The stability of a received GPS signal determines how well the receiver can track the signal and the accuracy of the positioning results it provides. While the satellites use a very stable oscillator and modulation system to generate their signals, just how stable are the resulting phase-modulated c...
Read More →UC Berkeley researchers have developed a method to provide real-time, high-resolution data in hard-to-map waterways, using GPS. Tossing a robot is Andrew Tinka, with Kevin Weekly. (Photo courtesy of Jérôme Thai.) By Tracy Cozzens A fleet of 100 robots equipped with GPS and sensors were released Ma...
Read More →Just for the record: what is reported in “Detecting False Signals With Automatic Gain Control” (April GPS World) is what we introduced a long time ago and is reflected in one of our videos, and implemented in all of our GNSS receivers. AGC information is one of the four ways, and the least signi...
Read More →Although the LightSquared issue seems to have waned, it’s like a virus in that it’s really difficult to erradicate it completely. However, Harbinger Capital Partners (LightSquared’s primary financial backer) and LightSquared are facing tougher problems than they have since theyR...
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Augmented reality delivers two important military capabilities to the warfighter: situational awareness and precision piloting capabilities, both key to survival on the battlefield. Look-ahead drive-to-position, based on accurate GPS positions, extends the importance of GPS to high-speed operation o...
Read More →By Art Kalinski Few of us fully appreciate the significance of the Qur’an burning in Afghanistan by our troops several months ago. The best analogy I can think of is burning of an American flag. As any Boy Scout can tell you, the proper way to dispose of a worn American flag is to burn it in a d...
Read More →Five experts share what original equipment manufacturers need to know about testing their GNSS devices during product development. System Health John Pottle, Spirent Positioning Technology Most people are aware that simulation forms a key part of GPS receiver development and testing. However,...
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By Stéphane Gallot, Pascal Dutot, and Christophe Sajous A new hardware assessment tool automates testing and mission replay, managing military GPS receiver input and output data, with an operational implementation and with a better control of initialization conditions, especially direct P(Y) acquis...
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