Global Navigation Satellite Systems Engineering, Policy, and Design
The parachute deployed during the descent of the Mars Perseverance rover carried a special message for anyone who happened to be looking up from the Red Planet’s surface on February 18, 2021.
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 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
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.
Development of military Galileo user equipment (MGUE, a new variant) got underway on February 8 with the kick-0ff meeting in Brussels of the Galileo for EU Defence (GEODE) project.
By Inside GNSS
An international autonomous racing series with electric-powered vehicles will use Trimble’s Applanix POS LVX GNSS-inertial systems in all of its next-generation autonomous race cars in 2021, as part of an extensive technology and marketing partnership.
By Inside GNSS
Inertially-aided extended coherent integration makes a GNSS receiver more sensitive to directly received signals than to reflected signals whenever the receiver is moving. 3D-mapping-aided GNSS uses predictions of which signals are NLOS to enhance the positioning algorithms. Both techniques can improve positioning accuracy in dense urban areas by more than a factor of two. This article investigates the benefits of combining them.
By Inside GNSS
By Logan Scott
The U.S. Department of Transportation’s (DoT’s) “Complementary PNT and GPS Backup Technologies Demonstration Report” released this January has some excellent data on the relative performances of various systems in timing and positioning.
By Inside GNSS
On March 3 a Galileo Performance Workshop, open to anyone interested in GNSS and led by the European GNSS Agency (GSA), will offer an in-depth analysis of the performance of the Galileo constellation and signals and how they are evaluated for users.
By Inside GNSS
A monitoring system developed through a European Space Agency (ESA)-backed project detects interference with satellite navigation signals in use at strategic or safety-critical sites.
By Inside GNSS
The European Commission awarded two contracts for 12 satellites — 6 satellites each — for a total of EUR €1.47 billion to ThalesAleniaSpace (Italy) and Airbus Defence & Space (Germany) following an “open competition.”
By Inside GNSS
As 2020 ended, the Ligado project stood still. The FCC proceedings in the case had stagnated, while Congressional action, funds and filings flowed.
TeleOrbit GmbH of Nuremberg, Germany, announced that it has implemented testing capability for Galileo’s Open Service Navigation Message Authentication (OSNMA) aboard the company’s GNSS Receiver with Open Software Interface (GOOSE).
By Inside GNSS
