By Mark L. Psiaki with Steven P. Powell and Brady W. O’Hanlon INNOVATION INSIGHTS with Richard Langley IT’S A HOSTILE (ELECTRONIC) WORLD OUT THERE, PEOPLE. Our wired and radio-based communication systems are constantly under attack from evil doers. We are all familiar with computer viruses and w...
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By Mathieu Raimondi, Eric Sénant, Charles Fernet, Raphaël Pons, Hanaa Al Bitar, Francisco Amarillo Fernández, and Marc Weyer INNOVATION INSIGHTS with Richard Langley INTEGRITY. It is one of the most desirable personality traits. It is the characteristic of truth and fair dealing, of honesty and...
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By Simon Banville, Wei Zhang, and Richard B. Langley INNOVATION INSIGHTS with Richard Langley IT’S NOT JUST FOR POSITIONING, NAVIGATION, AND TIMING. Many people do not realize that GPS is being used in a variety of ways in addition to those of its primary mandate, which is to provide accurate po...
Read More →On day 53 (February 22) around 09:15 GPS Time, GLONASS 743 began transmitting on frequency channel 6 using almanac slot 8 (R08). It should replace GLONASS 701K (801) transmitting on frequency channel -5, previously using almanac slot 8. However, GLONASS 701K was not immediately switched off and/or d...
Read More →The explosion of an underground nuclear device by North Korea this week disturbed the Earth’s ionosphere. The blast generated infrasonic waves that propagated all the way to the upper atmosphere causing small variations in the density of electrons there. By analyzing the signals from GPS satelli...
Read More →News courtesy of CANSPACE Listserv. According to tracking data from NORAD/JSpOC, GLONASS 743 experienced a delta-V maneuver on or about February 12 as it approached its new orbital position at Slot 8 in Plane 1. Note that GLONASS 743 is not currently in service but will likely rejoin the active cons...
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By Yu-Hsuan Chen, Sherman Lo, Dennis M. Akos, David S. De Lorenzo, and Per Enge INNOVATION INSIGHTS with Richard Langley THE ANTENNA IS A CRITICAL COMPONENT OF ANY GNSS RECEIVING EQUIPMENT. It must be carefully designed for the frequencies and structures of the signals to be acquired and tracked. Im...
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By Zhefeng Li and Demoz Gebre-Egziabher INNOVATION INSIGHTS with Richard Langley My University, the University of New Brunswick, is one of the few institutes of higher learning still using Latin at its graduation exercises. The president and vice-chancellor of the university asks the members of the ...
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