基于渐消因子的ECEF-GLS估计算法

doi:10.12305/j.issn.1001-506X.2024.01.16

Abstract

Abstract:

The traditional error registration algorithm assumes that the system deviation is constant or changes slowly, but this assumption is no longer valid when the system error changes suddenly or rapidly. To solve this problem, the error registration algorithm in time-varying condition is studied, the fading factor is introduced, the conventional generalized least squares algorithm based on the earth-centered earth-fixed coordinate system (ECEF-GLS) is revised, the historical measurement influence on registration is weaken, and the selection problem of fading factor are studied to give reasonable design method. The algorithm verification shows that the ECEF-GLS estimation algorithm based on fading factor can estimate the time-varying system deviation effectively, and the accuracy meets the requirements of registration.

Key words: generalized least squares algorithm based on the earth-centered earth-fixed coordinate system (ECEF-GLS), fading factor, parameter estimation, time-varying, system error

CLC Number:

TN953

Yunlong DONG, Yan ZHANG. ECEF-GLS estimation algorithm based on fading factor[J]. Systems Engineering and Electronics, 2023, 46(1): 137-142.

Figures/Tables 13

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ECEF-GLS estimation algorithm based on fading factor

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