Global Navigation Satellite Systems Engineering, Policy, and Design
The Air Force Research Laboratory (AFRL) awarded a $49.7 million contract to KBR Inc. for the Stealth & Cognitive Agile Navigation System (SCANS) project, researching and prototyping an alternative position, navigation, and timing (PNT) system for use in GPS-denied environments.
By Inside GNSS
The European Commission (EC), the European Space Agency (ESA) and the European Union Agency for the Space Programme (EUSPA) have set up a Joint Office within the EC’s headquarters in Brussels to help manage and develop Galileo, Europe’s GNSS.
By Inside GNSS
Saab, the Swedish defense and security company, and Maxar recently demonstrated a solution to GPS-denied environments by integrating Maxar’s 3D DATA and Precision 3D Registration (P3DR) technology into the Gripen E, the combat fighter jet
By Inside GNSS
A new data source to help scientists better understand the ionosphere and its potential impact on communications and PNT is now publicly available.
By Inside GNSS
The U.S. Army has put its replacement for the handheld Defense Advanced GPS Receiver (DAGR) under field testing in reconnaissance and fire missions in a variety of threat scenarios, to understand its performance in a realistic operational environment. The Dismounted Assured Positioning, Navigation, and Timing System (DAPS) could enable warfighters to better shoot, move and communicate in a GPS degraded environment.
By Inside GNSS
Spirent Communications and Qascom announced a simulation test solution for the Galileo Open Service Navigation Message Authentication (OSNMA), the security protocol which enables GNSS receivers to verify the authenticity of signals distributed from the Galileo satellite constellation.
By Inside GNSS
Spirent Communications has launched GNSS Foresight, a cloud-based solution that empowers GNSS users with advance knowledge about the strength and reliability of GNSS signals in exact locations within their operational areas. The service will have early application for aviation, unmanned and autonomous platforms, but Spirent VP Jeremy Bennington told Inside GNSS that its potential is far wider.
By Inside GNSS
A new method for multipath rejection employs a multicorrelator-based GNSS receiver with an extended Kalman Filter (EKF) as an iterative solver, replacing the conventional delay locked loop (DLL) code tracking. The technique significantly reduces the positioning error and has low complexity. It can therefore be implemented in a real-time processing environment.
Collins Aerospace announced its Military Underwater Navigation System with M-Code (MUNS-M), a handheld diver navigation system that provides the diver with precise position and includes secure anti-jamming capabilities during deep-sea missions.
By Inside GNSS
Ligado Networks had an early-year win in the form of a Federal Communications Commission denial of the National Telecommunications and Information Administration Stay Petition involving Ligado’s license for a terrestrial service in the mobile satellite services L-band. The company continues to roll toward deployment of a nationwide 5G network. While filings trickle in from the private sector, the feds work quietly behind the scenes on Congressional due-outs. In short, wheels big and small keep churning down the river to 5G.
By Dawn M.K. Zoldi (Colonel, USAF, Ret.)
A 2023 lander in the moon’s Mare Crisium will carry the first GNSS receiver to that planet’s surface: the Navigation Early Investigation on Lunar surface (NEIL) receiver with software-defined radio (SDR) technology. The receiver will spring from agreements between the U.S. National Aeronautics and Space Administration (NASA), the Italian Space Agency (ASI) and the Italian firm Qascom srl.
By Inside GNSS
Galileo satellites 5 and 6 (E18, E14) were declared unusable in February 2021 after reports indicating repeatable daily problems with RTK. This article explores the possible impact of deviant elliptical orbits on the performance of RTK and finds that there is no reason to expect any anomalies caused by high orbit eccentricity per se. Thus there is no reason to declare the satellites unhealthy.
The U.S. Space Force’s Space Systems Command recently declared the eighth GPS III satellite as “Available for Launch.” This marks the third GPS III satellite to be declared available for launch in the past three months.
By Inside GNSS