GPS World

Category: GNSS

  • Astranis to develop resilient GPS satellites for USSF

    Astranis to develop resilient GPS satellites for USSF

    Astranis has been selected as one of four prime contractors for the U.S. Space Force (USSF) Space Systems Command’s (SSC) new Resilient GPS (R-GPS) program. This initiative aims to augment the existing GPS constellation with small, low-cost satellites to enhance resilience for both military and civil users. The program’s initial phase, Lite Evolving Augmented Proliferation (LEAP), aims to launch up to eight satellites by 2028.

    As part of this effort, Astranis has been awarded an $8 million contract for concept development. The company plans to leverage its expertise in manufacturing and operating low-cost, high-orbit satellites. Specifically, Astranis will utilize its MicroGEO satellite design and Octane Software-Defined Radio hardware to advance the R-GPS spacecraft design.

    The R-GPS program is characterized by a rapid development timeline. It utilizes the “Quick Start” authority, which allows for contract awards in under six months. Ultimately, the USSF envisions a proliferated fleet of over 20 small GPS satellites to enhance navigation and timing capabilities.

    These satellites will incorporate the latest GPS signals, including M-code, to offer optimal performance even in contested environments. In addition to Astranis, other contractors involved in the initial phase include Axient, L3Harris and Sierra Space.

  • Royal Navy demonstrates quantum-sensing technology for alternative PNT

    Royal Navy demonstrates quantum-sensing technology for alternative PNT

    The Royal Navy has successfully tested a new quantum sensing technology designed for underwater detection. Conducted off the coast of Plymouth aboard HMS Magpie, the trials aimed to evaluate the effectiveness of this quantum-sensing system in identifying submerged objects.

    The technology leverages ultra-cold atoms to measure subtle variations in the Earth’s magnetic field, which indicate underwater objects. This method allows for the detection of items that traditional sonar systems might miss, enhancing the precision of underwater surveys.

    During the tests, the system identified various targets, including a concrete block weighing one ton, and demonstrated sensitivity sufficient enough to detect objects as small as a soccer ball.

    This project is part of a broader collaboration involving the Royal Navy, the Defense Science and Technology Laboratory (Dstl) and industry partners. It reflects ongoing efforts to integrate advanced technologies into naval operations, aligning with the UK’s strategic focus on quantum technologies.

    Future plans include further development and miniaturization of the quantum sensing system to enable its deployment on various naval platforms, such as ships and submarines, as well as autonomous underwater vehicles. The successful trials indicate that this technology could significantly improve the Royal Navy’s capabilities in maritime security and underwater exploration.

  • Ireland unveils Europe’s first verified GNSS data stream service

    Ireland unveils Europe’s first verified GNSS data stream service

    The National Standards Authority of Ireland’s National Metrology Laboratory (NSAI NML) has launched Europe’s first verified GPS/GNSS Data Stream (VGDS) service, designed to enhance the National Timing Grid of Ireland. This initiative, developed in collaboration with Timing Solutions, seeks to provide users with secure and reliable GNSS data.

    The VGDS service provides verified GNSS data via the Internet through Radio Technical Commission for Maritime Services (RTCM) packets. This allows users to verify their own GNSS data streams to mitigate risks such as jamming and spoofing. The service is crucial for various sectors, including government organizations, public institutions, communications, energy, transportation, financial services and cloud data centers, as it provides accurate time and location data.

    David Fleming, NSAI Technical Manager for Time and Frequency, emphasized the significance of this service, stating, “As Ireland’s digital economy continues to grow and more services and public safety aspects are dependent on GNSS/GPS data, the importance of verifiable GNSS/GPS data in Ireland is paramount.” The VGDS service aims to improve the resiliency of Critical Infrastructure sectors by providing safe GNSS/GPS data and signals.

  • Launchpad: Software updates, defense radar, fleet tracking and more

    Launchpad: Software updates, defense radar, fleet tracking and more

    A roundup of recent products in the GNSS and inertial positioning industry from the October 2024 issue of GPS World magazine.

    SURVEYING & MAPPING

    Updated CAD Software
    With enhanced features and workflow improvements

    Topcon Positioning Systems has released a new version of its computer-aided design (CAD) software suite, formerly known as MAGNET. With enhanced features and workflow improvements to the Office, Field and Tools modules, version 9 is also renamed under the Topcon software suite as the business retires the MAGNET brand.

    The software is designed for professionals such as surveyors, engineers, modelers, estimators and project managers, aiming to improve productivity through integrated software capabilities and workflows. It can be used as standalone, office-based CAD software or as a cloud-connected solution that integrates field and office operations with Topcon or Sokkia survey instruments. The platform offers user-friendly and versatile configurations suitable for various applications.

    Topcon Office version 9 introduces new options for working with digital terrain models (DTMs), spot elevations and offset capabilities, enhancing versatility when handling 2D or 3D data sets. Improvements in Topcon Field include better productivity and stake reporting capabilities, advanced resection functionality for unknown control points and a new offset routine for creating points that are not observable with a total station. Both Field and Office modules now support direct import and export with 12D XML file formats.

    Subscribers to the AllDayRTK high accuracy positioning network can now directly import and export RINEX data into Topcon Tools with a current Plus or RINEX subscription. Version 9 of Topcon Tools also features improved coordinate system functions, new traverse calculations, viewing options and enhanced functionality for working with data in tabular view for reporting.

    Topcon Positioning Systems, topconpositioning.com

    4D Scanner
    For AEC professionals

    The PIX4Dcatch smartphone scanning application is now compatible with the Bad Elf FlexGNSS receiver. This integration is designed for professionals in the architecture, engineering and construction (AEC) industries.

    PIX4Dcatch is a comprehensive 3D scanning and AR visualization tool that combines photogrammetry, lidar technology and real-time kinematic (RTK) positioning for precise results.

    The Bad Elf Flex GNSS receiver offers scalable accuracy and flexibility. In its standard configuration, it provides 30-60 cm real-time accuracy for GIS applications. Its daily token model allows users to unlock full RTK workflow for 24-hour periods, achieving 1 cm horizontal accuracy when needed. For users requiring consistent high accuracy, an upgrade to the Bad Elf Flex Extreme is available for permanent RTK capabilities.

    By combining PIX4Dcatch with the Bad Elf Flex GNSS receiver, surveying, construction and building professionals can now create highly accurate 3D models using mobile smartphone scanning technology. The resulting scans can be exported to CAD/GIS platforms for inspection, sharing and collaboration among project stakeholders.

    Bad Elf, bad-elf.com

    UAV
    With an integrated bathymetric system

    The YellowScan Navigator bathymetric system has been integrated into Xer Technologies’ UAVs. This collaboration aims to enhance UAVs’ capabilities for conducting long-range bathymetric surveys and underwater inspections, which are essential in various fields such as environmental monitoring, coastal management and infrastructure development.

    The integrated system allows users to collect high-resolution and accurate bathymetric data, even in challenging aquatic environments. YellowScan’s green laser lidar technology is a key component of this system, providing precise underwater mapping capabilities. Xer Technologies’ UAVs are designed for extended flight durations and can operate for more than two hours, facilitating coverage of larger survey areas in a single mission. This feature is particularly beneficial for projects that require extensive data collection over vast aquatic regions.

    The YellowScan Navigator can achieve a precision of 3 cm and can operate at a maximum altitude of 100 m above ground level. The laser has a range of up to 120 m and features a scanner field-of-view of 44°. It weighs 3.7 kg.

    Xer Technologies, xer-tech.com

    Sonar Series
    For underwater applications

    The ISS360 Sonar Series is a range of imaging sonars designed for underwater applications. This series provides a full 360° field of vision and can detect objects at distances of up to 90 m to 100 m. The ISS360 utilizes compressed high-intensity radar pulse (CHIRP) acoustics to provide image clarity and quality.

    The ISS360 operates within a frequency range of 600 kHz to 900 kHz, offering an angular resolution of 2.2° at 700 kHz and a range resolution of 2.5 mm at lower ranges. The sonar is housed in durable titanium material, providing a depth rating of 4,000 m as standard, with an option available for a 6,000 m rating. Additionally, it has a low power consumption of 3.6 watts, making it efficient for prolonged use.

    The CHIRP acoustics enable adjustable frequency bandwidth for optimized performance in various conditions.

    Its inductive coupling design eliminates the need for slip rings, significantly improving the longevity of the device. For those needing additional data, an optional attitude reference system provides pitch and roll measurements. The sonar comes equipped with seaView software for easy operation, as well as a software development kit (SDK) for custom integrations.

    The series includes two main models: the standard ISS360, which is suitable for a wide range of applications, and the ISS360HD, which offers higher angular resolution and range capability for more demanding operations.

    Impact Subsea, impactsubsea.com

    Machine Control

    Farming Management System
    With an API link

    CropX and CNH Industrial have launched a new digital connection to enhance precision farming and sustainability. This integration establishes an application programming interface (API) link between CropX’s agronomic farm management system and CNH’s Case IH and New Holland Agriculture equipment.

    The new connection streamlines data transfer from CNH machinery to CropX, enabling automated data visualization, record-keeping, planning and variable-rate applications. This comprehensive data transfer covers a wide range of farming activities, including planting, application and harvesting, with specific data points varying based on the equipment type.

    Within the CropX platform, this information is presented in user-friendly tables and maps that can be overlaid with other data layers. This feature allows farmers and agronomic advisers to easily extract valuable insights for improved decision-making. Furthermore, the integration facilitates the creation of variable rate application maps for fertilization and seeding, utilizing advanced agronomic tools within CropX’s system.

    CropX, cropx.com

    Agricultural UAV
    For crop and data management

    The Tesseract Ag Drone is an agricultural drone designed to improve crop and data management for farmers.

    This U.S.-made drone utilizes computer vision and optical technologies to offer farmers detailed, real-time information about their fields. With its comprehensive suite of functionalities, the Tesseract Ag Drone enables farmers to quickly identify pests, monitor weed growth, assess crop and soil health, track weather impacts and observe crop development.

    When paired with the Tesseract Synthesis Software, the drone’s software can transform raw data into actionable insights, allowing farmers to make informed decisions using tools powered by artificial intelligence. The centralized data management system is designed to streamline collaboration among farm teams, fostering teamwork and improving overall productivity.

    Tesseract Ventures, tesseractventures.io

    Transportation

    Fleet Tracking Platform
    Designed to improve operational efficiency

    CerebrumX Labs and Onward Fleet Solutions have partnered to improve fleet management through advanced data analytics and artificial intelligence (AI). This collaboration integrates CerebrumX’s augmented deep learning platform (ADLP) with Onward’s comprehensive fleet management system, offering fleet operators insights into their vehicles and operations.

    The partnership leverages real-time data and robust reporting to enhance operational efficiency, reduce costs and improve driver safety. CerebrumX’s ADLP offers live fleet tracking, ensuring constant visibility of vehicle locations.

    Additionally, it analyzes trip histories to uncover patterns in driver behavior and vehicle usage for fleet managers to make data-driven decisions. Users can also generate customized reports to help optimize various aspects of fleet management, including driver safety protocols, vehicle maintenance and fuel efficiency.

    The system integrates AI to process vast amounts of data from electric and connected vehicles to provide crucial insights into asset performance, energy consumption and maintenance requirements. This capability is particularly valuable for optimizing electric vehicle charging schedules, improving battery life and supporting the broader transition to greener transportation solutions.

    Onward Fleet Solutions, onwardfleet.com

    UAV

    Aerial Imagery Solution
    With Updated Features

    PhotoCapture version 2 is a photogrammetry and aerial imagery solution designed for aerial imaging professionals, surveyors, engineers and other applications that require highly accurate UAV data.

    The new Photocapture Standalone Basic features a new Windows-based foundation with simple installation, a faster user interface, overlap adjustment, more available projections and faster overall photogrammetry processing speed.

    PhotoCapture Standalone Advanced adds the Survey Canvas, which allows manipulation of processed point cloud data such as stockpile volume calculations, the drawing of linework, surfaces and more, all within the PhotoCapture program. New to the PhotoCapture Survey Canvas in version 2 is the View Site feature for viewing changes on sites over time, as well as the ability to remove moving objects.

    PhotoCapture Standalone Advanced also now offers lidar colorization and processing, allowing the integration of lidar and photogrammetry data. Drawing on the strengths of each technology, this new feature creates more accurate and more visually appealing point cloud outputs.

    Carlson’s PhotoCapture Web version offers a completely online solution utilizing cloud computing for processing power and featuring all the functionality of Carlson PhotoCapture Standalone Advanced.

    Carlson Software, carlsonsw.com

    UAV Lidar System
    With long-range capabilities and heavy payload capacity

    GeoCue and Xer Technologies AG have integrated GeoCue’s TrueView 720 lidar and imagery sensor with the Xer X8 UAV platform.

    The integration represents an advancement in aerial operations, particularly for mapping and inspecting large, challenging terrains. By combining the long-range capabilities and heavy payload capacity of the Xer X8 with the high-quality point cloud and imagery data collection of the TrueView 720, this solution allows operators to manage and monitor vast areas with precision and efficiency.

    Xer Technologies, xer-tech.com

    Map Processing Software
    Designed for construction, mining and urban planning

    The WingtraCLOUD software platform now features map processing capabilities to streamline the integration of aerial insights into industries such as construction, mining and urban planning.

    The latest updates seek to help engineering firms and users transition more smoothly from UAV data to actionable insights. By consolidating all stages of aerial data management — from mission planning to insight sharing — into a single platform, WingtraCLOUD eliminates the need for multiple complex tools to simplify workflows.

    This software is designed to reduce errors, prevent rework and accelerate project timelines, leading to increased productivity across key industries.

    With WingtraCLOUD, large-scale mapping projects can be completed quickly. This rapid processing capability is ideal for industries such as construction, where it helps avoid costly delays and resource waste, and in mining, where it enhances safety through quick highwall inspections. In disaster scenarios, WingtraCLOUD’s fast mapping capabilities can aid in efficiently directing resources.

    Wingtra, wingtra.com

    Compact UAV
    Equipped with a 1/2-inch image sensor

    The DJI Neo is a lightweight compact UAV designed to make aerial photography and videography more accessible.

    DJI Neo can be fully controlled without a remote, allowing for palm-based launches and landings. It features AI subject tracking and QuickShots, offering 4K ultra-stabilized video with a flight time of up to 18 minutes.

    The Neo is equipped with a 1/2-inch image sensor capable of capturing 12MP stills and 4K UHD video at 30 fps. DJI’s powerful stabilization algorithms, including RockSteady and HorizonBalancing, ensure smooth and stable footage even in challenging conditions.

    The Neo includes 22 GB of internal storage, capable of saving up to 40 minutes of 4 K / 30 fps video. It supports wireless file transfer to smartphones and easy audio recording through the DJI Fly app.

    DJI, dji.com

    IMU
    For precise navigation and stabilization

    LITEF fiber optic gyroscope (FOG) inertial measurement units (IMUs) are designed for precise navigation and stabilization in various applications such as UAVs. These units feature a comprehensive sensor suite, incorporating three gyroscope axes for rotational measurement and three accelerometer axes for linear acceleration detection. This configuration ensures accurate tracking of an object’s movement in three-dimensional space.

    The IMUs include processing electronics, power supply and input/output interfaces to streamline installation and operation, making them ideal for complex navigation tasks.

    For applications demanding even higher precision, LITEF offers the option to integrate GPS and GNSS receivers with their IMUs. This fusion of inertial and satellite-based navigation technologies is designed to enhance overall system performance, providing more robust and accurate positioning data.

    LITEF, litef.de

    OEM

    GNSS Receiver
    With Xona PULSAR functionality

    Locus Lock has partnered with Xona Space Systems to develop a GNSS receiver that uses Xona’s multi-frequency PULSAR service. Locus Lock aims to provide a robust software-defined GNSS receiver suited for both commercial and military applications.

    Xona’s PULSAR service will be delivered via a constellation of low-Earth orbit (LEO) satellites, which orbit the Earth approximately 20 times closer than GNSS satellites, according to the company. This proximity allows PULSAR to offer higher signal power and a modernized signal design to offer improved multipath mitigation, higher accuracy and increased protection against radio frequency interference and spoofing compared to current GNSS systems.

    The technology is suitable for a wide range of applications, including vehicles navigating dense urban areas, agriculture and construction, UAVs, high-speed aircraft and defense applications. Locus Lock’s GNSS software stack can be deployed on existing customer computational infrastructure, ranging from small embedded devices to larger centralized computers. This flexibility allows for adaptation and configuration of the software to suit specific deployed environments.

    The system features inertially-aided carrier-phase differential GNSS (CDGNSS) for maintaining precision in challenging ecosystems, advanced interference mitigation and detection technology to ensure authentic GNSS signals are received and the dual-antenna, triple-frequency RadioLion RF front-end for capturing raw GNSS signals. These features offer signal situational awareness, anti-spoofing and interference mitigation.

    Locus Lock, locuslock.com

    Dual-Band Receiver Board
    With integrated IMU

    The simpleRTK2B Fusion GNSS RTK dual-band receiver board is a positioning solution that leverages the u-blox ZED-F9R module to provide highly accurate location data.

    This board delivers centimeter-level positioning accuracy, making it suitable for applications requiring precise location information. One of its key features is the integrated inertial measurement unit (IMU), which allows the board to provide full attitude data using a single antenna. This capability is particularly beneficial for compact and resource-constrained systems.

    The board’s design makes it suitable for small, unmanned ground vehicles (UGVs) and slow-moving ground robotics platforms. These applications can greatly benefit from the board’s high-precision positioning and attitude information, enabling more accurate navigation and control.

    The simpleRTK2B Fusion board can be seamlessly integrated with various popular development platforms. It can serve as an external GNSS RTK receiver for autopilot systems and is compatible with both Pixhawk and Ardupilot-based autopilots, enhancing their positioning capabilities with its centimeter-accurate data.

    ArduSimple, ardusimple.com

    Defense

    Rugged Ground Control Station
    For commercial and defense applications

    The Controller Pro is a ground control station (GCS) technology for UAVs and robotics. It seeks to address the growing demand for compact, powerful and versatile control solutions in both commercial and defense sectors.

    The 8-inch Controller Pro boasts a rugged design with an IP65 rating, ensuring durability and protection against dust and water ingress. Equipped with Intel Core i3, i5 and i7 processors, the Controller Pro offers robust performance for mission-critical operations, enabling smooth handling of complex control tasks and real-time data processing. Additionally, the integration of Windows 11 enhances the system’s flexibility and compatibility with various software solutions, allowing for multi-application performance.

    The Controller Pro can be used for surveying, inspection and delivery services. Its rugged design and U.S. National Defense Authorization Act (NDAA) compliance make it ideal for military and law enforcement applications, such as reconnaissance and tactical operations.

    Additionally, its radio-agnostic feature allows it to work with various communication systems, enhancing its versatility across different platforms and missions.

    Mobilicom, mobilicom.com

    Aerial Reconnaissance and Elimination System
    With integrated AI technology

    The Aerial Reconnaissance and Elimination System (ARIES) is designed to enhance situational awareness and counter emerging threats.

    ARIES utilizes AI to detect, classify and respond to threats in real time. The system’s AI continuously adapts to new threats across multiple domains without requiring manual updates to improve situational awareness and accelerate decision-making for military personnel.

    The system can detect and track UAVs beyond visual line of sight (BVLOS). This capability extends the range and effectiveness of counter-unmanned aerial system (C-UAS) operations, providing early warning and enabling rapid response to potential threats.

    ARIES seamlessly integrates with existing defense infrastructure, which eliminates the need for frequent manual system updates and seeks to improve overall mission success rates.

    The system has been successfully demonstrated to key Department of Defense (DOD) stakeholders, showcasing its potential to enhance counter-UAS operations. During the demonstration, ARIES offered critical, real-time intelligence for swift decision-making in response to UAV incursions.

    Skylark Labs, skylarklabs.ai

    Quadcopter UAS
    Department of Defense Blue UAS-certified

    The Teal 2 is a multirotor unmanned aerial system (UAS) designed for military, government and commercial applications. Designed, built and serviced entirely in the United States, the Teal 2 is Department of Defense (DOD) Blue UAS-certified, ensuring it meets stringent standards for government use.

    Its compact and rugged design allows for easy transport and rapid deployment, as it can be folded and carried in a rucksack. Additionally, the modular construction of the Teal 2 facilitates easy repair and reconfiguration in the field, enabling operators to adapt the system to their specific mission needs.

    The UAS weighs 1.25 kg, can reach maximum speeds of 10 m/s and has a flight time exceeding 30 minutes. It is equipped with the FLIR Hadron 640R electro-optical/infrared (EO/IR) sensor system, which includes a dual-axis gimbal for stable imaging. This thermal imaging system excels in nighttime operations, allowing operators to identify and track targets even in complete darkness.

    The Teal 2 supports advanced operational features such as multi-vehicle command and control, which allows for 360° target views or multi-target surveillance. It employs AES-256 encryption for secure data transmission and communication. Powered by the Snapdragon 845 processor, the Teal 2 is also compatible with Athena AI, designed to enhance its capabilities in target recognition and battle tracking.

    Red Cat Holdings, redcat.red

    Radar System
    Designed for C-UAS and BVLOS flights

    This radar system is designed to enhance situational awareness for counter unmanned aircraft system (C-UAS) operations and beyond visual line of sight (BVLOS) flights. The system, which has received Federal Communications Commission (FCC) authorization, is now being distributed to commercial and public sectors in the United States and to certain international markets.

    The system aims to deliver precise detection of both airborne and ground-based objects under various conditions. Its compact design allows for integration into existing infrastructures without the need for extensive setup or specialized training.

    The MatrixSpace Radar is part of an open architecture platform, facilitating integration with various industry-standard systems for unmanned traffic management (UTM), command and control, counter-UAS measures, and traffic and video surveillance systems. This approach aims to offer a unified view for operators to improve the coordination and management of airspace activities.

    MatrixSpace, matrixspace.com

  • JAXA selects ArkEdge to study LEO PNT system

    JAXA selects ArkEdge to study LEO PNT system

    The Japan Aerospace Exploration Agency (JAXA) has awarded Japanese startup ArkEdge Space a contract to study the feasibility of establishing a constellation of positioning, navigation and timing (PNT) satellites in low-Earth orbit. The project aims to provide high-precision PNT signals across the globe.

    Government agencies worldwide are exploring ways to complement and back up GNSS, which is susceptible to natural and deliberate interference. In addition, self-driving cars and autonomous drones require extremely precise location data.

    Under the new JAXA contract, ArkEdge Space will provide a conceptual design for a LEO-PNT satellite and its orbit. ArkEdge will also explore satellite and constellation tradeoffs and consider different signal formats and frequency bands.

    With a new LEO-PNT constellation, JAXA seeks to expand the coverage area of service currently provided by Japan’s geostationary Quasi-Zenith Satellite System (QZSS) satellites.

    Under a separate JAXA contract, ArkEdge is developing positioning and communications services for cislunar space.

  • How GPS aids in Hurricane Helene recovery efforts

    How GPS aids in Hurricane Helene recovery efforts

    Hurricane Helene has caused widespread devastation across the southeastern United States, leaving a trail of destruction more than 500 miles long from Florida to the Carolinas. The storm made landfall at the Big Bend of Florida, on Sept. 26, 2024, as a Category 4 hurricane with sustained winds of 140 mph.  

    The death toll has risen to at least 215 across six states, with hundreds more still unaccounted for, reported ABC News. More than 4.5 million people initially lost power due to the hurricane, with more than two million residents still without electricity days after the storm. Utility companies face significant challenges in restoring power due to blocked and damaged roads. The storm’s destruction has rendered many essential roads and bridges impassable, complicating recovery efforts. 

    Role of GNSS in Recovery  

    GNSS plays a crucial role in disaster recovery operations. These systems provide essential positioning, navigation and timing (PNT) services critical for search and rescue efforts such as flood monitoring. GNSS technology enhances emergency services by enabling synchronized communication networks, providing precise location information and allowing for faster response times. With cell towers and electrical services down, GNSS empowers virtually all disaster recovery efforts.  

    Over the years, our reliance on GNSS has increased into an aspect of life we often overlook. Its importance is emphasized in times of disaster, PNT is critical.  

    A recent public safety announcement issued by the Space Force highlights that a critical component of any successful rescue operation is time. Knowing the precise location of landmarks, streets, buildings, emergency service resources and disaster relief sites reduces the time it takes to navigate challenging terrains to save lives. This information is critical to disaster relief teams and public safety personnel in order to protect life and reduce property loss. GPS serves as the fundamental technology in addressing these needs. 

    The United States Geological Survey (USGS) is also collecting flood data and repairing damaged streamgages to monitor water levels after Hurricane Helene. 

    USGS Mapping the Aftermath  

    As of Oct. 7, USGS provisional streamgage data indicates that at least 34 new flood records were set across the southeast from flooding caused by Helene. Eighteen of these provisional records were set in North Carolina, with six in Tennessee, six in South Carolina, three in Florida and one in Georgia.  

    In Newport, Tennessee, USGS field crews were able to measure high-water marks left behind by flood waters and determined the Pigeon River reached a provisional peak water level of 29.72 ft. The previous record on this river was 21.40 ft, set in 1902. 

    As communities begin the long process of rebuilding, they face numerous challenges, including limited resources, prolonged power outages and disrupted communication systems. However, GPS serves as a backbone in the recovery process, highlighting its significance in times of disaster. The full extent of Hurricane Helene’s impact is still being assessed, with authorities warning the death toll may continue to rise as search and rescue efforts progress. 

  • China completes national eLoran network

    China completes national eLoran network

    The Dunhuang long-wave timing station, a critical component of China’s high-precision ground-based timing system, has been completed and tested. This marks a significant advancement in China’s development of a three-dimensional cross-timing system that spans air, space and land.

    Zhang Shougang, director of the National Time Service Center of the Chinese Academy of Sciences, told Xinhua News that the high-precision ground-based timing system leverages eLoran radio long-wave and fiber-optic timing technology. This system is designed to operate independently of satellite navigation timing, providing backup, complementary functions and mutual enhancement with existing timing systems.

    China has constructed three additional long-wave timing stations in Dunhuang, Korla and Nagqu. When combined with existing stations, the new stations are designed to achieve nationwide coverage of long-wave timing signals.

    During the construction of the Dunhuang station, researchers reported significant breakthroughs in high-precision transmission control and pulse time reference feedback modulation technology. They achieved a megawatt-level Loran timing transmission accuracy of 20 ns, surpassing the current international standard of 50 ns.

    This advanced timing system seeks to support economic and social operations, foster technological development and improve national security. Zhang Shougang noted that after nearly 60 years of development, China has built the world’s most technically complete national timing system.

  • Honeywell unveils resilient EGI for GPS-denied environments

    Honeywell unveils resilient EGI for GPS-denied environments

    Honeywell has unveiled its resilient embedded GPS/inertial navigation system (EGI), designed to address the evolving challenges of modern warfare and meet U.S. government mandates for greater power competition. This navigation system integrates GPS and inertial navigation technologies to deliver precise position, velocity and timing information for various applications.

    Expanding on Honeywell’s H-764 and FALCN, the EGI is specifically designed to fulfill military needs in areas where GPS jamming and spoofing are prominent. The system includes M-code capability, an atomic clock and open architecture compliance, allowing crucial mission flexibility with alternative positioning, navigation and timing (PNT) forms.

    It allows for the seamless integration of various alternative PNT sources, including vision navigation, celestial navigation and magnetic navigation for continuous and accurate navigation even in the face of GPS threats.

    Honeywell plans to make engineering units of this EGI available in early 2026, with certifiable units following shortly after. The company said this timeline allows for thorough testing and refinement, ensuring the system meets the reliability and performance required for critical military applications.

  • GMV to upgrade Galileo’s European GNSS Service Centre

    GMV to upgrade Galileo’s European GNSS Service Centre

    The European Union Agency for the Space Programme (EUSPA) has awarded GMV a six-year framework contract to upgrade the European GNSS Service Centre (E-GSC) infrastructure. The contract is valued at €35 million ($39 million).

    The E-GSC is critical to the European Union satellite navigation program’s infrastructure. Its primary mission is to provide a unified interface for users of the Galileo and EGNOS systems, offer supporting services, and contribute to delivering new Galileo services. The E-GSC’s various functions include distributing data from the European Union navigation satellite services to the user community and supporting the growth of the global Galileo applications market.

    Originally designed to be part of the European GNSS infrastructure and to provide a unified interface between the Galileo system and its users, the E-GSC has expanded its role over the years to become a key component in delivering services enabled by the European Union Space Programme.

    The new framework contract aims to advance the E-GSC’s capabilities, enabling it to take on increased responsibilities. This includes creating new services for users, enhancing their experience, integrating service delivery aspects of Galileo and EGNOS, and supporting the development of additional services.

    GMV is leading a consortium that features Indra as the main industrial partner, along with prominent companies such as Spaceopal, ESSP, Alten, the Universitat Politècnica de Catalunya (UPC) and the Universidad Autónoma de Barcelona (UAB).

    Under the supervision of EUSPA as Contracting Authority, GMV will oversee project management and IT infrastructure development through all stages, including definition, implementation, validation and integration into the Galileo ground segment. GMV will also develop the software components necessary for delivering new data and signal authentication services for Galileo satellites.

  • UK MOD investigating deployable eLoran

    UK MOD investigating deployable eLoran

    The United Kingdom’s Ministry of Defence (MOD) is focusing its alternative positioning, navigation and timing (Alt PNT) project on deployable eLoran. This comes after industry days for Alt PNT in March and June 2024.

    The announcement came in a Request for Information (RFI) on Sept. 20. It specifies that a contract will be let for the development of a deployable eLoran network. As part of that contract, the MOD also wants to develop:

    • A modelling capability, which will allow for theoretical analysis of capabilities and informing the concept of employment.
    • An assured capability within the Loran Data Channel
    • Information and demonstration of the resulting capability to stakeholders

    UK PNT Policy Framework

    Last year, the UK government announced a ten-point “policy framework” for advancing the nation’s PNT resilience. One of the ten points is:

    “Develop a proposal for a resilient, terrestrial, and sovereign Enhanced Long-Range Navigation (eLORAN) system to provide backup position and navigation.”

    Most have seen this as a provision for a fixed domestic system for use by critical infrastructure and applications. The UK already has an on-air single eLoran transmitter that provides a timing signal. An announcement about establishing two or more additional transmitters to provide PNT services for the British Isles and their adjacent waters has been anticipated.

    The policy framework also includes:

    “Develop a proposal for ‘MOD Time’ creating deeper resilience through a system of last resort and use NTC-provided timing to support MOD.” [NTC stands for National Timing Centre.]

    It is not immediately clear how this RFI from the MOD fits these two provisions, if at all, or is entirely separate.

    1970s Deployable Loran

    Deployable Loran, or Loran-D was first developed for the U.S. Air Force in the 1970’s. An oral history recounts that a system was deployed early in the 70’s by the 6514th Test Squadron at the Utah Test and Training Range (UTTR), a component of  Hill Air Force Base.  It was built by Megapulse, employed a Hewlett Packard  beam clock and 150 ft antennas, and was used for testing unmanned aircraft. There are also indications elsewhere that the Air Force used it for precision bombing.

    Specifications for Loran-D are documented in a 1972 U.S. Coast Guard technical manual available on a U.S. Department of Defense website.

    Industry sources say that this earlier work provides a solid foundation for developing future deployable eLoran systems.

    UK MOD Requirements

    The RFI is fairly specific about the questions it wants answered. These requirements look nearly ready to be transformed into a Request for Proposal and contract language. They include:

    • The demonstrator system shall include a minimum of 3 transmitters to enable a suitable receiver to live demonstrate position and time determination from the system.
    • Across the coverage area, the system shall transmit a signal that allows receivers to achieve position and timing accuracy in line with the needs of defense platforms (which have not yet been specified).
    • The system shall be able to operate with and without GNSS access.
    • The system shall be able to operate both with and without access to eLoran signals from eLoran transmitters outside the deployable system’s group.
    • The system shall be capable of maintaining performance & accuracy for prolonged periods, including without access to eLoran and GNSS signals.
    • The system shall be able to be contained and transported in an ISO container.
    • The system shall be able to be assembled, initialized and disassembled by as small a team as possible.

    Respondents must submit by the 18th of October to be considered.

    The RFI can be downloaded from the MOD website here. Note: Two RFIs are posted on the site. 20240920_Alt PNT_ RFI_1.pdf has the correct submission date.

  • GMV to oversee GOVSATCOM hub for EU satellite communications initiative

    GMV to oversee GOVSATCOM hub for EU satellite communications initiative

    Photo: GMV
    Photo: GMV

    The European Union Agency for the Space Programme (EUSPA) has awarded a contract to a consortium led by GMV to design, develop and deploy the communications hub for the Governmental Satellite Communications (GOVSATCOM) programme. This contract, valued at up to €107 million ($119 million), is a critical component of the European Union (EU) satellite communications initiative.

    GOVSATCOM is one of the five main components of the EU Space Programme, alongside Copernicus, Galileo, EGNOS and Space Situational Awareness. Its primary objective is to provide secure and cost-efficient satellite communication services to authorized governmental users in EU Member States.

    The program aims to support various scenarios, including crisis management, border and maritime surveillance, critical infrastructure management and security operations in polar regions.

    The communications hub is a critical element of the GOVSATCOM architecture. Its main functions include:

    • Ensuring optimal delivery of satellite communication services
    • Meeting the demand for operational services from EU Member State users
    • Planning for predefined medium-term communication needs
    • Handling dynamic and urgent requests from unforeseen scenarios
    • Operating under strict security and resilience requirements

    The hub will manage satellite communication resources from EU Member States and services provided by the EU’s future multi-orbital secure communications constellation, IRIS2.

    The consortium led by GMV includes Indra and Hisdesat. The contract was awarded following a competitive bidding process involving pre-selection consortia and execution of parallel contracts for preliminary design and capability demonstrations.

  • GNSS spoofing threatens airline safety, alarming pilots and aviation officials

    GNSS spoofing threatens airline safety, alarming pilots and aviation officials

    Photo: Oundum / iStock / Getty Images Plus / Getty Images
    Photo: Oundum / iStock / Getty Images Plus / Getty Images

    The increasing prevalence of GNSS spoofing in commercial aviation poses significant safety concerns and highlights the need for robust alternative positioning, navigation and timing (A-PNT) sources. This form of electronic warfare, which uses fake signals to confuse aircraft navigation and safety systems, has become a growing issue for civilian flights worldwide.

    Pilots told The Wall Street Journal that spoofing incidents have risen in recent months. According to analyses from SkAI Data Services and the Zurich University of Applied Sciences, the number of affected flights per day increased from a few dozen in February to more than 1,100 in August 2024.

    The issue of spoofing has expanded beyond active conflict zones near Ukraine and the Middle East, and now affects hundreds of civilian pilots daily on a global scale. The modern cockpit’s heavy reliance on GPS technology means that falsified data can have far-reaching consequences, breaching multiple aircraft systems and causing disruptions that may last anywhere from a few minutes to an entire flight.

    According to anonymized reports shared with government agencies and industry groups, pilots have experienced many alarming incidents, including sudden clock resets, false terrain warnings and unexpected flight path deviations. This surge in GNSS spoofing attacks highlights the vulnerability of critical navigation systems and raises significant concerns about aviation safety in an increasingly complex environment.

    All jammed up
    The Wall Street Journal reported that in August 2024, a United Airlines flight from New Delhi to the New York area encountered a GPS spoofing incident that affected its navigation systems for the duration of the flight.

    Initially, the flight seemed to adhere to the standard GPS route across Asia, mirroring the path taken by previous flights heading to Newark Liberty International Airport. The spoofing attack, originating in the Black Sea region south of Ukraine, caused the aircraft’s GPS coordinates to deviate progressively from its actual position throughout the remainder of the flight.

    Even after the plane had left the affected area, its reported GPS location continued to show erratic behavior, occasionally making sudden jumps. This suggested that the navigation equipment was struggling to recalibrate accurately. While alternative navigation systems ensured the flight’s safe completion of its intended route, the compromised GPS data indicated that it had terminated in the Atlantic Ocean. In reality, the aircraft landed safely at its scheduled destination in Newark.

    Keeping operations safe
    Aviation safety officials said spoofing has disrupted some flights but has not posed major safety risks. Pilots are trained to use A-PNT systems as backups. However, managing false GNSS signals and alerts risks dividing the operator’s attention if a more severe problem arises.

    “If we lose an airplane because of workload issues because of these problems we’re encountering, compounded with an emergency, that is going to be a horrendous event,” said Ken Alexander, the Federal Aviation Administration’s chief scientist for satellite navigation, during a pilot union forum in Washington, D.C.

    Airlines are collaborating with aircraft manufacturers, parts suppliers, and aviation safety authorities to devise immediate solutions and long-term strategies. For example, the International Air Transport Association (IATA) and the European Union Aviation Safety Agency (EASA) are openly discussing these challenges and holding workshops to share best practices. Safety bulletins have also been issued for operations where spoofing and jamming are known to have occurred.

    Industry insiders told The Wall Street Journal that the development of new equipment standards to enhance civilian aircraft resilience against spoofing attacks is not expected to be finalized until 2025.

    Navigating issues across sectors
    According to anonymized reports collected by OpsGroup, an aviation safety organization that includes pilots, dispatchers and other airline staff, various attacks have caused navigation issues across multiple sectors.

    GNSS spoofing has disrupted operations in Europe but has not endangered flights, said Florian Guillermet, executive director of the European Union Aviation Safety Agency. Pilots had to divert to airports they did not intend to land at, and earlier this year, an airline temporarily halted operations at an Estonian airport that was not equipped with ground-based navigation as a backup for GNSS.

    Boeing said manufacturers, carriers and regulators globally are contributing GPS expertise for solutions to ensure safety. Boeing and Airbus are working with airlines to help develop procedures to assist pilots, the companies said.

    United and American said their pilots are equipped with several ways to navigate with precision, even with GPS interference. American said it has not experienced disruptions or significant safety concerns from GPS interference.

    Insights from industry experts 
    During the 64th Civil GPS Service Interface Committee Meeting — hosted at ION GNSS+ 2024 from Sept. 16-17 — The presentation “Complementing GNSS for Resilient Performance Based Navigation” by  Okuary Osechas Ph.D., and Gary A. McGraw, Ph.D., addressed the critical role of complementary positioning, navigation and timing (CPNT) technologies in aviation, particularly in light of increasing threats to GNSS.

    The presentation highlights the impact of radio frequency interference (RFI) on aviation, including jamming and spoofing.  These pose significant risks to aviation safety by reducing operational margins. The prevalence of these threats is increasing, necessitating alternative navigation solutions.

    Performance-based navigation (PBN) is essential for modern aviation, enhancing efficiency and flexibility. However, it relies heavily on GNSS, making it vulnerable to disruptions, again highlighting the need for CPNT services.

    Integrating CPNT sources ensures resilient navigation capabilities. This includes leveraging legacy navigation aids and modernized terrestrial systems. Various complementary technologies such as eDME, eLORAN, LDACS-NAV and LEO SATNAV are being assessed for their operational effectiveness, compatibility and potential to support aviation needs.

    The researchers recommend the following to address these challenges:

    Near-term solutions: Implementing eDME for backward compatibility.
    Medium-term strategies: Utilizing eLORAN for wide-area time distribution.
    Long-term goals: Developing LDACS-NAV to enhance spectrum efficiency and standardization.
    Collaborative efforts: The presentation calls for international cooperation in research and development to advance standards and infrastructure investments in complementary PNT technologies.