Global Navigation Satellite Systems Engineering, Policy, and Design
Inside GNSS’s resident inertial expert examines coasting over GNSS outages, navigation in challenged environments and interference mitigation in a sensor-fusion environment.
By Andrey Soloviev
Speaking at a special EGNOS Workshop, Fiametta Diani, head of marketing at the EU Agency for the Space Program (EUSPA), described where Europe’s GNSS augmentation system is going, in the air, on land and at sea.
By Peter Gutierrez
Difficult GNSS environments and adverse weather conditions require a fusion of many sensors to maintain lane-level accuracy for autonomous platforms, without incurring high costs that would inhibit widespread adoption. Radars are an attractive option in a multi-sensor integration scheme due to being robust to adverse weather and insensitive to lighting variations.
By Inside GNSS
The 2022 edition of the Munich Satellite Navigation Summit drew speakers (virtually) from around the world, providing a broad overview of the latest developments in the field of GNSS. A highlight was the out-of-this-world session on PNT for lunar navigation, featuring long-time collaborators ESA and NASA.
By Peter Gutierrez
The following is a partial transcript of a talk given to the National PNT Advisory Board Executive Committee (PNTAB ExCom) on December 9, 2021. It connects GNSS signal authentication, by both Galileo’s OSNMA and the proposed GPS Chimera signal, with developing PNT capabilities in 5G telecom technology, and further, with software-defined radio (SDR) capabilities aboard some GNSS satellites that could place GPS in the second tier.
By Inside GNSS
Two recent government reports have labelled Satelles’ Satellite Time and Location (STL) as a reliable source of resilient timing for critical infrastructure.
By Inside GNSS
With a Low-cost Single-frequency Multi-GNSS Receiver
Although precise point positioning (PPP) has been largely limited to applications in open environments using high-end GNSS receivers, recent test results demonstrate that a new PPP system with a mass-market receiver can significantly improve positioning accuracy in urban environments.
By Inside GNSS
Cryptographic techniques can optimize the trade-off between authentication integrity (minimizing the probability of authenticating a modified message), ease of modification of existing signals (for operator and user acceptance), and minimal impact on existing users who will form the vast majority of the GNSS user population for some time to come.
By Sam Pullen
A deadlock over 5G implementation, and the potential hazards the technology would create for air traffic safety, has been at least temporarily resolved. Not all questions have been answered nor problems eliminated, however. And while radio altimeters do not use GPS or GNSS technology, they are definitely PNT devices, and this situation could create precedents for ongoing and future conflicts between telecom and PNT use of the finite radio spectrum.
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
Linx Technologies recently expanded its GNSS portfolio, adding seven new GNSS active ceramic patch antennas. The antennas support GPS, Galileo, GLONASS, Beidou, NavIC, and QZSS systems in the L1/E1/B1, L2/E5/B2B and L5/E5/B2A bands.
By Inside GNSS
The system designers from the Extreme Attitude Team discuss data from some of the many maneuvers conducted by the high-speed acrobatic airplane.
By Alan Cameron
Two Hexagon I NovAtel employees and a reporter sacrificed their bodies in the name of science by riding in the jump seat of an Aero Albatros fighter training jet during the L-39 demonstrations. Here, we get the perspectives of those brave souls and the mastermind behind the unique human aspect of this experiment.
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
Ensure safe operations through reliable, robust and continuous positioning with GNSS+INS integration
By Inside GNSS
