The geometric rectification of satellite SAR image becomes more and more important in order to avoid geometric distortion and locate the image accurately.
而对星载SAR图像进行几何校正处理，消除图像中的各种几何变形，从而实现精确定位也越来越重要。
Abstract : When using the Range-Doppler model for SAR image geometric correction, the error of satellite orbit, imaging parameter and DEM elevation will affect the geometric correction accuracy.
摘要 ：使用距离多普勒模型进行SAR影象几何校正时，卫星轨道误差、系统成像参数误差和DEM高程的误差会影响几何校正精度。
ABSTRACT :With the rapid development of satellite astronomy technique, Synthetic aperture radar (SAR) is widely applied, and more and more people pay attention to the SAR image processing.
摘要：随着航天技术的飞速发展，合成孔径雷达（SAR）的应用越来越广泛， SAR图像的分析处理也备受关注。
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