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为了解美国合成孔径雷达(SAR)技术研发特点,对美国SAR相关专利进行检索和筛选,了解其主要研究力量、研究方向和政府资助领域等情况,并对重点专利开展技术手段分析。结果表明:美国SAR技术的主要研究力量是雷锡恩公司、桑迪亚公司、洛马公司、哈里斯公司和波音公司等企业,其研究范围涉及双基地或多基地SAR、干涉SAR、逆SAR和聚束SAR等技术;在具体技术方面,SAR成像质量的提高仍然是美国SAR技术最重要的研究方向,其次是SAR目标识别技术,再次是轻质小型低成本技术。
In order to understand the R & D features of SAR technology, the paper searched and screened SAR-related patents in the United States to understand its main research strength, research direction and government-funded fields, and carried out technical analysis on key patents. The results show that the main research strength of SAR technology in the United States is Raytheon Corporation, Sandia, Loma, Harris and Boeing. The scope of its research covers bistatic or multi-base SAR, interferometric SAR, inverse SAR And beam spotting SAR technology. In terms of specific technologies, the improvement of SAR imaging quality is still the most important research direction of SAR technology in the United States, followed by SAR target recognition technology and again the light, small and low cost technology.