合成孔径雷达SAR是20世纪50年代初提出一种微波成像技术,它能够借助平台的运动实现长孔径综合以达到对观测区域的高分辨率成像。作为一种主动遥感设备,SAR能够实现全天时、全天候、远距离对地观测。干涉合成孔径雷达InSAK是在SAR基础上发展起来的一项遥感技术。InSAR利用两部具有一定视角差的天线进行成像,并对获取的两幅复图像数据进行干涉处理得到干涉相位,经反演得到观测区城的数字高程模型。InSAR以其独特 Synthetic Aperture Radar SAR is a kind of microwave imaging technique proposed in the early 1950s. It can realize the long aperture synthesis by the movement of the platform to achieve the high resolution imaging of the observed area. As an active remote sensing device, SAR can achieve all-weather, all-weather, long-range observation of the Earth. Interfering Synthetic Aperture Radar InSAK is a remote sensing technology developed on the basis of SAR. InSAR uses two antennas with a certain angle of view for imaging, and obtains the interference phase by interfering with the acquired two complex image data, and obtains the digital elevation model of the observation area by inversion. InSAR is unique