Global Navigation Satellite Systems Engineering, Policy, and Design
The long-running fight between the GPS community and Ligado Networks intensified in the final months of 2019, fueled by a draft regulatory order, a flurry of letters and scrutiny of the sale of a high-profile supplier.
By Dee Ann Divis
For driverless vehicles, current GNSS meter-level positioning accuracy still serves for lane-level detection. However, hazardous misleading information poses a serious, disruptive and critical safety concern.
By Inside GNSS
Microelectromechanical systems (MEMS) play an essential role in automotive electronic control systems, providing measurements for tire pressure monitoring, vehicle stability control, adaptive suspension, rollover protection systems, and navigation systems. While MEMS gyros and accelerometers are suitable for vehicular applications in terms of size and cost, noise properties (large bias and signi cant 1/f noise) create problems, especially in low dynamic conditions or when measurements are integrated from angular rates to angles or from acceleration to velocity and position. GNSS receivers can complement these measurements but the availability and accuracy drops in urban canyons and underground.
By Inside GNSS
By Inside GNSSIn lead position on a sleigh rising from the North Pole to a height of 200 meters — standard cruising altitude for global package delivery — at 2100 hours UTC on December 24 — the youngest will hopefully be asleep by then and there’s plenty of territory to cover before dawn breaks, time’s a-wasting — navigator Rudolph will see between 40 and 45 GNSS satellites glistening in the night sky.
Ivan Revnivykh’s life and experience encompass the far frontiers of his homeland, Russia, from the magnificent landscapes of the country’s Pacific coast to research stations in Antarctica, to the great capital city of Moscow where he lives and works today. To everything he does he brings a sense of excitement and adventure.
By Peter Gutierrez
The third GNSS Raw Measurements Taskforce Workshop will take place on June 26, 2019 at the European Global Navigation Satellite Systems Agency (GSA) Headquarters in Prague. The objective of the workshop is to share the Task Force member`s experience and progress around the use of raw measurements within Android devices.
By Inside GNSS
A two-day training course in GNSS from fundamentals to advanced topics is planned for March 21-22 for United Kingdom industry and SMEs.
By Inside GNSS
u‑blox and Qianxun Spatial Intelligence Inc. are joining forces to deliver high precision positioning solutions to the Chinese market. By coordinating their product offerings, they seek to meet growing demand for increased positioning accuracy for mass market applications.
By Inside GNSS
Nicolas Ramponi is Program Manager at SES Networks, one highly focused business unit of SES, a world-leading satellite operator in Luxembourg.
By Inside GNSS
Matthieu Sihrener has been the technical expert of the NLES (EGNOS uplink stations) at ESSP since 2009.
Specializing in Ground Stations and Radio Navigation Signals processing, he is also in charge of the Signal in Space monitoring in collaboration with the satellite providers.
By Inside GNSS
Michaël Klein is currently in charge of GNSS subsystems validation and tests at Thales Alenia Space.
By Inside GNSS
Arnault Sfeir is currently project manager of GNSS subsystems at Thales Alenia Space.
By Inside GNSS
Pierre Lesage is a GNSS systems engineer at Thales Alenia Space France (TAS-F).
By Inside GNSS