国土资源遥感Issue(4)：36-40,5.DOI:10.6046/gtzyyg.2012.04.07
资源三号卫星传感器校正产品定位精度验证与分析
Accuracy Analysis and Validation of ZY-3' s Sensor Corrected Products
摘要
Abstract
On the basis of the existing preliminary accuracy validations of ZY - 3 satellite imagery, a further in -depth analysis and verification of the geopositioning accuracy were performed at a typical site with both flat and mountainous terrains. The rational polynomial coefficients (RPC) were refined through block adjustment with high accuracy GPS points as ground control points (GCP) and check points. Digital surface model (DSM) and digital ortho map ( DOM) were automatically generated with the refined RPC, the planimetric and stereo geopositioning accuracies were evaluated, and the influences of terrain, number and distribution of GCPs were analyzed. The results show that the horizontal and vertical geopositioning accuracies of ZY - 3 imagery of the test site are 1.476 m and 2.213 m respectively in the flat area, and 1. 506 m and 2. 895 m respectively in the mountainous area, all meeting the requirements of 1 :50 000 DEM and DOM production both in the flat area and mountainous area. The ZY - 3 imagery can also be used for revision of the 1 : 25 000 topographic maps.关键词
资源三号卫星(ZY-3)/三线阵/定位精度/传感器校正产品/有理函数模型/区域网平差Key words
ZY - 3 / three - line array/ geopositioning accuracy/ sensor corrected image product/ rational function model/ block adjustment分类
信息技术与安全科学引用本文复制引用
刘斌,孙喜亮,邸凯昌,刘召芹..资源三号卫星传感器校正产品定位精度验证与分析[J].国土资源遥感,2012,(4):36-40,5.基金项目
国家基础研究计划(973计划)项目(编号:2012CB719902,2013CB733202)和国家目然科学基金项目(编号:41171355)共同资助. （973计划）
