Global Navigation Satellite Systems Engineering, Policy, and Design
SAM PULLEN, Stanford University
A: Since at least 1997, the Global Positioning System (GPS) Control Segment (CS) has issued what are known as “Notice Advisor(ies) to NAVSTAR Users” or “NANU(s).”
By Inside GNSS
Multi-antenna carrier-phase differential GNSS (CDGNSS)-based pose (position and orientation) estimation aided by monocular visual measurements and a smartphone-grade inertial sensor form the core of a system designed for micro aerial vehicles. It can be applied generally for low-cost, lightweight, high-accuracy, geo-referenced pose estimation.
The year 2020 was definitely one for the history books. The global pandemic forever changed life as we know it, and in its midst, our GPS development and production teams launched us deep into a new era of positioning, navigation, and timing (PNT) capabilities.
By Inside GNSS
The Defense Advanced Research Projects Agency (DARPA) has awarded Northrop Grumman a $13.3 million contract Phase 2 of the Blackjack program to “advance its Position, Navigation, and Timing (PNT) payload through emulation and Critical Design Review, and build PNT payload units destined for space flight.”
By Inside GNSS
One hundred days into the administration and the federal civil service crew has set the stage for the Biden team on the tough Positioning, Navigation, and Timing (PNT) issues they face: the Ligado debacle, interference concerns and a troubling lack of system redundancy or resiliency.
uAvionix has added a new low size, weight and power (SWaP) transponder to its line-up of unmanned aircraft systems (UAS) communications, navigation, and surveillance (CNS) solutions. To make the device, the company took the unusual step, for a specialty OEM manufacturer, of designing and building its own GPS receiver.
By Inside GNSS
GTX Corp, a provider of location-based wearables human and asset tracking systems, is in the final stages of bringing to market its GPS SmartSoles, designed to address Alzheimer’s and autism challenges.
By Inside GNSS
Microsoft has added identity and access management capabilities employing GPS among other factors to its Azure Active Directory, a cloud identity solution, to counter sophisticated hacking techniques. Two-factor authentication is no longer sufficient to defend against malicious entry. The GPS-based named locations and filters look at a range of signals for authorized user access.
By Inside GNSS
A “non-recurring design validation” of a previously flown SpaceX Falcon 9 booster will be completed by the end of this month, in time to carry the next GPSIII satellite aloft, according to U.S. Space Force executive officer.
By Inside GNSS
The Trimble GuidEx Machine Guidance System uses an integrated GNSS and inertial navigation system (INS) to compute a virtual reference point and precise heading, pitch and roll. This provides quick and efficient navigation along route corridors or to specific target areas,
By Inside GNSS
by Logan Scott
There has been much discussion of the need for resilient PNT over the past few years, as dependencies have grown and an evolving threat matrix has become more active. As a nation, we need a measured and cost-effective response commensurate with the level of threats and the possible consequences.
By Inside GNSS
The United States Space Force’s Space and Missile Systems Center (SMC) awarded a $228 million contract to Raytheon Intelligence and Space for the GPS Next-Generation Operational Control System (OCX) Follow-On (OCX 3F).
By Inside GNSS
Ford of Europe announced a new ways of making driving in the dark easier and more comfortable: have your headlights swivel to follow curves in the road ahead, guided by GPS and a high-definition digital map in the vehicle.
By Inside GNSS
