MODELING RECEIVER CLOCK ERROR IN GPS/INS TIGHTLY
INTEGRATED NAVIGATION
Institute of Geo-Spatial Information,Information Engineering University,Zhengzhou 450052
Abstract A method to constructe a reliable functional model and a stochastic model for clock error based on the theory of refining filter model by timefrequency analysis,power spectral density,autocorrelation and Allan variance was proposed.Comparison of the results calculateed with random walk type and with GaussMarkov type shows that only by using GaussMarkov type clock model together with the autocorrelation analysis of correlation time,the variation disciplinarian of clock can be represented properly.
Key words :
GPS/INS
receiver clock error
autocorrelation function
power spectral density(PSD)
Gauss-Markov
Received: 12 August 2013
Published: 28 May 2014
Cite this article:
Gan Yu,Sui Lifen,Xiao Guorui et al. MODELING RECEIVER CLOCK ERROR IN GPS/INS TIGHTLY
INTEGRATED NAVIGATION[J]. jgg, 2014, 34(3): 129-132.
Gan Yu,Sui Lifen,Xiao Guorui et al. MODELING RECEIVER CLOCK ERROR IN GPS/INS TIGHTLY
INTEGRATED NAVIGATION[J]. jgg, 2014, 34(3): 129-132.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2014/V34/I3/129
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