Global Navigation Satellite Systems Engineering, Policy, and Design
In the maritime sector, work is ongoing towards the identification and development of alternative PNT (positioning, navigation and timing) solutions, that is, solutions that are not wholly dependent on GNSS-based technologies.
By Peter Gutierrez
NAVSYS Corporation has secured a $4.4 million contract from the Air Force Research Laboratory’s (AFRL) Rapid Architecture Prototyping and Integration Development (RAPID) Laboratory. The contract is part of AFRL’s Commercial Alternative Positioning, Navigation, and Timing for RAPID (CAPR) program, aimed at enhancing the Department of Defense’s (DoD) access to robust and resilient PNT services, especially when GPS is unavailable or compromised.
By Inside GNSS
Safran Federal Systems, a provider of advanced NAVWAR and simulation solutions, announced the launch of the BroadSim Duo, its dual-frequency GNSS simulator designed specifically for testing military receivers in an unclassified environment.
By Inside GNSS
VectorNav Technologies, a provider of high-performance, low-SWaP IMU and GNSS-Aided Inertial Navigation Systems, recently participated in the USAF’s NAVFEST 2024 Test Event. The event, hosted by the 746th Test Squadron at Holloman Air Force Base, New Mexico, and held at White Sands Missile Range (WSMR), took place from May 6-17.
By Inside GNSS
Mosaic has introduced the Meridian Mobile Mapping System at Geo Business in London, aiming to enhance geospatial and surveying technologies. This system integrates the Mosaic X camera with an INS/Lidar device from Inertial Labs, offering high-accuracy mapping at a more accessible price point compared to traditional systems.
By Inside GNSS
For applications that require accurate UTC timing, the options are pretty limited. Yes, GPS provides timing, but it has its vulnerabilities. Iridium STL is the only other option with global coverage, but it has its drawbacks, too, as it’s restricted to L1 and can’t be leveraged for every application.
By Renee Knight
Silicon Sensing is to open its first US office, with a dedicated in-country team lead by the new head of sales – Americas, Kevin Swain. This new facility will help ensure the company efficiently supports the growing demand for their rugged, high performance inertial products across North and South America.
By Inside GNSS
Leveraging high-accurate Inter-Satellite Links for communication and ranging among GNSS satellites offers improved and more frequent data dissemination than ground ODTS.
By Inside GNSS
Guest columnist Mark Looney on how enhanced performance has led MEMS IMUs to be key enablers for scalable AV platforms.
By Inside GNSS
VIAVI has launched its altGNSSSM GEO SecureTimeSM services that aim to deliver nanoseconds-accurate UTC timing via L-Band and Ku-Band satellite signals for critical infrastructure including 5G networks, transportation, data centers, smart grid, high-frequency trading, military and first responder communications, and satellite terminals.
By Inside GNSS
A novel approach for GPS M-code pull-in. Signal acquisition and tracking are two essential functions of a satellite navigation (satnav) receiver that allow it to form a position, velocity and time (PVT) solution.
By Inside GNSS
The Grimaldi Satellite Autonomous Berthing (GSAB) project, funded by the European Space Agency’s NAVISP program, has developed a system enabling automatic, high-precision port berthing operations in large (200m) carrier ships. The system provides ships’ captains and crew with an overview of ship conditions in real time in port settings, including detailed information on maneuvering operations to be performed.
By Peter Gutierrez
It has been widely demonstrated that GNSS-based localization technologies are vulnerable to signal jamming and spoofing/replay attacks, where a receiver can be either denied positioning or deceived to compute a forged PVT solution. Today, it is possible to spoof a GNSS receiver to any arbitrary location and time in the world with many incidents being reported in the wild.
By Inside GNSS
