Fast Parameter Estimation for Pseudo-Stochastic Pulse

LIU Weiping; HAO Jinming; TIAN Yingguo; YU Heli

doi:10.13203/j.whugis20130556

Volume 40 Issue 11

Nov. 2015

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Geomatics and Information Science of Wuhan University > 2015 > 40(11): 1487-1492. > DOI: 10.13203/j.whugis20130556

LIU Weiping, HAO Jinming, TIAN Yingguo, YU Heli. Fast Parameter Estimation for Pseudo-Stochastic Pulse[J]. Geomatics and Information Science of Wuhan University, 2015, 40(11): 1487-1492. DOI: 10.13203/j.whugis20130556

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Fast Parameter Estimation for Pseudo-Stochastic Pulse

College of Navigation and Aerospace Engineering, Information Engineering University, Zhengzhou 450001, China

Funds: The National Key Projects of Second-generation Navigation Satellite System of China, No. GFZX0301040308;the Innovation Fund for PhD of Information Engineering University, No. S201307.

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Received Date: May 09, 2014
Published Date: November 04, 2015

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Abstract

Abstract

Pseudo-stochastic pulse can compensate for the deficiencies of a dynamic model in precise orbit determination. Because of the great number of pseudo-stochastic parameters, the efficiency of the conventional least squares estimation may be depressed. To resolve this problem, a method based on the theory of parameter pre-elimination and back substitution, is presented. This proposed method was validated by experiments, and the result shows that parameter estimation using this method is the same as that of the conventional least squares, but with improved efficiency.
- pseudo-stochastic pulse,
- fast parameter estimation,
- parameter pre-elimination,
- dynamic model,
- precise orbit determination

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