摘要
简述了资源三号卫星影像的几何定位处理过程，分析了几何检校的必要性。结合线阵传感器的成像特点，构建了卫星的严格成像几何模型。对外方位元素误差和内方位元素误差进行分析，初步构建了资源三号卫星的平差数学模型。采用不同的几何检校方案对外方位元素和内方位元素的解算方法进行研究，并利用资源三号卫星线阵影像进行试验。试验结果表明：采用先进行外方位元素检校，再进行内方位元素检校的方案，其检校精度与整体检校方案的精度基本一致；采用先进行内方位元素检校，再进行外方位元素检校的方案，其检校效果较差。
Geometric positioning process of ZY03 satellite images is briefly described and the necessity of geometric calibration is analyzed in this paper. Combined with the imaging characteristics of line sensors, rigorous geometric model is set up, and the satellite exterior orientation model and sensor interior orientation error model are analyzed. Then the block adjustment math model of ZY03 satellite image is established. The elements of exterior orientation and interior orientation are calculated using different geometric calibration programs, and the ZY03 satellite images are employed to conduct the test. The result shows that when the exterior orientation errors are calibrated first and interior orientation errors are calibrated next, the precision can achieve the same level of the overall calibration scheme; while the result will be poor if the calibration sequence is reversed.
出处
《测绘科学与工程》
2015年第6期36-40,共5页
Geomatics Science and Engineering
基金
国家863计划资助项目（2012AA12A302-5）,国家自然科学基金资助项目（40901230）.
关键词
高分辨率
遥感
线阵
几何检校
区域网平差
high resolution
remote sensing
line array
geometric calibration
block adjustment
