Global Navigation Satellite Systems Engineering, Policy, and Design
Q: Would you prefer to have more signals or more satellites?
A: This is somewhat of a classic GNSS question, but before getting to the answer, let’s seek some clarity about what is being asked. First, by definition, “more” signals or “more” systems must be referenced against some baseline configuration. This is commonly assumed to be a GPS L1 C/A solution, and this assumption is also used herein.
By Inside GNSS
Speakers at the 9th Annual Conference on European Space Policy wasted no time in addressing the somewhat worrying failure of several Galileo onboard clocks, as revealed by European Space Agency Director General Johan-Dietrich Woerner at a press briefing earlier in January in Paris. He made clear at the time that the clock failures, while indeed troubling, had had no effect on the operational integrity of the Galileo system.
By Peter Gutierrez
Figures and ChartsThe GPS community and Virginia-based Ligado are weighing new and upcoming test results as the standoff over interference with satellite navigation services enters its seventh year.
The dispute centers on the company’s now modified proposal to build a terrestrial wireless network supported by frequencies originally allocated for satellites. Though there had been a move some years earlier to augment the satellite services with ground stations the company’s first plan envisioned some 30,000 high-powered ground terminals.
By Dee Ann Divis
Demo Test in Italy on Cagliari – Decimomannu line – February 24, 2017. From left: Josef Doppelbauer (Executive director of ERA – European Union Agency for Rail), Maurizio Gentile (Chief Executive Officer of RFI – Rete Ferroviaria Italiana), Jean-Pierre Loubinoux (Director General of UIC – the worldwide professional association representing the railway sector and promoting rail transport), Carlo des Dorides (Executive director of GSA). & Carnegie Robotics CTO Chris Osterwood (R).jpg)
Swift Navigation CTO Fergus Noble, left, and Carnegie Robotics CTO Chris Osterwood, right. Photo source: Swift Navigation.A partnership between Swift Navigation and Carnegie Robotics announced this week is expected to yield a line of navigation products for autonomous vehicles, outdoor robotics and machine control.
San Francisco-based Swift Navigation is a startup building centimeter-accurate GPS technology designed to power a world of autonomous vehicles, while Carnegie Robotics, located in Pittsburgh, Pennsylvania, provides advanced robotics sensors and platforms for defense, agriculture, mining, infrastructure and energy applications.
By Inside GNSS
Orolia recently announced successful synchronization in multiple indoor locations. Photo source: Oriola.Rochester, New York-based Orolia recently announced (March 22) that in several indoor environments in the field, it has successfully synchronized a Spectracom SecureSync high precision time server with the new Iridium Satelles Satellite Time & Location (STL) time synchronization signal powered by Iridium satellites.
By Inside GNSS
With two federal budgets in play simultaneously, defense spending increases being proposed from multiple directions and a looming government shutdown it’s easy to lose track of where things stand with GPS funding.
By Dee Ann Divis
Photo source: Dee Ann Divis. Ligado, which has been in a standoff with the GPS community over interference issues for more than six years, is developing a new high-precision location (HPL) augmentation system for GPS.
The new HPL service will use real-time kinematic- (RTK-) based solutions for augmentation of high-precision receivers, said Tamara Casey, Ligado’s chief technology officer, during Satellite 2017.
By Inside GNSS
GCX3 GNSS integrated receiver. Photo source: Sokkia.Livermore, California-based Sokkia has introduced the latest addition to its GCX line of GNSS integrated receivers — the GCX3 — featuring advanced constellation tracking, open format software compatibility, and longer range base-to-rover communication.
By Inside GNSS
With expectations including the delivery of better accuracy and improved resilience to EGNOS performance, there’s plenty of excitement surrounding the development of EGNOS V3.
A big step toward this development was taken when the European Global Navigation Satellite Systems Agency (GSA) selected Eutelsat Communications for the development, integration and operation of the next-generation EGNOS payload on a future Eutelsat satellite.
By Inside GNSS
Brussels Great Market Square. Wikimedia Commons photo by Paul IJsendoorn.This year’s joint kick-off event of Europe’s major innovation competitions for space downstream applications — the Copernicus Masters and the European Satellite Navigation Competition (ESNC) — will take place April 5, 2017 in Brussels, Belgium.
By Inside GNSS
Registration is taking place now for this year’s joint kick-off event of Europe’s major innovation competitions for space downstream applications — the Copernicus Masters and the European Satellite Navigation Competition (ESNC) — April 5, 2017 in Brussels, Belgium. The number of places is limited, so click here to secure a spot.
By Inside GNSS
