基本信息:
- 专利标题： 一种基于改进理想滤波器的SAR方位模糊抑制方法
- 专利标题（英）：SAR azimuth ambiguity suppression method based on improved ideal filter
- 申请号：CN201310098966.9 申请日：2013-03-26
- 公开(公告)号：CN103245949A 公开(公告)日：2013-08-14
- 发明人： 韩冰 , 吴正升 , 张永军 , 胡玉新 , 雷斌 , 付琨 , 丁赤飚
- 申请人： 中国科学院电子学研究所
- 申请人地址： 北京市海淀区北四环西路19号
- 专利权人： 中国科学院电子学研究所
- 当前专利权人： 中国科学院电子学研究所
- 当前专利权人地址： 北京市海淀区北四环西路19号
- 代理机构： 北京理工大学专利中心
- 代理人： 高燕燕
- 主分类号： G01S13/90
- IPC分类号： G01S13/90
The invention provides an SAR azimuth ambiguity suppression method based on improved ideal filter, which is suitable for a point target and a non-point target, is independent of a specific signal mode, and meanwhile, is suitable for the realization of a rapid engineering of azimuth ambiguity suppression in a large area scene, and dispenses with processing in sections. The method comprises the following steps: step one, generating a low ambiguity image, utilizing signals which are relatively low in ambiguity energy and within Doppler frequency range to generate a reference image with low resolution and low ambiguity energy, and in registration with finished amplitude of an original image to-be-processed; step two, generating an ambiguity signal image, utilizing the ideal filter algorithm to finish 0-degree and 180-degree filtering, and subtracting results to obtain a modulus so as to obtain the ambiguity signal image; step three, generating an ambiguity indicating image; and step four, generating an ambiguity suppression result image.
公开/授权文献:
- CN103245949B 一种基于改进理想滤波器的SAR方位模糊抑制方法 公开/授权日：2014-12-03