| 专利名称 | Method of signal processing for high resolution bathymetric sidescan sonar | 申请号 | US20060490078 | 专利类型 | US | 公开（公告）号 | US2007091723 | 公开（授权）日 | 2007.04.26 | 申请（专利权）人 | 中国科学院声学研究所 | 发明（设计）人 | ZHU WEIQING (CN);LIU XIAODONG (CN);XU WEN (CN) | 主分类号 | G01S15/89 | IPC主分类号 | G01S15/89;G01S15/00 | 专利有效期 | Method of signal processing for high resolution bathymetric sidescan sonar 至Method of signal processing for high resolution bathymetric sidescan sonar | 法律状态 | 说明书摘要 | A processing method of this invention relates to an angle of arrival estimation technique, where by a high resolution bathymetric sidescan sonar signal process method it measure the micro-geomorphy of the sea bottom. This is the multi-subarray sub-space fitting method. The invention shows that when the array elements number is fixed, no matter there is mutual coupling or not between array elements, there exists one sub-array which has the smallest phase estimation standard deviation, the method of this invention overcomes the phase error caused by mutual coupling and enhances the measurement precision. |
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