The images above were acquired by the Advanced Synthetic Aperture Radar (ASAR) on the European Space Agency's Envisat satellite on March 11 and 16, 2011.

上面两幅图是欧洲空间组织环境卫星的先进合成孔径雷达(ASAR)于2011年3月11日和16日拍摄的照片。

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NEW DELHI - India on April 20 carried out the accelerated launch of its Risat-2, a military surveillance satellite built with help from Israel and carrying an Israeli synthetic-aperture radar.

印度于4月20日发射其Risat–2，该军事侦察卫星是在以色列帮助下建造的，携带一部以色列合成孔径雷达。

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Satellite attitude stability is a very important parameter for the design of satellite platform of synthetic aperture radar.

姿态指向稳定度是设计合成孔径雷达卫星平台的重要参数。

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