Cal Poly Pomona

Physics and Astronomy Seminar

Thursday, November 8th

Position, Navigation, and Timing 2012

Steven Wilkinson

Engineering Fellow, Space and Airborne Systems, Raytheon Corporation

GPS clocks are the reference system that enables high precision navigation that we have come to enjoy in the 21st century. The system utilizes a concept of one-way time of arrival ranging. Satellite transmissions are referenced to highly accurate atomic frequency standards that are synchronous with GPS time. This talk will address how GPS works and discuss relativistic issues that had to be solved before the system could function. We will discuss difficulties ocean navigation has experienced dating back to the early 1700's. We will learn that the fundamental physical issues are the same today as they were in the 1700's only the accuracies and technologies have changed.


Refreshments at 10:50 AM. Seminar begins at 11:00 AM.
Building 8, Room 241
For further information, please call (909) 869-4014

Last modified on Sept 25, 2012
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