Global Navigation Satellite Systems Engineering, Policy, and Design
NextNav announced that it has successfully demonstrated the timing precision and resilience of its terrestrial position, navigation, and timing (PNT) system, TerraPoiNT, in a recent evaluation by the Science & Technology Directorate (S&T) of the Department of Homeland Security (DHS).
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 Department of Homeland Security (DHS) Science and Technology Directorate has published the Positioning, Navigation, and Timing (PNT) Integrity Library and Epsilon Algorithm Suite to protect against GNSS spoofing. These resources advance the design of PNT systems and increase resilience of critical infrastructure to PNT disruptions.
By Inside GNSS
By Logan Scott
The U.S. Department of Transportation’s (DoT’s) “Complementary PNT and GPS Backup Technologies Demonstration Report” released this January has some excellent data on the relative performances of various systems in timing and positioning.
By Inside GNSS
The Department of Transportation (DOT) submitted its “National Timing Resilience and Security Act: Roadmap to Implementation” report to Congress in mid-January. Following a competitive application process, demonstrations and review of 11 candidate technologies to back up GPS capabilities, the DOT concluded that “none of the systems can universally backup the positioning and navigations capabilities provided byGPS and its augmentations.” However, “all vendors demonstrated some PNT performance of value, but only one vendor, NextNav, demonstrated in all applicable use case scenarios.”
By Inside GNSS
Power-packed Autonomous Week, September 9–11, swings into action with an awesome Day One, Wednesday, September 9 session on the use of drones in Intelligence, Surveillance and Reconnaissance (ISR).
By Inside GNSS
The U.S. Department of Defense awarded a $1.7 million contract to Orolia Defense and Security for multiple BroadSim advanced GPS simulator systems for testing facilities and field test assets.
By Inside GNSS
The chairman of the Federal Communications Commission (FCC) told two U.S. Senators in January that his agency could not complete a decision on Ligado Network’s license modification by the end of 2019 because of a late-in-the-year response from a key federal agency.
By Dee Ann Divis
The grapevine was abuzz on Halloween with chatter that the Federal Communications Commission (FCC) might soon act on a long-pending request from Ligado Networks to use spectrum near the GPS frequencies to support terrestrial communications.
By Dee Ann Divis
A House resolution now up for consideration details the way GPS is used and its impact on the economy.
By Dee Ann Divis
In a response to an inquiry by House Transportation and Infrastructure Chairman Peter DeFazio, the U.S. Department of Transportation (DOT) provided an outline of its process to implement a terrestrial timing system to complement and backup GPS signals.
By Dana A. Goward
The Department of Homeland Security (DHS) has designated positioning, navigation, and timing services (PNT) a “National Critical Function.” That is PNT is now officially a capability so vital to the United States that its “disruption, corruption, or dysfunction would have a debilitating effect on security, national economic security, national public health or safety.”
By Dee Ann Divis
On March 5, the 50th Space Wing Public Affairs office published an article discussing the GPS Week Number Rollover. While users should be aware of this rollover coming in April, there are plenty of resources available to answer questions and to report any potential issues.
By Inside GNSS
Congressman John Garamendi, D-California, is the new chairman of the House Armed Services Readiness Subcommittee, which oversees one-third of the Department of Defense’s budget — the largest such responsibility of any subcommittee on the Armed Services Committee.
By Dee Ann Divis
The Alliance for Telecommunications Industry Standards (ATIS) sent a letter to multiple government officials at the end of last month asking them to “…mitigate the impacts of GPS vulnerability to the public.”
By Inside GNSS
