资源三号卫星全色影像的姿态角常差检测  

Detection of Constant Angular Error for ZY03 Panchromatic Imagery

作　　者：范大昭[1] 刘楚斌[1] 雷蓉[1] 于瑶瑶 张尚磊 

机构地区：[1]信息工程大学地理空间信息学院 [2]61646部队 [3]测绘工程院

出　　处：《地理信息世界》2013年第4期37-40,共4页Geomatics World

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

摘　　要：根据资源三号卫星传感器的成像原理,构建严格几何模型进行直接定位。通过对不同时间的资源三号全色影像进行实验,验证了姿态角常差的存在,并建立校正模型对其进行改正。利用少量控制点改正姿态角常差后,影像立体定位精度可显著提高。不同地区的实验结果表明,姿态角常差不是恒定不变的,需要根据长期观测建立其变化模型。Based on the principle of ZY03 camera, a rigorous geometric model was established for direct georeferencing. The experimentation results of ZY03 panchromatic images in different time showed that there are constant angular errors. Then we used a constant angular error calibration model to analyse these errors. Once these constant angular errors were eliminated using a few GCPs, the position precision was improved noticeably. The experimental results in different areas show that angular errors are not unchanged, which change model would be build up on the base of long-term surveying.

关 键 词：卫星 姿态角常差 严格几何模型 定位 精度 

分 类 号：TB8[一般工业技术—摄影技术]