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 Chinese cargo ship, the Rongda Changsha , equipped with receivers downloading signals from the BeiDou Navigation Satellite System (BDS), arrived at Brunei, on the north coast of the island of...
Photo: Trimble Antenna development, going all the way back to the first antennas, has been one of continuous innovation,” Richard Langley wrote in our September issue. Even after more than 30...
A business and academic consortium led by Chronos Technology has received a major grant from the U.K. government sponsored Technology Strategy Board for a £2.2 million (approximately $3.3 million)...
In November, December, and January, a regulatory drama with high potential impact on the GPS signal and domestic U.S. GPS users began unfolding before the Federal Communications Commission (FCC). As...
Image: Drotek Drotek Electronics is now offering the F9P Sirius RTK GNSS Rover, which is designed to be mounted on a moving vehicle. The u-blox ZED-F9P module inside provides 1-cm position accuracy,...
A senior Chinese government space official on Feb. 5 said precision-navigation user receivers in China will be fitted with chipsets receiving satellite signals from BeiDou, GPS, GLONASS, and...
Not just supporting players, alternative positioning, navigation and timing (PNT) systems strengthen, augment and — when needed — replace GNSS. We explore how companies are using alternative PNT,...
News from Schriever Air Force Base On July 23, the 2nd Space Operations Squadron (2 SOPS) gained Satellite Control Authority of GPS satellite vehicle number 76 — also known as GPS III SV03 —...
Image: Swift Navigation Skylark is now available across the contiguous United States, enabling safe and lane-level accurate positioning. Swift Navigation’s network-connected Skylark...
By Wei Liu, Xingqun Zhan, Li Liu, and Mancang Niu A comprehensive methodology combines spectral-separation and code-tracking spectral-sensitivity coefficients to analyze interference among GPS,...
The VSP600L VeroStar supports the full GNSS spectrum, as well as L-band correction services. (Photo: Allison Barwacz) Tallysman has released its VSP600L VeroStar precision antenna at Intergeo 2019,...
On April 2, German Federal Minister of Transport, Building and Urban Development Peter Ramsauer will officially open the German Galileo test and development infrastructure GATE with the operator IFEN...
Maxtena Inc. has introduced a patented GNSS antenna designed for high-precision and autonomous multi-frequency applications. The M7HCT-A-SMA antenna is a high-accuracy, multi-frequency active...
Topcon’s NET-G5 receiver and CR-G5-C antenna. Topcon Positioning Group said that its latest GNSS reference receiver, the NET-G5, is capable of tracking a new signal from the GLONASS...
We used to divide GPS receivers into consumer grade, resource grade and survey grade. Have these categories been replaced by a continuum of GNSS capabilities? Clem Driscoll “In the U.S....
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...
The ZED-F9K module is designed to keep cars in their lanes. (Photo: u-blox) The new u‑blox ZED-F9K GNSS and dead-reckoning module is designed to bring continuous lane accurate positioning to...
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....