Global Navigation Satellite Systems Engineering, Policy, and Design
Leidos showcased its system for airborne navigation in GPS-denied environments at the recent Association of the United States Army (AUSA) 2020 conference in Washington, D.C., October 11–13.The system, called Assured Data Engine for Positioning and Timing (ADEPT), compares the high-resolution camera view below a plane to a detailed satellite map.
By Inside GNSS
Ambiguity resolution combined with multiple constellations and multiple frequencies proves very effective in reducing Precise Point Positioning convergence time. Such a solution with a 30° mask has a shorter convergence than a float multi-GNSS solution without any obstructions, despite the latter using more satellites.
By Inside GNSS
Collins Aerospace unveiled the second iteration of its Mounted Assured Positioning, Navigation and Timing System (MAPS) for warfighters at the Association of the United States Army (AUSA) 2020 conference
By Inside GNSS
Hexagon introduced a news survey-grade GNSS RTK rover with visual positioning at the InterGeo expo in Berlin. Designed for surveying professionals to measure points which previously could not be measured with a GNSS rover easily and accurately, the Leica GS18 I captures the site in images and measures points from them, either in the field or later in the office.
By Inside GNSS
Fixposition announced its new Vision-RTK positioning sensor, a compact centimeter-accurate solution with high reliability and availability in GNSS-challenged environments, at the Intergeo Digital event and industrial exposition. The sensor’s fusion algorithm deeply integrates satellite, camera and inertial sensors for reliability and availability in diverse and challenging applications.
By Inside GNSS
Septentrio has expanded its GPS/GNSS OEM portfolio its latest high-precision GNSS receiver, the AsteRx-m3 in both base and rover formats. The new AsteRx-m3 family features GPS/GNSS OEM boards optimized for power consumption and ease of integration, with advanced anti-jamming algorithms.
By Inside GNSS
Low-noise MEMS inertial sensor and systems technology coupled with VELOX high-speed processing are integrated with a 72-channel GNSS receiver from Gladiator Technologies. The devices deliver position accuracy within 2 nautical miles per hour during GPS outages.
By Inside GNSS
Collins Aerospace received a program-of-record contract to mature and integrate a positioning, navigation and timing system for the U.S. Army’s for the Army’s increasingly sophisticated manned ground vehicles. The Mounted Assured Position Navigation and Timing System (MAPS) will maintain the integrity of positioning and timing during operations in GPS-contested environments.
By Inside GNSS
Research has focused on methods to analytically determine bounding probability distributions and parameters and identify the conditions under which such bounds are guaranteed to hold. This column summarizes several important examples from this research to highlight the most useful principles and techniques.
By Sam Pullen
As a significant number of people and robotics venture into space, infrastructures providing critical services such as GNSS must be considered on a large extra-terrestrial scale to support these explorations and settlements.
By Inside GNSS
Laboratory tests explore how commercially available receivers respond to meaconing and spoofing, with the goal of developing useful test methodologies and metrics to assess receiver robustness and resilience to real-world spoofing threats.
A new GNSS receiver for mobile consumer products uses only the modernized, wideband signals at L5, with an acquisition engine to acquire the signals directly and a navigation engine employing artificial intelligence techniques to fully exploit all the signals in L5’s 50MHz-wide band.
By Greg Turetzky and Paul McBurney, oneNav
By Inside GNSS
