合成孔径雷达遥感技术及其应用

简叙合成孔径雷达（ＳＡＲ）的原理、应用和最新发展，以最常用的二维成像技术为例，首先说明横向高分辨尺寸的合成孔径的原理，再指出用大带宽信号取得纵向（距离向）高分辨尺寸。在应用方面，列出了ＳＡＲ的十类主要的民用和五大类主要的军用。文中简要叙述了９９年代星载ＳＡＲ的热潮，以及我国也将在２００３年左右发射星载ＳＡＲ上天。最后大中简述了ＳＡＲ技术的两种最新发展，三维成像和运动目标检测。

Remote Sensing Technique in Synthetic Aperture Radar and Its Application

This article begins with brief introduction of principle, application and latest development of synthetic aperture radar. By taking the example of common two-dimension imaging technique, principle of SAR with high transversal resolution is first explained and then way of high longitudinal (range direction) resolution is given. Ten civilian categories and five military categories of its application are listed. The upsurge of satellite-borne SAR in 90s is reviewed and that China will lauch its satellite-borne SAR around 2003 is predicted. The paper concludes with two latest technique developments in SAR, three-dimension imaging and moving target Indication.