A Kinematic Carrier Phase Tracking System for High Precision Trajectory Determination

Wang Tang, Dale Turley, Gene Howell, Linda Wilkinson

Abstract:	The processing of GPS carrier phase is a subject that has enjoyed a great deal of attention. For double differenced phase measurements, the integer ambiguities may be resolved by performing a swap of the reference and user receiver antennas or a survey if the baseline is unknown. A variety of techniques have also been proposed for resolving the ambiguities on-the-fly (OTF). The phase observable allows relative positioning accuracies to the centimeter level. Another subject that is the center of intense interest is the terminal homing system. These systems include target recognition/classification algorithms and aimpoint selection. The accuracy requirements for weapon systems employing terminal seekers are quite stringent, usually on the order of a meter. This suggests that relative position derived from the GPS carrier phase is a natural source to evaluate the accuracy of a terminal sensor system. This paper describes the scoring system developed by ARINC Research Corporation for a terminal homing system testbed being developed at Hughes Aircraft Company. An overview of the system configuration is described and flight test results given. The flight test results were obtained from two cases that differed in trajectory dynamics. In both cases, the results indicate that the scoring system will support the accuracy requirements.
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:	783 - 789
Cite this article:	Tang, Wang, Turley, Dale, Howell, Gene, Wilkinson, Linda, "A Kinematic Carrier Phase Tracking System for High Precision Trajectory Determination," 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. 783-789.
Full Paper:	ION Members/Non-Members: 1 Download Credit Sign In