Global Navigation Satellite Systems Engineering, Policy, and Design
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
The value of the GPS SPS PS goes far beyond the specific parameters that it contains. It has a great deal of information regarding how GPS operates and ideally should be read in full (including the appendices) by everyone who works with GPS at the measurement level.
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 Navigation Conference and the Royal Institute of Navigation’s (RIN’s) International Navigation Conference are one and the same in 2021. They convene jointly and virtually as Navigation 2021, from November 15 to 18.
By Inside GNSS
u-blox announced the ALEX-R5, a miniature cellular module that integrates low-power wide-area (LPWA) connectivity and GNSS technology into an ultra-small system-in-package (SiP) form factor.
By Inside GNSS
Alternative PNT from low-Earth orbit (LEO) satellites is being developed or proposed by various entities. Satelles delivers a fully operational Satellite Time and Location (STL) service to back up or augment GNSS, strengthening the resilience of critical infrastructure. This article details STL’s timing synchronization performance with different types of user equipment.
Honeywell announced that recent findings from its research labs show that its newly developed inertial sensors can deliver greater than an order of magnitude improvement in accuracy over its current tactical-grade product, the HG1930 inertial measurement unit (IMU).
By Inside GNSS
STMicroelectronics announced that its new BPF8089-01SC6 plug-and-play RF front-end for GNSS receivers simplifies design and saves real estate by integrating the impedance-matching and electrostatic-discharge (ESD) protection circuitry typically implemented using discrete components.
By Inside GNSS
The Department of Transportation (DOT) submitted its “National Timing Resilience and Security Act: Roadmap to Implementation” report to Congress in mid-January. Following a competitive application process, demonstrations and review of 11 candidate technologies to back up GPS capabilities, the DOT concluded that “none of the systems can universally backup the positioning and navigations capabilities provided byGPS and its augmentations.” However, “all vendors demonstrated some PNT performance of value, but only one vendor, NextNav, demonstrated in all applicable use case scenarios.”
By Inside GNSS
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
