资源三号卫星传感器校正产品的精度评估  

Precision Evaluation of ZY-3's Sensor Corrected Products

作　　者：戴海涛[1] 范大昭[1] 雷蓉[1] 刘楚斌[1] 孙晓昱[1] 

机构地区：[1]信息工程大学测绘学院,河南郑州450052

出　　处：《测绘与空间地理信息》2014年第5期42-46,共5页Geomatics & Spatial Information Technology

基　　金：国家863计划项目(2012AA12A302);国家自然科学基金(40901230);国家教育部博士后科研基金项目(20080440234)资助

摘　　要：分别选取资源三号(ZY-3)卫星平地和山地区域的前后视影像,量测20个GPS点作为控制点和检查点,对卫星传感器校正产品定位精度进行验证。通过区域网平差算法对传感器校正产品(SC)自带的有理函数模型(RPC)进行优化,消除系统误差。实验结果表明:在地形平坦地区ZY-3卫星SC产品的平面定位精度可达3.275 m,高程定位精度可达1.686 m;在地形起伏较大的山区平面定位精度可达4.335 m,高程定位精度可达3.628 m,满足1∶50 000地形图测绘的要求。The positioning accuracy of ZY-3＇s sensor corrected（ SC） products was estimated by using Imageries with coverage of flat and mountainous region and twenty GPS point as ground control point（ GCP） and check point. The rational polynomial coefficients（ RPC） were refunded through block adjustment and the system error was eliminated. Experimental results show that： the horizontal and vertical positioning accuracies of ZY-3 SC products of test site are 1. 686 m and 3. 275 m respectively in the flat region,and 3. 628 m and 4. 335 m respectively in the mountainous area. ZY-3 imagery can meet the requirements of revision of the 1∶ 50 000 topographic.

关 键 词：资源三号 传感器校正产品 有理多项式系数 区域网平差 定位精度 

分 类 号：P237[天文地球—摄影测量与遥感]