摘要
概述了目前国内外对雷达影像进行正射纠正的算法 ,分析了星载合成孔径雷达的成像几何原理。阐述了距离 -多普勒理论 ,并将该理论应用到 SAR正射纠正 ,进行了计算机实现 ,设计了相应的程序模块。用 ERS- 2产品进行实验的结果表明 ,这种纠正方法精度比较高 ,纠正后影像效果好 ,可以应用到 SAR产品的几何处理上。
The present theories and methods on radar image ortho-rectification home and abroad,and the radar imaging priciple were analyzed synthetically in this paper.The Range-Doppler theory was introduced especially and applied to SAR image ortho-rectification and realized with programs on the computer.At last,an experiment was made with ERS-2 product and the result showed the ortho-rectification method had an higher accuracy and an good result image.It could be applied to SAR image geomatric processing.
出处
《遥感技术与应用》
CSCD
2002年第4期230-234,共5页
Remote Sensing Technology and Application
基金
测绘科技发展基金项目的资助 (项目编号 :2 0 0 10 9)
