Study on the Geo-positioning Stability of GF-1 WFV Images

doi:10.13474/j.cnki.11-2246.2018.0043

Abstract

Abstract:

Through integrating the characteristics of GF-1 satellite WFV sensor which possesses high resolution and wide field view, taking ZY-3 sensor correction production as reference data, analyzing geographic information of homologous points, this paper evaluates the relative geo-positioning accuracy of four WFV cameras in Beijing area and finds the geo-positioning error characteristics. The experiment results show that the geo-positioning errors in one signal image appear obviously systematic errors. However, the geometric error directions of different phase images are irregularity. In view of this phenomenon, basing on the camera imaging principle, this paper theoretically proves that it is difficult to effectively eliminate the system errors of other phase images with compensation parameters of RFM (rational function model) of one phase image.

Key words: GF-1, WFV sensor, long time series, geo-positioning, ZY-3

CLC Number:

HAN Jie, XIE Yong. Study on the Geo-positioning Stability of GF-1 WFV Images[J]. 测绘通报, 2018, 0(2): 50-54.

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