Understanding and Using GNSS Multipath By Andria Bilich and Kristine M. Larson Telltale signs of multipath are the fluctuations in the signal-to-noise ratios (SNRs) reported by some GNSS receivers....
As part of the effort to combat the spread of COVID-19 in the United States, UAV company Draganfly has partnered with Australia’s Department of Defense (DOD), the University of South Australia...
Photo: WTS Positioning Solutions WTS Positioning Solutions, a Swedish GPS tracking company, has released its next generation of smart GPS trackers: the Trax G+ series. At the top of the range is...
Part 1 of a Two-Part Story. Read Part 2 here. Cover: GPS World By Bradford W. Parkinson and Stephen T. Powers, with Gaylord Green, Hugo Fruehauf, Brock Strom, Steve Gilbert, Walt Melton, Bill...
Autonomous GPS Positioning at High Earth Orbits To initially acquire the GPS signals, a receiver also would have to search quickly through the much larger range of possible Doppler shifts and code...
A SpaceX Falcon 9 rocket lifts off from Space Launch Complex 4E at Vandenberg Air Force Base, California, Jan. 14. (Photo: SpaceX) Starting this month, the inspector general for the U.S. Pentagon...
Its Algorithms and Performance The authors test three mass-market design drivers on a chip developed expressly for a new role as a combined GPS and Galileo consumer receiver: the time-to-first-fix...
Spirent Communications has announced major enhancements that will help improve location accuracy for E911 calls indoors. The additional test capabilities on Spirent’s 8100 Location Technology...
Spirent Federal Systems, a provider of GPS/GNSS test equipment, announced that Col. (retired) Bernard Gruber, former program director of what is now the U.S. Air Force GPS Directorate, has joined the...
Chefs from U.S. Air Force 746th Test Squadron GPS Test Center of Expertise cook up a winning formula for a booth display, a RECIPE of Resources, Experience, Capability, Innovation, Process, and...
“This is an event where one gets one’s goals for the next year.” Paul Verhoef, program director for satellite navigation programs of the European Commission, may have exaggerated for effect,...
The U.S. Air Force’s second new GPS III satellite, bringing higher-power, more accurate and harder-to-jam signals to the GPS constellation, has arrived in Florida for launch. On March 18, Lockheed...
A year-long project aboard a commercial cargo ship collected tens of thousands of snapshots of radio-frequency interference in the GNSS band on a passage from Spain to Korea and back. Most...
By Thomas A. Stansell, Kenneth W. Hudnut, and Richard G. Keegan The new GPS L1C signal will be broadcast by the Block III satellites, with first launches as early as 2014. L1C innovations...
Using GPS Multipath for Snow-Depth Estimation By Felipe G. Nievinski and Kristine M. Larson INNOVATION INSIGHTS by Richard Langley FRINGES. No, I’m not talking about the latest celebrity...
Aeroflex has introduced the GPSG-1000, a portable GPS and Galileo positional simulator. The GPSG-1000 is lightweight and configurable. It fills a gap in the market by providing a low-cost 12-channel...
From left: 2019 QEPrize winners Richard Schwartz, Bradford Parkinson, James Spilker and Hugo Fruehauf. (Photo: QEPrize) The United Kingdom’s 2019 Queen Elizabeth Prize for Engineering has...
Enhancing GNSS Receiver Sensitivity by Combining Signals from Multiple Satellites By Penina Axelrad, James Donna, Megan Mitchell, and Shan Mohiuddin A new approach to enhancing signal sensitivity...
Photo: PCTEL PCTEL Inc. has released an antenna that combines precision multi-constellation GNSS with high-performance LTE, sub-6 GHz 5G, Bluetooth and Wi-Fi connectivity. The Coach II antenna with...
Septentrio has launched two new products. The AsteRxi is the company’s first multi-sensor GNSS receiver. AsteRxi processes high-quality GNSS measurements with IMU-measurements to generate an...