国外合成孔径雷达卫星发展趋势分析

Analysis of the SAR Satellite Development Tendency in the World

合成孔径雷达（SAR）卫星能克服云雾雨雪和夜暗条件的限制对地面目标成像，可全天时、全天候、高分辨率、大幅面对地观测，这对于观测长年受云覆盖的地区尤为重要。在军事侦察、军事测绘及诸多民用领域可发挥重要作用，近年来受到世界各国高度重视并得到迅速发展。

Synthetic aperture radar （SAR） satellite that can see the ground targets through the cloud and at night will be used for large scale earth observation in all-weather, all-time and with highresolution, it is particularly important for observation of many areas affected by cloud cover, it differs from other optical sensors which is a significant feature. In military reconnaissance and numerous civilian and military mapping areas, it can play an important role in recent years and has been attracted interest in the world.