The Utilization of Single Point Positioning and Multi-Layers Feed-Forward Network for INS/GPS Integration

K-W. Chiang

Abstract:	Inertial Navigation System (INS) and Global Position System (GPS) technologies have been widely applied in many positioning and navigation applications. In general, integration is implemented using an INS and a Differential Global Positioning System (DGPS) because the instantaneous accuracy of GPS Single Point Positioning (SPP) in autonomous mode under Selective Availability (SA), prior to US President, Bill Clinton turning off SA, was not adequate. The decision to stop degrading the accuracy the accuracy of Standard Positioning Service (SPS) has had a significant impact on position and navigation applications. The most important outcome is the improvement of SPP results, which make it an attractive alternative to the DGPS mode of positioning or navigation. This article investigates an INS/GPS integration method that fuses uncompensated Inertial Measurement Unit (IMU) measurements and SPP measurements utilizing a Position Update Architecture (PUA) that was developed around a multi-layer feed-forward neural network and the Levenberg-Marquardt learning algorithm.
Published in:	Proceedings of the 16th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS/GNSS 2003) September 9 - 12, 2003 Oregon Convention Center Portland, OR
Pages:	258 - 266
Cite this article:	Chiang, K-W., "The Utilization of Single Point Positioning and Multi-Layers Feed-Forward Network for INS/GPS Integration," Proceedings of the 16th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS/GNSS 2003), Portland, OR, September 2003, pp. 258-266.
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