures easy integration into existing navigation systems.

    These charts are designed to serve as a supplementary tool, providing mariners with additional information to navigate potentially hazardous near-shore environments more safely.