Low-frequency Errors Compensation of Attitude Determination System in Satellite Photogrammetry

doi:10.11947/j.AGCS.2016.20150167

Abstract

Abstract: In the attitude determination system exists not only the high-frequency errors, but also the low-frequency errors related to the satellite orbit latitude and time. The low-frequency errors would affect the location accuracy without GCPs, especially to the horizontal accuracy. In this paper, firstly, the factors that produce low-frequency errors and the solutions are analyzed. Secondly, the low-frequency errors are detected and compensated automatically during bundle adjustment in TH-1 satellite, thus the influence of location accuracy by low-frequency error is eliminated. At last, the verification is tested using data of TH-1. The experimental results show: low-frequency errors compensation can resolve the system error of position without GCP, and has played an important role in the consistency of global location accuracy for TH-1.

Key words: satellite photogrammetry, low-frequency errors compensation, bundle adjustment, elements of exterior orientation, location accuracy

CLC Number:

P227

WANG Renxiang, WANG Jianrong, HU Xin. Low-frequency Errors Compensation of Attitude Determination System in Satellite Photogrammetry[J]. Acta Geodaetica et Cartographica Sinica, 2016, 45(2): 127-130.

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