... radar assisted pilotage 雷达引航 radar astronomy 雷达天文 radar astronomy 雷达天文雷达天文学 ...
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Inverse Aperture Radar (ISAR) can image non-cooperative moving targets such as aircrafts, ships and celestial objects over a long distance under all weather and all day. It is of particular interest for strategic defense, anti-submarine warfare and radar astronomy.
逆合成孔径雷达(ISAR)能够对飞机、舰艇、天体等运动目标进行全天时、全天候、远距离成像,在战略防御、战术武器、反卫星侦察以及雷达天文学中都具有重要应用价值。
参考来源 - 舰船目标ISAR成像中的转动参数估计·2,447,543篇论文数据，部分数据来源于NoteExpress
他认为，人类运用雷达天文学探测小行星和金星等天体，早已经发射出可以被外星智慧生物接收到的信号。
He argues that radar astronomy, which is used to probe things like asteroids and the surface of Venus, already gives off signals that could be picked up by aliens.
NASA的雷达天文学家周五发现了它的轨迹，并立即将它的位置精确至一公里以内的区域，比此前最好的估计精确了50倍。
NASA radar astronomers picked up its track on Friday and were immediately able to narrow its position to within one kilometer — 50 times better than their previous best estimate.
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。
The technique has been highly successful in radio astronomy, and in both satellite and aircraft borne radar.
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