Jitter Detection for Gaofen-1 02/03/04 Satellites During the Early in-Flight Period
Satellite jitter, the fluctuation of satellite point, has negative influence on the geometric quality of high-resolution optical satellite imagery. Gaofen-1 02/03/04 satellites are Chinese operational remote sensing satellites, which have Earth observation capability with 2/8 (panchromatic/multispectral image) meter resolution. This paper presented a jitter detection method based on multispectral imagery for Gaofen-1 02/03/04 satellites. Three short strip datasets captured in the early in-flight period were used to conduct the experiments. The results indicate that satellite jitter with a frequency of 1.1–1.2 Hz, and amplitude of 1–2 pixel exists during the early in-flight period.
KeywordsJitter detection Multispectral imagery Gaofen-1
The authors would like to thank the editors and anonymous reviewers for their valuable comments, which helped improve this paper. This work was supported by the National Natural Science Foundation of China with Project No. 91738302 and. 91438203. The experimental data are provided by CRESDA. These supports are valuable.
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