Global Navigation Satellite Systems Engineering, Policy, and Design
A: Unfortunately, uninterrupted use of GNSS navigation cannot be assured due to GNSS signal susceptibility to various disruptions. All GNSS systems rely on the ability to receive weak signals from thousands of kilometers away in space, making them vulnerable to Radio Frequency Interference (RFI).
By Inside GNSS
Guest contributors Darioosh Naderi and Mark Marshall of Silicon Sensing look at how far the technology has come and why it’s poised to disrupt the market.
By Andrey Soloviev
In September, the U.S. Department of Transportation (DOT) issued a Request for Information (RFI) to seek industry input on Complementary Positioning, Navigation, and Timing (CPNT) technologies.
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
For years, the U.S. Department of Transportation (DOT) has been exploring the technologies and systems necessary to provide positioning, navigation, and timing (PNT) services to complement the Global Positioning System (GPS) so that these critical services remain available even when GPS signals are disrupted. In the past few months, the department has ramped up these Complementary PNT (CPNT) efforts, from its issuance of a CPNT Action Plan in September to a related Request for Information (RFI) seeking industry input on CPNT technologies. What are these efforts, how are they going and why the sense of urgency now?
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)![IonoGuard PR Image[32]](https://insidegnss.com/wp-content/uploads/2023/10/IonoGuard-PR-Image32-150x150.jpg)
WESTMINSTER, Colo., Oct. 10, 2023 — Trimble (NASDAQ: TRMB) introduced today Trimble IonoGuard™, a next-generation technology designed to mitigate ionospheric disruptions in positioning and navigation by minimizing performance impacts caused by scintillation or signal noise.
By Inside GNSS
GBAS corrections are typically only used for precision approaches of large aircraft. This study tests using GBAS corrections and integrity parameters for UAVs.
By Inside GNSS
A look at NTCM-G, a new Ionospheric model fully compatible with the Galileo Open Service.
By Inside GNSS
The recent spotlighting of alternative positioning, navigation and timing technologies by weighty bodies such as the European Commission and the European Space Agency is causing more than a stir among the concerned communities, with both public and private interests now readying themselves to move beyond conventional GNSS for critical applications.
By Peter Gutierrez
In the past decade, there has been a sharp increase in GNSS outages due to deliberate GNSS jamming. Receivers in LEO are uniquely situated to detect, classify and geolocate terrestrial GNSS jammers. This article explores two-step and direct geolocation of terrestrial GNSS jammers from LEO.
By Inside GNSS
This research analyzes the wide-area 2022 Texas GPS jamming incident using data from airborne receivers through Automatic Dependent Surveillance – Broadcast (ADS-B) and ground receivers at Continuous Operating Reference Stations (CORS).
By Inside GNSS
The new blockchain-based, decentralized CORS reference network provides low-cost access to triple-frequency full-constellation correction signals for centimeter accuracy, while also allowing users to earn financial rewards for contributing qualified CORS data back to GEODNET.
By Renee Knight
The latest safety award for Rivian is an Insurance Institute for Highway Safety for the R1S as a Top Safety Pick+ for 2023. It accomplishes this and other safety advances with its Driver+ ADAS (advanced driving assistance system), which integrates a set of sensors along with driver attention, GNSS, and IMU modules. At AutoSens Detroit 2023, Abdullah Zaidi, Engineering Lead and Senior Manager at Rivian, presented his take on the state and near future of ADAS sensors including the benefits of adding lidar and the importance of better localization sensors for Level 3 systems.
By Kevin Jost
Santa Clara, CA-based startup Anello Photonics has announced a GNSS INS module that it says is the world’s smallest optical gyro inertial navigation system for GPS-denied navigation and localization. It is powered by the company’s optical gyroscope technology and AI-based sensor fusion engine, the combination engineered to deliver high-accuracy positioning and orientation for applications in the agriculture, construction, robotics, and autonomous vehicle space.
By Kevin Jost
