Global Navigation Satellite Systems Engineering, Policy, and Design
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
The Air Force Research Laboratory’s Air Force Office of Scientific Research awarded 17 quantum information research science grants in late 2020, two of them with a focus on the use of quantum computing to overcome challenges in GPS-denied navigation.
By Inside GNSS
A software development kit for vertical positioning within multistory buildings enhances first responder safety, makes decision-making more efficient, and improves situational awareness.
By Inside GNSS
In an Android developers’ blog post titled “Improving urban GPS accuracy for your app,” satnav expert and a principal engineer at Google Frank van Diggelen reports that the company has addressed “the last great unsolved GPS problem”: the wrong-side-of-the-street position error.
By Inside GNSS
On Monday, December 14, the EU’s Galileo program posted an official notice advising users that Galileo service was degraded on all satellites until further notice. Nominal service was then resumed about six hours later.
By Peter Gutierrez
For decades, artificial intelligence and machine learning have advanced at a rapid pace. Today, there are many ways artificial intelligence and machine learning are used behind the scenes to impact our everyday lives, such as social media, shopping recommendations, email spam detection, speech recognition, self-driving cars, UAVs, and so on.
By Inside GNSS
The advent of large LEO constellations is a game-changer for navigation. A key feature of these constellations is their potential to allow simultaneous measurement of Doppler shifts from a large number of satellites.
A framework to seamlessly navigate people from urban road traffic to indoor foot traffic uses the phone’s inertial measurement unit, GNSS chipset and camera, aided by an extended Kalman filter and ORB-SLAM. Tests show the framework performing well in both phases, guiding the phone’s user, behind the wheel on a city street, to a spot in an underground parking garage and walking to a meeting inside a large building.
The latest release from Hexagon promises precise point positioning (PPP) convergence in less than a minute for centimeter-level accuracy on land, air and marine applications around the world.
By Inside GNSS
ANavS showcased its Multi-Sensor RTK Positioning Module with its modular and flexibly configurable sensor fusion software at the recent International VDI Conference Autonomous Trucks virtual conference.
By Inside GNSS
HERE, a navigation platform with its map data services found in 150 million vehicles worldwide, and what3words, an addressing system which has divided the world into a grid of millions of 3-meter squares, have partnered to offer precision in-car navigation.
By Inside GNSS
A new integrated GNSS platform designed for ultra-low power high-performance positioning applications targets a wide range of applications requiring an extremely compact format and with very long battery life, such as sport watches or asset and livestock trackers.
By Inside GNSS
