Two British technologists backed by the U.K. Ministry of Defense have filed patents on the future interoperable GPS and Galileo signal designs that severely disrupt modernization plans for both...
The head of the European Commission’s Directorate General for Enterprise and Industry, the agency that oversees all operations of the Galileo program, has filed an official comment on the Federal...
Editor’s note: GPS World Innovation editor Richard Langley has co-authored a study, described below, exploring how irregularities in Earth’s upper atmosphere can distort GPS...
Photo: Spirent Communications Spirent Communications’ new SS6425 multi-frequency GNSS record and playback (RPS) test system provides RF recordings for more constellations (GPS, GLONASS,...
The NavX-NCS GNSS multi-frequency simulator now supports China’s BeiDou-2 navigation satellite system. BeiDou support is a key enhancement in software update V.1.9 for the NavX-NCS GNSS...
Spirent’s SimSAFE Fights Signal Vulnerability. By Tracy Cozzens Spirent Communications now offers SimSAFE, a software solution that simulates legitimate GNSS constellations along with spoofed or...
Collaborative Navigation in Transitional Environments By Dorota A. Grejner-Brzezinska, J.N. (Nikki) Markiel, Charles K. Toth and Andrew Zaydak INNOVATION INSIGHTS by Richard Langley COLLABORATION...
By Jenna R. Tong, Robert J. Watson, and Cathryn N. Mitchell, University of Bath Using signal-to-noise measurements from a single commercial-grade L1 GPS receiver, it is possible to detect...
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....
An announcement on the JAVAD GNSS website states “On December 21, 2012, we have tracked E6 B/C signal from all launched Galileo satellites, using TRE-G3T-E E6-band capable receiver....
Collaborative Navigation in Transitional Environments By Dorota A. Grejner-Brzezinska, J.N. (Nikki) Markiel, Charles K. Toth and Andrew Zaydak INNOVATION INSIGHTS by Richard Langley COLLABORATION...
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....
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...
In GPS World’s annual Simulator Buyers Guide, we feature simulator tools, devices, and software from six prominent companies. Also available as a downloadable PDF. CAST Navigation CAST-SGX GPS...
Ultra-Low-Power, High-Accuracy Location for Wearable GNSS Devices: From Host-Based to On-Chip Photo: Steve Malkos, Manuel del Castillo, and Steve Mole, Broadcom Inc., GNSS Business Unit As...
Photo: Galileo Analysis of new Galileo signals at an experimental ground-based augmentation system (GBAS) compares noise and multipath in their performance to GPS L1 and L5. Raw noise and multipath...
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...
A performance assessment demonstrates the ability of a networked group of users to locate themselves and each other, navigate, and operate under adverse conditions in which an individual user would...
Seven technologies that put GPS in mobile phones around the world — the how and why of location’s entry into modern consumer mobile communications. By Frank van Diggelen, Broadcom Corporation...
CAST Navigation of Tewksbury, Massachusetts introduced its SGX GPS Satellite Simulator. With its compact size — 7 × 11× 3 inches — and weighing in at just over 4 pounds, the SGX is CAST’s...
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Since 2006Mobile phone jammer dealers,phone mobile jammer harmonica,By Thorsten Lück, Günter Heinrichs, IFEN GmbH, and Achim Hornbostel, German Aerospace Center This article discusses the GALANT adaptively steered antenna array and receiver and demonstrates the...
