By Inder Jeet Gupta It is well known that the phase center of a GNSS antenna can vary with the satellite direction. This phase center movement leads to aspect dependent carrier phase and code phase...
The UAS1 GNSS receiver module has been designed for UAV/UAS applications requiring centimeter accuracy in a small package. (Photo: Trimble) Trimble has introduced a compact, high-precision GNSS...
Testing GNSS Receivers with Record and Playback Techniques By David A. Hall Is there a way to perform repeatable tests on GNSS receivers using real signals? This month’s column looks at how to use...
Testing the antenna performance of GNSS signals such as GPS, GLONASS, Beidou, Galileo and Metropolitan Beacon Systems (MBS) is key to location accuracy performance of a mobile device. To address the...
Image: Spire Spire Global, a space-to-cloud analytics company, is now using Galileo to offer GNSS radio occultation (GNSS-RO) products for the weather community. Radio occultation is the process of...
Yesterday we posted news of an 11-hour downtime for the full GLONASS constellation, due to an upload of bad ephemerides. Coincidentally, during that 11-hour period, the mass-market chip company...
New modules enable entertainment, advanced connectivity features and next-generation artificial intelligence Qualcomm Technologies has launched three new mobile platforms — the Qualcomm Snapdragon...
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...
“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,...
Chip-scale atomic clock. How a Chip-Scale Atomic Clock Can Help Mitigate Broadband Interference Small low-power atomic clocks can enhance the performance of GPS receivers in a number of ways,...
BeiDou Signals, Future Receiver Design Highlighted at Stanford PNT Symposium By James D. Litton and Tom Langenstein James L. Litton The Stanford Center for Position, Navigation and Time conducted...
A Hansel and Gretel Approach to Cooperative Vehicle Positioning By Scott Stephenson, Xiaolin Meng, Terry Moore, Anthony Baxendale, and Tim Edwards MEET GEORGE JETSON. Those of us of a certain age...
Photo: Mark L. Psiaki, Brady W. O’Hanlon, Steven P. Powell, Jahshan A. Bhatti, Todd E. Humphreys, and Andrew Schofield Spoofing Detection with Two-Antenna Differential Carrier Phase By Mark L....
TAU-0707 series GNSS module. (Photo: Allystar) Allystar Technology Co. Ltd. has launched its smallest multi-band multi-GNSS module, the TAU-0707. Within its 7.6 x 7.6 millimeter size, the TAU-0707...
Beyond GPS report. Check out the report here. (Cover: NSI) George Mason University has revised a briefing paper on positioning, navigation and timing (PNT) in response to concerns about its...
Photo: iStock.com/valio 84sl, via FAA Team to provide all-in-one hardware and software platform for commercial drones. GE Aviation and Auterion are integrating the Auterion Enterprise PX4 operating...
The Institute of Navigation (ION) presented its Annual Awards during the ION International Technical Meeting and Precise Time and Time Interval Systems and Applications Meeting, both held virtually...
Photo: Tallysman Tallysman GNSS has added three new antennas to its Helical antenna line. Released earlier this year, the helical antenna line provides unprecedented performance in a lightweight,...
Photo: Lockheed Martin The National Space-Based Positioning, Navigation and Timing (PNT) Advisory Board has scheduled a meeting for June 6-7 at the Westin Hotel in Alexandria, Virginia, reports the...
Dragonfly (Image: CEVA) CEVA Inc. and Nurlink have introduced Nurlink’s NK6010 3GPP Rel.14 eNB-IoT system-on-chip (SoC), powered by the CEVA-Dragonfly NB2 IP solution. The companies made the...