Global Navigation Satellite Systems Engineering, Policy, and Design
This year’s Munich Satellite Navigation Summit featured pointed debates on high accuracy, integrity and authentication, exploring the trade-off between GNSS performance and security. And, as usual, there were some new products and systems looking to make a splash.
By Peter Gutierrez
The federal government is rumored to be nearing a decision about Ligado Networks’ request to repurpose its satellite frequencies to also support a ground-based telecom network. Those frequencies neighbor the band used by GPS. Testing done both several years ago and more recently has shown such a system could seriously interfere with GPS receivers.
By Dee Ann Divis
An independent technical review ordered by the federal government’s top GPS policy body found that there is sufficient data to assess the risk of using frequencies near the GPS band for a ground-based communications network. Existing test results can also be used to set power limits for other similarly located projects, said a panel of technical specialists. Two tests sponsored by Ligado Networks, however, did not meet minimum criteria for inclusion, the panel said.
By Inside GNSS
Assisting safer autonomous driving, STMicroelectronics recently introduced the world’s first multi-frequency satellite-navigation receiver chipset suitable for safety-critical automotive applications and high accuracy positioning at the decimeter and centimeter-level for precise point positioning (PPP) and real-time kinematic (RTK) applications.
By Inside GNSS
A $2 billion lawsuit with implications for the ongoing spectrum fight between the GPS community and would-be terrestrial telecom provider Ligado Networks has been stayed — set aside through mutual agreement for nine months — according to court documents.
By Inside GNSS
The Army is leaning toward using a funding channel designed for fast deals with high-tech entrepreneurs to rev up its work on assured positioning, navigation and timing (A-PNT).
By Dee Ann Divis
The Institute of Navigation (ION) presented its Annual Awards during the ION International Technical Meeting (ITM) and Precise Time and Time Interval Systems and Applications (PTTI) meeting in Reston, Virginia, January 29 to February 1, 2018.
By Inside GNSS
GPS firms are concerned about a proposal by another L band satellite firm to build more ground terminals as part of a combined satellite-ground communication network.
By Inside GNSS
Another month is slipping away with no sign of the Request for Proposals (RFP) for the multi-billion dollar GPS III contract.
By Inside GNSS
The Air Force is scouring the landscape for its next round of receiver technology now that the first increment of its military receiver development program is moving into a deeper testing phase.
By Dee Ann Divis
Phil Falcone’s Harbinger Capital is seeking $2 billion in damages for "massive fraud" alleging that Apollo Global Management and others sold it on a plan to launch a terrestrial broadband network while concealing test results showing the network would cause crippling GPS interference and be unlikely to be approved. Assertions
By Inside GNSS
An additional delay in release of the GPS III RFP emerged just as federal watchdogs released a new report detailing the challenges Air Fore managers will face in keeping all the components of the modernization program on track.
The long-expected report from the Government Accountability Office looks at the overall effort to update GPS including developing a new ground system, more capable receiver cards for military equipment and new satellites to sustain and improve the constellation.
By Inside GNSS
Senate lawmakers have introduced a bi-partisan bill giving the Department of Transportation (DoT) responsibility for launching a GPS timing backup and a two-year deadline to get it up and running.
By Inside GNSS
