基于干涉测量的宽刈幅测高技术及其应用研究

A Interferometric Measurement Technology of Spaceborne Wide Swath Radar Altimeter and Its Applications

基于不同长度基线干涉测量技术提出了一种宽刈幅海洋测高技术。该方法采用两颗小卫星干涉测量,单颗卫星上配置雷达高度计载荷实现系统的宽刈幅测量;双星采用编队飞行控制,实现不同长度基线相结合对观测目标的协同测量,使其共同配合工作。在高精度海面高程测量的同时兼顾陆地测量,实现对全球目标的快速三维成像覆盖测量的同时,使其实现对中尺度涡、海洋洋流等中尺度海洋现象以及海洋风场、海冰测量等方面的应用。

In this paper,a interferometric measurement technology of spaceborne wide swath radar altimeter is proposed.This method adopts two small satellites,which employs one radar altimeter payload on each satellite.There are multiple interferometric baselines during the formation flight.The multibaselines make the method have the capacity that measure three-dimensional images of the ocean and land extended targets fast with higher accuracy.In additions,the system has the advantage of observing some mesoscale phenomenons such as eddy and sea surface currents due to its wide swath.They also have the capacity in the sea surface wind measurements and sea ice shells measurements.