Global Navigation Satellite Systems Engineering, Policy, and Design
In a recent demonstration, a StarNav receiver yielded 20 cm positioning precision from a cold start using simulated Xona PULSAR signals.
By Renee Knight
Low-power GNSS chipset solutions provider etherWhere has partnered with Xona Space Systems to develop a receiver that tracks Xona’s multi-frequency PULSAR signal. PULSAR, a next-generation position, navigation, and timing (PNT) service, is provided by a constellation of small, powerful low Earth orbit (LEO) satellites that are 20 times closer to Earth than existing GPS.
By Inside GNSS
Low Earth orbit (LEO) constellations offer a new avenue for assuring PNT. With satellites closer to the Earth, they provide stronger signals and improved positioning accuracy with rapidly changing geometry. They complement GNSS resiliency, security and precision for PNT, making LEO an attractive alternative PNT option for the industry to pursue.
By Inside GNSS
The Spirent simulator emulates Xona navigation signals and enables robust, accurate testing before full satellite constellation deployment
By Inside GNSS
Inside GNSS’ upcoming webinar, “Understanding Latency for PNT Application Development,” delves into the critical topic of data rate and latency for position, navigation and timing, a key element for PNT systems in a number of fields.
By Inside GNSS
As interest in low Earth orbit (LEO) satellites grows, so has the need for accurate modeling of the environment for precise, realistic GNSS/PNT testing. This, however, is a difficult task. LEO satellites are much closer to the Earth than MEO satellites, and that means they must endure different gravitational and atmospheric impacts that are difficult to replicate in a lab.
By Renee Knight
With the new SimORBIT high-accuracy orbital modeling software from Spirent, developers can now calculate LEO orbits and their characteristics for more precise GNSS/PNT testing.
By Inside GNSS
The U.S. Space Force ordered three GPS 3F satellites from Lockheed Martin for $737 million, exercising an option to purchase the satellites under a previously awarded contract.
By Inside GNSS
Spirent Federal announces a new positioning, navigation, and timing (PNT) test capability commonly referred to as programmable power—or flex power—available at no additional cost to qualified customers under support.
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 Federal Systems announced a collaboration with Xona Space Systems to develop simulation and test capabilities for Xona signals produced by small satellites operating in low-Earth orbit (LEO).
By Inside GNSS
Situational awareness and risk assessment are key to UAV mission planning in both dense urban areas and, surprisingly, in open-sky areas such as over ocean coastlines. Successful results depend closely upon scheduling for the most advantageous hours, or even minutes, to overfly particular areas.
By Inside GNSS
Spirent Federal Systems announced that it has been selected by the U.S. National Aeronautics and Space Administration (NASA) for testing GNSS for lunar exploration.
By Inside GNSS
Spirent Communications has released SimIQ, a new software that enables earlier and more efficient GNSS testing during product development. It accomplishes this by extending multi-frequency, multi-constellation simulation capabilities to cover software-only testing needs.
By Inside GNSS
In three hours over two days, this special virtual workshop and professional learning experience rigorously investigates safety, integrity, standards and testing for precise positioning in automotive, both driven and driverless. It asks — and answers! — these crucial questions:
By Inside GNSS
