GPS satellite simulatior signal estimation based on ANN

Kou Yanhong; Yang Dongkai; Chang Qing; Zhang Qishan

Volume 25 Issue 8

Aug. 2003

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Kou Yanhong, Yang Dongkai, Chang Qing, Zhang Qishan. GPS satellite simulatior signal estimation based on ANN[J]. Journal of Electronics & Information Technology, 2003, 25(8): 1029-1034.

Citation:

Kou Yanhong, Yang Dongkai, Chang Qing, Zhang Qishan. GPS satellite simulatior signal estimation based on ANN[J]. Journal of Electronics & Information Technology, 2003, 25(8): 1029-1034.

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GPS satellite simulatior signal estimation based on ANN

Received Date: 2003-01-28
Rev Recd Date: 2003-04-21
Publish Date: 2003-08-19

Abstract

Abstract

Multi-channel GPS satellite signal simulator provides realistic test signals for GPS receivers and navigation systems. In this paper, signals arriving the antenna of GPS receiver are analyzed from the point of view of simulator design. Focus is put on the estimation meth-ods of several signal parameters that are difficult to determine- directly according to existing experiential models due to various error factors. Based on the theory of Artificial Neural Net-work (ANN), an approach to simulate signal propagation delay, carrier phase, power, and other parameters using ANN is proposed. The architecture of the hardware-in-the-loop test system is given. The ANN training and validation process is described. Experimental results demon-strate that the ANN designed can simulate sample data statistically in high fidelity. Therefore the computation of signal state based on this ANN can meet the design requirement, and can be directly applied to the development of multi-channel GPS satellite signal simulator.

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References(1)

References

M. Baker, B. Dingman, W. Gregg, High fidelity GPS satellite simulation, Washington, AIAA Modeling and Simulation Technologies Conference, New Orleans, USA, AIAA, 1997, 213-223.[2]M.C. Moreau, M. Wennersten, et al., Test results of the PiVoT receiver in high Earth orbits using a GSS GPS simulator, ION GPS 2001, Salt Lake City, ION, 2001, 2316-2326.[3]I.C. Billing, STR4760 Multi-channel GPS/SBAS simulator product specification, England,Sprirent Communications, Inc., 2000, 1-28.[4]B.W. Parkinson, J. J. Spilker Jr., Global Positioning System: Theory and Applications (Volume I), Washington, AIAA, 1996, 82-93,485-516.[5]E.D. Kaplan, Understanding GPS: Principles and Applications, Boston, Artech House, 1996,chapter 7.[6]S.K. Gupta, M. K. Low, C. W. Tan, A new approach to simulate GPS measurement, IEEE Conference on Position, Location and Navigation, CA, U.S.A., 1998, 236-242.丛爽, 面向 MATLAB 工具箱的神经网络理论与应用, 合肥, 中国科学技术大学出版社, 1998, 1-15.[7]Lupash Consulting.[J].Matlab GPS Software Toolbox Users Guide And Reference Manual (Version 3.01), Fullerton, USA, Lupash Consulting.2001,:-[8]A. Leick, GPS Satellite Surveying (2nd ed.), New York, Wiley-Interscience, John Wiley Sons,1995, 286-316.

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