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《Bulletin of Surveying and Mapping》 2018-02
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Study on the Geo-positioning Stability of GF-1 WFV Images

HAN Jie;XIE Yong;School of Urban-rural Planning and Architecture,Xuchang University;School of Geography and Remote Sensing,Nanjing University of Information Science & Technology;  
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.
【Fund】: 河南省科技攻关项目(172102210463);; 国家自然科学基金(41671345);; 高分辨率对地观测系统共性指南(50-Y20A07-0508-15/16)
【CateGory Index】: P237
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