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1. 发明授权

US5946272A Image conversion for a scanning toroidal volume search sonar 失效
标题翻译：扫描环形体积搜索声纳的图像转换
公开(公告)号：US5946272A
公开(公告)日：1999-08-31
申请号：US138053
申请日：1998-08-17
申请人： Robert J. McDonald , Jo Ellen Wilbur , Robert C. Manning , Lisa B. Tubridy
发明人： Robert J. McDonald , Jo Ellen Wilbur , Robert C. Manning , Lisa B. Tubridy
IPC分类号： G01S7/52 , G01S7/62 , G01S15/89
CPC分类号： G01S7/52003 , G01S7/6236
摘要： A method is provided to compress and display received data from a toroidalolume search sonar (TVSS) in terms of horizontal range. For any TVSS receive beam having a horizontal component projection that is equal to or greater than a selected horizontal range, the data values occurring at that selected horizontal range are averaged to form a compressed data value. Range dependent weight factors are applied during the averaging process so that the effects of surface and bottom reverberation do not bias the compressed data value. The compressed data value can then be displayed as a function of horizontal range for a series of sonar pings in order to provide a time history.
摘要翻译：提供了一种在水平范围内从环形体积搜索声纳（TVSS）压缩和显示接收数据的方法。对于具有等于或大于所选水平范围的水平分量投影的任何TVSS接收波束，在所选择的水平范围处出现的数据值被平均以形成压缩数据值。在平均过程中应用范围依赖的权重因子，使得表面和底部混响的影响不会偏压压缩的数据值。然后可以将压缩数据值显示为一系列声纳波的水平范围的函数，以便提供时间历程。

2. 发明授权

US5781504A Shallow water beamforming methodology for toroidal volume search sonar 失效
标题翻译：用于环形体积搜索声纳的浅水波束成形方法
公开(公告)号：US5781504A
公开(公告)日：1998-07-14
申请号：US869722
申请日：1997-06-05
申请人： Robert C. Manning , Robert J. McDonald , Jo Ellen Wilbur
发明人： Robert C. Manning , Robert J. McDonald , Jo Ellen Wilbur
IPC分类号： G01S7/527 , G01S15/04 , G01S15/42 , G01S15/89
CPC分类号： G01S15/42 , G01S15/04 , G01S7/527
摘要： An apparatus and method for beamforming for a toroidal volume search sonar.onar array vehicle motion is used to reduce reverberation by fixing beams geometrically in space to prevent beam contact, prior to a specified range, with the sea surface or sea bottom interfaces. Reverberation is further reduced by creating a composite beam from one scanned beam containing the target dominated by surface reverberation and another dominated by bottom reverberation. A correlation and averaging procedure is applied to the two scanned beams to further reduce the reverberation in the composite beam. To further reduce reverberation, the two beams selected for correlation and averaging processing are chosen such that the number of common elements associated with the two beams is a minimum within a given angular separation.
摘要翻译：用于环形体积搜索声纳的波束成形的装置和方法。声纳阵列车辆运动用于通过几何地将光束固定在空间中来减少混响，以防止在特定范围内与海面或海底界面的光束接触。通过从包含由表面混响主导的目标的一个扫描光束创建复合光束并且另一个由底部混响所支配的混响进一步减小混响。将相关和平均程序应用于两个扫描光束，以进一步减少复合光束中的混响。为了进一步减少混响，选择用于相关和平均处理的两个波束，使得与两个波束相关联的公共元件的数量在给定的角度间隔内是最小的。

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