Global Navigation Satellite Systems Engineering, Policy, and Design
Two Galileo satellites launched in 2014 by a Soyuz rocket into erroneous orbits, which had been briefly set healthy late last year, have now been removed from service.
By Inside GNSS
The upcoming Association of the United States Army (AUSA) Global Force Next 2021 virtual event features two sessions that will be of interest to readers of Inside GNSS and Inside Unmanned Systems, focusing on alternative PNT on the battlefield and robotic combat vehicles.
By Inside GNSS
The Tronics AXO315, a miniature high performance 1-axis closed-loop MEMS accelerometer from TDK Corporation, has a 24-bit digital SPI interface and SMD package that reaches quartz sensors performances and eases integration.
By Inside GNSS
Jackson Labs Technologies, Inc. announced availability of the STL-2600 Satellite Timing and Location (STL) receiver designed in partnership with Satelles, Inc., the service provider of STL. This commercial receiver provides a completely GNSS-independent, low-cost capability to generate UTC nanosecond timing and meters-accurate positioning anywhere in the world
By Inside GNSS
The Institute of Navigation recognized a team of NASA engineers with the Samuel M. Burka award. The award recognized a publication related to NASA’s GPS Antenna Characterization Experiment (GPS ACE).
By Inside GNSS
The European GNSS Agency (GSA) selected Eutelsat Communications for the development, integration and operation of its next-generation European Geostationary Navigation Overlay Service (EGNOS) GEO-4 service.
By Inside GNSS
Honeywell has successfully flight-tested new technologies designed to enable alternative navigation offerings, including its Embedded GPS Inertial Navigation System (EGI) supporting M-code
By Inside GNSS
The National Aeronautics and Space Administration in partnership with the Italian Space Agency will position the moon starting in 2023. The two agencies plan to land the Lunar GNSS Receiver Experiment (LuGRE) on the Moon’s Mare Crisium basin. There, LuGRE is expected to obtain the first GNSS fix on the lunar surface.
By Inside GNSS
The European Space Agency officially announced testing of Galileo’s Open Service Navigation Message Authentication (OSNMA) in its signal-in-space, allowing the first OSNMA-protected position fix to be successfully computed. This is the first-ever transmission of authentication features in open signals of a GNSS.
By Inside GNSS
The Air Force Life Cycle Management Center (AFLCMC) recently awarded Integrated Solutions for Systems (IS4S) a $95M Phase 2 contract for the Resilient-Embedded GPS/Inertial Navigation System (R-EGI) development and prototype program.
By Inside GNSS
A new approach to facilitate fast and/or reliable reception and decoding of the navigation message in harsh radio propagation conditions derives from digital communications. Link-layer coding (LLC) techniques improve times-to-first-fix (TTFFs) over legacy carousel transmissions and achieve near-optimal performance with a limited complexity increase.
Dr. Charles R. Cahn, an important early and continuing contributor to GPS signal and waveform design, passed away in January 2021. His accomplishments spanned a lifetime of contributions to GPS signal and receiver developments.
By Inside GNSS
Innovative features of cellular fifth-generation (5G) signals enable the wireless system to play a major role in autonomous technologies. Test results of a ground vehicle navigating with signals from five 5G base stations (gNBs) over a trajectory of 773 m traversed in 110 seconds show a position root mean-squared error of 4.1 m.
