从美国合成孔径雷达专利看其技术研发特点

Analysis of the Research Characteristics of American SAR from the Perspective of Patents about SAR Applied in USA

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。

To find out the research characteristics of American SAR, analysis of patents is presented by searching and selecting patents about SAR applied in USA. The main research power, research direction and the technology field of American government funded about SAR has been discovered. Also, the spe- cific technical ways of patents about SAR is found out. The results show that the main research power of American SAR are companies like Raytheon, Sandia, Lockheed, Harris and Boeing, and the research include bistatic or muhistatic SAR, interferometric SAR, inverse SAR and spotlight SAR. With regard to the specific technology, improving the quality of SAR image is the most important research direction of A- merican SAR, the second is object recognition, the third is lighter, smaller and cheaper.