Japan on Wednesday launched a new generation X-ray astronomysatellite aiming to reveal the structure of the universe and physics at extreme conditions in space.
本周三，日本发射一颗新一代X射线天文卫星，旨在揭示宇宙结构与太空中极端条件下的物理现象。
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The technique has been highly successful in radio astronomy, and in both satellite and aircraft borne radar.
该技术在射电天文学、卫星雷达和机载雷达上均获得了巨大成功。
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ABSTRACT :With the rapid development of satelliteastronomy technique, Synthetic aperture radar (SAR) is widely applied, and more and more people pay attention to the SAR image processing.