公开(公告)号：US4244026A

公开(公告)日：1981-01-06

申请号：US957908

申请日：1978-11-06

申请人： Frank R. Dickey, Jr.

发明人： Frank R. Dickey, Jr.

IPC分类号： G01S15/50 ,  G01P5/24 ,  G01S13/60 ,  G01S15/60 ,  G01P3/42 ,  G01S15/58 ,  G06F15/336

CPC分类号： G01P5/24 ,  G01S15/60

摘要： The velocity measuring correlation sonar disclosed employs a planar array of receiving transducers spaced in the directions along which velocity components parallel to the plane of the array are to be measured, and includes means for transmitting a series of two or more identical pulses which are separated by a time interval selected in accordance with transducer separation and the estimated velocity components so as to place the expected point of maximum correlation of the echo return from one pulse with that from a following pulse within the boundaries of a set of spatial sample points representing relative spacings between pairs of receiving transducers. Correlation measurements are made corresponding to these relative spacings of the receiving transducers, with each such measurement being treated as a sample of a space-time correlation function of predetermined shape. The location of the peak of this function in each of the directions of interest is estimated by curve fitting techniques, and yields the velocity vector in that direction scaled by the inter-pulse time interval. The velocity component normal to the plane of the array may be derived by estimating the location of the correlation peak as a function of time and/or phase, using similar curve fitting techniques.

摘要翻译： 所公开的速度测量相关声纳使用接收换能器的平面阵列，沿着与该阵列的平面平行的速度分量要被测量的方向间隔开，并且包括用于发射一系列两个或更多个相同的脉冲的装置， 根据换能器间隔选择的时间间隔和估计的速度分量，以便将来自一个脉冲的回波返回的预期最大相关点与来自表示相对间隔的一组空间采样点的边界内的跟随脉冲 在接收换能器对之间。 对应于接收换能器的这些相对间隔进行相关测量，每个这样的测量被视为具有预定形状的时空相关函数的样本。 通过曲线拟合技术来估计每个感兴趣方向中该函数的峰值位置，并且产生由该脉冲间隔间隔缩放的该方向上的速度矢量。 使用类似的曲线拟合技术，可以通过估计相关峰的位置作为时间和/或相位的函数来导出垂直于阵列平面的速度分量。

公开(公告)号：US6166689A

公开(公告)日：2000-12-26

申请号：US63113

申请日：1970-08-12

申请人： Frank R. Dickey, Jr. ,  Judson J. Gostin ,  Gene P Hammel ,  Kalevi Hoobert Huhta ,  Ayhan M. Vural

发明人： Frank R. Dickey, Jr. ,  Judson J. Gostin ,  Gene P Hammel ,  Kalevi Hoobert Huhta ,  Ayhan M. Vural

IPC分类号： G01S3/04 ,  G01S3/46 ,  G01S3/74 ,  G01S3/80 ,  G01S3/801 ,  G01S3/808 ,  G01S7/28 ,  G01S13/02 ,  H01Q3/26 ,  G01S3/16 ,  H01Q3/22

CPC分类号： H01Q3/2605 ,  G01S3/043 ,  G01S3/46 ,  G01S3/74 ,  G01S3/8006 ,  G01S3/801 ,  G01S3/808 ,  G01S7/2813 ,  G01S2013/0245

摘要： An adaptive beamformer and signal processor for sonar and other signal receptor arrays, in which beamforming is accomplished by correlation feedback loops providing matched weighting across the array. To constrain the adaptive beamformer thus comprised against cancellation of useful signals from a particular angular region, which normally is the beam mainlobe or boresight region, one or more spatial notch filters are interposed within the correlation feedback loops for preventing signal suppression within such angular region.

摘要翻译： 用于声纳和其他信号接收器阵列的自适应波束形成器和信号处理器，其中波束成形由相关反馈回路实现，在阵列上提供匹配的加权。 为了约束自适应波束成形器，由此抵消来自通常是波束主瓣或视轴区域的特定角度区域的有用信号的消除，在相关反馈回路内插入一个或多个空间陷波滤波器，以防止在该角度区域内的信号抑制。

公开(公告)号：US4608569A

公开(公告)日：1986-08-26

申请号：US530626

申请日：1983-09-09

申请人： Frank R. Dickey, Jr. ,  William A. Penn

发明人： Frank R. Dickey, Jr. ,  William A. Penn

IPC分类号： G01S7/28 ,  G01S7/527 ,  G01S3/86

CPC分类号： G01S7/2813 ,  G01S7/527

摘要： The present invention relates to an adaptive signal processor for reducing interference in ranging and communication systems resulting from jamming or multipath reception. More particularly, an optical signal processor is provided in which a first time correlation is performed between the receive signal derived from a direction antenna and an interference signal derived from one or more auxiliary omnidirectional antennas in an acousto-optical device to obtain one or more corresponding weighting functions stored as a function of signal delay. The auxiliary signal is then correlated in a spatial correlation process in which the auxiliary signals are delayed and multiplied with the weights and the result spatially integrated to derive the predicted interference. The predicted interference is then subtracted from the main signal in an adaptive feedback loop wherein the predicted signal is made to approach equality with the interference. The system achieves good cancellation by correcting for multiple arrival times and by retaining the phase and amplitude information of the original carriers throughout the optical process.

摘要翻译： 本发明涉及一种自适应信号处理器，用于减少由干扰或多路径接收产生的测距和通信系统中的干扰。 更具体地，提供了一种光信号处理器，其中在从光学设备导出的接收信号和从一个或多个辅助全向天线导出的干扰信号之间执行第一时间相关以获得一个或多个对应的 作为信号延迟的函数存储的加权函数。 然后，辅助信号在空间相关处理中被相关联，其中辅助信号被延迟并与权重相乘，并且结果被空间积分以导出预测的干扰。 然后在自适应反馈环路中从主信号中减去预测的干扰，其中使预测信号与干扰接近相等。 该系统通过校正多个到达时间并通过在整个光学过程中保持原始载波的相位和振幅信息来实现良好的抵消。