GPSINS紧组合导航中接收机钟差建模.pdf

DOI:.
大地测量与地球动力学
第34 卷第3 期 tic model for clock error based on
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the theory of refining filter model by time-frequency analysis power spectral density autocorrelation and Allan vari-
ance was proposed． Comparison of the results calculateed with random walk type and with Gauss-Markov type shows
，
that only by using Gauss-Markov type clock model together with the autocorrelation analysis of correlation time the
variation disciplinarian of clock can be represented properly．
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Key words GPS /INS receiver clock error autocorrelation function power spectral density PSD Gauss-Markov
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GPS /INS 紧组合导航采用 Kalman 滤波进行信 参数用随机游走模型表示 文献 10 提出将钟差、
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息融合。在非差分组合模式下 一般将 GPS 接收机 钟速参数分为确定性部分和随机部分分别进行参数
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钟