POS数据与机载三线阵影像的联合平差  

Combined Adjustment of POS Data and Airborne Three Line Images

作　　者：王冬红[1,2] 刘军[1] 韩建峰 

机构地区：[1]信息工程大学测绘学院 [2]65015部队

出　　处：《测绘科学技术学报》2009年第6期422-425,共4页Journal of Geomatics Science and Technology

基　　金：国家863计划资助项目(2006AA12Z154);中国博士后科学基金资助项目(20080430587);地理空间信息工程国家测绘局重点实验室经费资助项目(200820)

摘　　要：研究了机载三线阵影像与POS位置、姿态同步测量数据联合平差的理论方法;设计了一种描述POS测量误差的数学模型,采用改进的定向片内插模型实现了机载三线阵影像的光束法平差,并利用ADS40影像进行了单航带和区域网平差的实验。结果表明,极少量地面控制点参与平差即可有效提高POS数据的定位精度;在测区3角布设控制点可得到稳定的平差结果,平面和高程精度均优于1.7个像素。高精度的POS数据可有效控制航带模型的旁向倾斜,使得单航带摄影测量作业成为可能。A comprehensive study on combined adjustment of airborne three line images with positioning and orientation system （POS） simultaneously measured position and attitude data has been made. The mathematical model describing POS error was proposed, and then bundle adiustment with advanced orientation image method has been discussed. Both single strip and block adjustment has been tested using ADS40 data. Experimental results show that triangulation with few ground control points can improve the precision of POS data remarkably. Stable results can be obtained if there is a control point at three corners of the block and corresponding positioning error is better than 1.7 pixels in both horizontal and height directions. Precise POS data can control the incline of stripwise stereo model effectively, which enables single strip photogrammetric mapping.

关 键 词：定位定向系统 三线阵影像 联合平差 光束法平差 定向片 

分 类 号：P231.5[天文地球—摄影测量与遥感]