资源一号02B卫星影像几何外检校研究及应用  

Research and Application of CBRS02B Image Geometric Exterior Calibration

作　　者：祝小勇[1] 张过[2] 唐新明[1] 祝欣欣 翟亮[1] 

机构地区：[1]中国测绘科学研究院,北京100039 [2]武汉大学测绘遥感信息工程国家重点实验室,湖北武汉430079 [3]成都市国土资源信息中心,四川成都610072

出　　处：《地理与地理信息科学》2009年第3期16-18,27,共4页Geography and Geo-Information Science

基　　金：科技部国际科技合作项目(2006DFA71570);国家自然科学基金(40601084、40523005);卫星海洋环境动力学国家重点实验室开放研究基金(SOED0602);2006年度地理空间信息技术与应用实验室开放基金(2006004)

摘　　要：针对资源一号02B卫星,建立影像的严密成像几何模型,研究系统误差的补偿方法。实验采用GPS和AOCS的观测数据,将资源一号02B高分辨率影像的定位精度从860个像素(RMS)提高到216个像素(RMS)。分析误差产生的根源,求解俯仰、滚动2个旋转角度和俯仰、滚动、偏航3个旋转角度时,均明显提高了影像的几何定位精度,对于沿轨道方向的误差加入偏航角校正优于不加偏航角校正。In this paper, for CBRSO2B, the rigorous sensor model of images was established, the system error was analyzed and the compensation methods were derived. Using the AOCS and GPS observational data in the experiment, the positioning accuracy of the CBRS02B high-resolution images was improved from 860 pixels （RMS） to 216 pixels （RMS）. And analysis and comparison of error was done from the source in the two cases which included the solution of pitching angle,rolling angle and the pitching angle, rolling angle, yawing angle. The results show that in both cases the geometric positioning accuracy are improved, but along the track accession to the case with yawing angle correction is better than that without yawing angle correction.

关 键 词：资源一号02B卫星 严密成像模型 几何外检校 

分 类 号：TP75[自动化与计算机技术—检测技术与自动化装置]