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...
Improving Single-Frequency RTK in the Urban Enviornment By Mojtaba Bahrami and Marek Ziebart A look at how Doppler measurements can be used to smooth noisy code-based pseudoranges to improve the...
By John Nielsen, Ali Broumandan, and Gérard Lachapelle Ubiquitous adoption of and reliance upon GPS makes national and commercial infrastructures increasingly vulnerable to attack by criminals,...
Experimenting with GPS on Board High-Altitude Balloons By Peter J. Buist, Sandra Verhagen, Tatsuaki Hashimoto, Shujiro Sawai, Shin-Ichiro Sakai, Nobutaka Bando, and Shigehito Shimizu In this...
Loctronix ASR-2300 Loctronix Corporation, a provider of unified positioning solutions for GNSS-challenged environments, is making available its new software-defined radio (SDR) module, the ASR-2300,...
A New Way to Test GNSS Receivers By Alexander Mitelman INNOVATION INSIGHTS by Richard Langley GNSS RECEIVER TESTING SHOULD NEVER BE LEFT TO CHANCE. Or should it? There are two common approaches to...
Spirent’s GSS9000 constellation simulator. Spirent Communications, provider of testing solutions for positioning and navigations systems, has introduced the Spirent GSS9000...
News courtesy of CANSPACE Listserv. The two BeiDou-2/Compass satellites launched on 18 September are now in their circular medium Earth orbits and have started transmitting navigation...
A Look at High-Latitude and Equatorial Ionospheric Disturbances of GPS Signals By Yu Jiao, Yu (Jade) Morton, Steve Taylor, and Wouter Pelgrum INNOVATION INSIGHTS by Richard Langley THE EARTH’S...
by James T. Curran, Mark Petovello, and Gérard Lachapelle Within a day of their initial activation over central Europe on March 12, Galileo satellites were visible over North America. The PLAN Group...
The first two satellites for Europe’s Galileo global navigation satellite system were lofted into orbit October 21 by the first Russian Soyuz vehicle ever launched from Europe’s Spaceport in...
The International Space Station. (Photo: ESA) Feature from the European Space Agency A new concept that involves mounting an instrument on the International Space Station and taking advantage of...
An Answer for Precise Positioning Research By Thomas Pany, Nico Falk, Bernhard Riedl, Tobias Hartmann, Günter Stangl, and Carsten Stöber INNOVATION INSIGHTS by Richard Langley WHAT IS THE IDEAL...
The monitoring station in Brazil uses a Septentrio PolaRxS receiver to monitor the ionosphere, a Septentrio AsteRx3 to perform tests static and kinematic tests, and three RTK Altus APS3 receivers...
Tallysman’s compact GNSS TW1721 dual-feed embedded antenna with Accutenna technology. Tallysman, a provider of high-performance, high-quality RF and GNSS components, has announced that its range...
Oxford Technical Solutions’ xOEMcore. Photo: Oxford Technical Solutions The xOEMcore, now being offered by Oxford Technical Solutions (OxTS), is an inertial navigation system that can also...
Graphic: GPS World In GPS World’s first-ever Simulator Buyers Guide, we feature simulator tools, devices, and software from eight prominent companies. Download the PDF.
Downtown Seattle, a typical test-case environment. Multi-Constellations Working in a Dense Urban Future GNSS receivers in cell phones will soon support four or more satellite constellations and...
We appear incompletely before you this month. A funny thing happened on the way to the presses: we discovered that we had more content than pages in which to squeeze it. “All the news that fits to...
By Christopher J. Hegarty Based upon lessons learned from the LightSquared situation, the author identifies important considerations for GPS spectrum interference standards, recommended by...
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Since 2006Phone mobile jammer yakima,mobile phone jammer Nicolet,Handling the Biases for Improved Triple-Frequency PPP Convergence By Denis Laurichesse Precise point positioning (PPP) can be considered a viable tool in the kitbag of GPS positioning techniques....
