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美国空军为了提高 U-2R/TR-1A高空侦察机对地面活动目标的探测性能和精确定位能力,正对这种飞机的机载远程合成孔径雷达（SAR）进行试验性改进。 这种代号为ASARS-2的先进合成孔径雷达系统,是由休斯飞机公司制造的.该系统安装在一些U-2R/TR-1A的机头上,用于在昼夜间和恶劣气象条件下提供高分辨率的雷达地图。 休斯公司称,ASARS-2雷达装有活动目标指示器和固定目标指示器,在采用搜索方式工作时,可实现对地面的大范围覆盖。但在以小视场工作对小区域进行高分辨率探测时,只
The U.S. Air Force is tentatively improving its airborne Remote Synthetic Aperture Radar (SAR) to improve the detection capability and precision positioning of U-2R / TR-1A high-altitude reconnaissance aircraft on ground targets. The Advanced Synthetic Aperture Radar System, code-named ASARS-2, manufactured by Hughes Aircraft Corp. The system is installed on the heads of some U-2R / TR-1As for use in daytime and bad weather conditions Provide high-resolution radar maps. According to Hughes, the ASARS-2 radar is equipped with a moving target indicator and a fixed target indicator to achieve a wide coverage of the ground when working in a search mode. However, when working in a small field of view for high-resolution detection of small areas, only