资源三号卫星DSM精度评估  

DSM accuracy evaluation of ZY-3 satellite

作　　者：刘翔[1,2] 唐新明 祝小勇 丁健行 曲典 LIU Xiang;TANG Xinming;ZHU Xiaoyong;DING Jianhang;QU Dian(College of Geodesy and Geomatics,Shandong University of Science and Technology,Qingdao Shandong 266590,China;Land Satellite Remote Sensing Application Center,Ministry of Natural Resources,Beijing 100048,China)

机构地区：[1]山东科技大学测绘与空间信息学院,山东青岛266590 [2]自然资源部国土卫星遥感应用中心,北京100048

出　　处：《北京测绘》2023年第3期317-324,共8页Beijing Surveying and Mapping

基　　金：国家重点研发计划(2018YFB0504903);高分测绘应用示范项目二期(42-Y30B04-9001-19/21)。

摘　　要：本文主要验证资源三号卫星生产数字表面模型(DSM)产品精度。利用整体精度评价指标对平差后DSM产品进行了精度评价。实验结果表明,ZY301、ZY302、ZY303生产的DSM产品精度依次提高,均方根误差分别为1.85 m、1.70 m、1.55 m;同一颗卫星11—12月比9—10月的立体像对生产的DSM数据精度高;基于前-后视立体影像生产的DSM产品的高程精度明显优于基于前-正视和基于后-正视立体影像生产的产品。This paper mainly verified the accuracy of digital surface model(DSM)products produced by ZY-3 satellite.The overall accuracy of DSM products after adjustment was evaluated by using the overall accuracy evaluation index.The experimental results showed that the DSM data precision produced by ZY301,ZY302 and ZY303 was improved in turn,and the root mean square error was 1.85 m,1.70 m and 1.55 m respectively;Through analysis,the DSM data accuracy of the same satellite from November to December was higher than that of the stereo image production from September to October;the elevation accuracy of DSM and DEM products based on the front-rear stereoscopic image was obviously better than that based on the front-front and rear-front stereoscopic image.

关 键 词：资源三号卫星 数字表面模型 精度评价 精度验证 

分 类 号：P231[天文地球—摄影测量与遥感]