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1. 发明授权

US06678208B2 Range computations for correlation speed sensor 有权
标题翻译：相关速度传感器的范围计算
公开(公告)号：US06678208B2
公开(公告)日：2004-01-13
申请号：US10225477
申请日：2002-08-20
申请人： Andrew M. Sifferman , Roger H. Tancrell , Stephen G. Boucher
发明人： Andrew M. Sifferman , Roger H. Tancrell , Stephen G. Boucher
IPC分类号： G01S1560
CPC分类号： G01S7/526 , G01P5/22 , G01S15/58 , G01S15/60
摘要： A time difference between two similar but time-shifted signals is determined using a difference function. For example, similar but time-shifted first and second signals are sampled to generate a discrete mathematical function whose discrete sample points define overlapping ranges. Typically, at least one of the multiple overlapping ranges defined by sample points of the discrete mathematical function can be used to interpolate a time difference between the first and second signals.
摘要翻译：使用差分函数确定两个相似但时间偏移的信号之间的时间差。例如，类似但时移的第一和第二信号被采样以产生其离散采样点定义重叠范围的离散数学函数。通常，可以使用由离散数学函数的采样点定义的多个重叠范围中的至少一个来内插第一和第二信号之间的时间差。

2. 发明授权

US06804167B2 Bi-directional temporal correlation SONAR 有权
标题翻译：双向时间相关SONAR
公开(公告)号：US06804167B2
公开(公告)日：2004-10-12
申请号：US10440524
申请日：2003-05-19
申请人： Anthony L. Scoca , James G. Huber , Barry S. Schwartz
发明人： Anthony L. Scoca , James G. Huber , Barry S. Schwartz
IPC分类号： G01S1560
CPC分类号： G01S15/60
摘要： A temporal correlation SONAR calculates the velocity and position of a water navigable craft. A first pulse and a second set of pulses are transmitted towards an ocean bottom. A tetrad of hydrophones on the craft receives echoes of the pulses. A correlation between the first pulse received on one hydrophone with the second pulses received on another hydrophone produces correlation points, for which a correlogram is generated. The distance between the hydrophones is divided by twice the time value at the peak of the correlation to calculate the velocity of the vessel. Another correlation is generated for hydrophones pairs that are positioned diagonally from one another, and maximum correlation values, along with hydrophone angles, are used to calculate athwart-ship velocity.
摘要翻译：时间相关性SONAR计算水导航船的速度和位置。第一脉冲和第二组脉冲被发送到海底。船上的四分之一水听器接收脉冲的回波。在一个水听器上接收到的第一个脉冲与在另一个水听器上接收的第二个脉冲之间的相关性产生相关点，产生相关图。水听器之间的距离除以相关峰值处的时间值的两倍，以计算容器的速度。对于彼此对角定位的水听器对，产生另一相关性，并且使用最大相关值以及水听器角度来计算偏航速度。

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