基于高分辨SAR图像区域入射角反演及高度提取方法

分析在无成像参数条件下提取单极化高分辨率合成孔径雷达(SAR)图像中的目标高度信息的方法.高分辨率SAR图像中目标信息丰富,可以解译出目标的多种信息,但是通常得到的图像经过了一定的处理,失去了成像参数.在这种情况下,首先依据目标的SAR成像原理,利用目标的阴影和叠掩推导了目标成像时的区域入射角计算公式,再利用此入射角来反演目标的高度信息.最后,利用MiniSAR图像进行了试验分析.

Extracting local incident angle and height of target from high-resolution SAR images

How to extract the height information of targets from high-resolution Synthetic Aperture Radar (SAR) images without any imaging parameters was analysed. The high-resohition SAR images have a lot of information, but the imaging parameters were lost after processing. In this condition, the layerover and shadow of the target were used to deduce the formula for computing the local incident angle of the target, based on the imaging principle of SAR image. With the incident angle information, the height of the target was computed. In the end, the experimenal results with MiniSAR images were analyzed.