Global Navigation Satellite Systems Engineering, Policy, and Design
The U.S. Army has put its replacement for the handheld Defense Advanced GPS Receiver (DAGR) under field testing in reconnaissance and fire missions in a variety of threat scenarios, to understand its performance in a realistic operational environment. The Dismounted Assured Positioning, Navigation, and Timing System (DAPS) could enable warfighters to better shoot, move and communicate in a GPS degraded environment.
By Inside GNSS
A robotic cane integrating a color 3D camera, an inertial measurement unit (IMU) and an on-board computer offers indoor navigation assistance to blind and visually impaired users.
By Inside GNSS
Russia’s state space agency Roscosmos will start placing ground stations for its GLONASS navigation satellite system across China, tentatively before the end of the year, announced Roscosmos Deputy Director for International Cooperation General Sergey Saveliev.
By Inside GNSS
The fastest driverless speeds yet achieved will occur during the Indy Autonomous Challenge (IAC) on October 23. The autonomous competition will award a $1.5 million grand prize for the most successful R&D team that programs their driverless, GNSS-, inertial- and multisensor-equipped racecar to clock the fastest fifty-mile distance around the legendary Indianapolis Motor Speedway.
By Inside GNSS
Xona Space Systems announced that completion of a new funding round will support the company’s first orbital mission, scheduled for mid-2022, to demonstrate the capabilities of its Pulsar precision low-Earth orbit (LEO) PNT service, an independent high-performance satellite navigation and timing system designed to meet the needs of intelligent systems.
By Inside GNSS
An enhanced version of BeiDou short message service (SMS) was showcased at the First International Summit on BeiDou Navigation Satellite System (BDS) Applications held in Changsha, central China’s Hunan Province, September 16–17.
By Inside GNSS
Spirent Communications has launched GNSS Foresight, a cloud-based solution that empowers GNSS users with advance knowledge about the strength and reliability of GNSS signals in exact locations within their operational areas. The service will have early application for aviation, unmanned and autonomous platforms, but Spirent VP Jeremy Bennington told Inside GNSS that its potential is far wider.
By Inside GNSS
Hexagon | NovAtel announced that Fendt machines in North America, Europe and the Middle East equipped with Fendt Guide guidance systems powered by Fuse Smart Farming now come with NovAtel’s SMART7 GNSS receiver as the default configuration choice.
By Inside GNSS
This article reviews some of the recent results analyzing the feasibility of carrier-phase based positioning with smartphone data and highlights limitations largely arising due to the poor antenna quality. It shows how they might be overcome by antenna calibration or coupling to the phone’s inertial sensors. The goal is to perform a successful RTK positioning with the smartphone-quality data.
Discussions about spectrum allocation, familiar to GNSS designers and manufacturers on Earth, are now taking place regarding the lunar environment. ITU Radio Regulations constitute an international treaty governing all radio frequency activities. This article shows that GNSS operators in this region must transmit signals in the GNSS S-band rather than in GNSS L-bands.
A new method for multipath rejection employs a multicorrelator-based GNSS receiver with an extended Kalman Filter (EKF) as an iterative solver, replacing the conventional delay locked loop (DLL) code tracking. The technique significantly reduces the positioning error and has low complexity. It can therefore be implemented in a real-time processing environment.
The U.S. Army Research Lab awarded the University of Central Florida a $4.5 million grant to develop a smart, computer vision-based navigation system for when GPS is unavailable or jammed.
By Inside GNSS
The EU Agency for Space Programme (EUSPA) awarded Thales Alenia Space a contract to provide new capabilities to the European Geostationary Navigation Overlay Service (EGNOS) satellite-based augmentation system.
By Inside GNSS
