Testing Differential GPS Using Satellite Signal Generators

Marvin May, Joe Weiss, John Haiges

Abstract:	Improved accuracy and integrity have driven the widespread utilization of differential GPS. Factors such as reference range accuracy considerations, logistical and cost considerations associated with field testing, and the require- ment for test repeatability, dictate the ability to test these systems in a laboratory. This paper will summarize efforts, test configurations, procedures and the results of differen- tial GPS testing at the Navy’s Central Engineering Activ- ity. Capabilities in the areas of code differential, car- rier-smoothed code differential and precise on-the-fly dif- ferential are discussed. Procedures for calibrating the dif- ferential GPS laboratory configuration to achieve coherencies implicit in some of the above techniques are reviewed. Some results demonstrating sample performance of the GPS simulation equipment as measured by commer- cial survey equipment and software are shown.
Published in:	Proceedings of the 7th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1994) September 20 - 23, 1994 Salt Palace Convention Center Salt Lake City, UT
Pages:	737 - 746
Cite this article:	May, Marvin, Weiss, Joe, Haiges, John, "Testing Differential GPS Using Satellite Signal Generators," Proceedings of the 7th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1994), Salt Lake City, UT, September 1994, pp. 737-746.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In