公开(公告)号：US4807174A

公开(公告)日：1989-02-21

申请号：US781241

申请日：1985-09-27

申请人： John P. Costas

发明人： John P. Costas

IPC分类号： G06F7/544 ,  G06F17/15 ,  H03H17/02 ,  G06F15/31

CPC分类号： H03H17/0227 ,  G06F7/5443 ,  H03H17/0223

摘要： A conversion apparatus for quantizing a set of weights for a weighted sum signal processing system, including a predetermined number of conversion arrays operable in succession and a transfer and monitor circuit. Each conversion array stores a plurality of values to be converted, quantizes the values to be converted to produce a set of discrete values and a set of error values and replaces the contents of the means for storing with the set of discrete values. Each conversion array also combines the set of error values with a set of interpolator weights to form a transformed error set. The transfer and monitor circuit successively combines the transformed error set most recently formed with the contents of a successive conversion array, monitors the successively produced sets of error values, and halts the successive conversions and combinations when a predetermined condition is satisfied. The invention also features a method of quantizing such a set of weights.

摘要翻译： 一种用于量化加权和信号处理系统的权重集合的转换装置，包括可连续操作的预定数量的转换阵列和传送和监视电路。 每个转换阵列存储多个待转换的值，量化要转换的值以产生一组离散值和一组误差值，并用该组离散值替换用于存储的装置的内容。 每个转换阵列还将错误值集合与一组内插器权重组合以形成转换的错误集合。 传输和监视电路连续地组合最近形成的变换后的错误集合与连续转换阵列的内容，监视连续产生的误差值集合，并且当满足预定条件时停止连续的转换和组合。 本发明还具有量化这样一组权重的方法。

公开(公告)号：US4349915A

公开(公告)日：1982-09-14

申请号：US230813

申请日：1981-02-02

申请人： John P. Costas

发明人： John P. Costas

IPC分类号： H04B7/005 ,  H04L1/04

CPC分类号： H04L1/04 ,  H04B7/005 ,  Y10S367/904

摘要： Apparatus is disclosed for reproducing transmitted information which is subject to multipath delay spread effects and doppler frequency-shift effects. The information is transmitted as a series of modulated information pulses of differing nominal frequencies. The nominal frequencies of successive pulses are repeatedly shifted through a predetermined sequence of frequencies. Arrivals of the transmitted pulses are detected at a receiver and are processed to determine the frequencies to which the transmitted pulses are doppler shifted and the multipath delays of each pulse. This frequency and delay information is then used to reproduce the transmitted information from the arrival pulses.

摘要翻译： 公开了用于再现经受多径延迟扩展效应和多普勒频移效应的发送信息的装置。 该信息作为一系列具有不同标称频率的调制信息脉冲发送。 连续脉冲的标称频率通过预定的频率序列重复移动。 发送脉冲的到达在接收机处被检测，并被处理以确定所发送的脉冲是多普勒偏移的频率和每个脉冲的多径延迟。 然后，该频率和延迟信息用于从到达脉冲再现发送的信息。

公开(公告)号：US5652594A

公开(公告)日：1997-07-29

申请号：US694159

申请日：1967-12-28

申请人： John P. Costas

发明人： John P. Costas

IPC分类号： G01S7/292 ,  G01S7/527 ,  G01S13/10 ,  G01S15/10 ,  G01S7/34 ,  G01S13/50

CPC分类号： G01S15/107 ,  G01S7/2922 ,  G01S13/106 ,  G01S15/108 ,  G01S7/527

摘要： A signal processor is described for object detection systems such as radar and sonar systems in which wave energy is transmitted and received as a train of discrete pulses of frequencies stepped in predetermined sequence. The received signal processor comprises a plurality of processing channels of number corresponding to the number of sub-pulses in the transmitted pulse train, each channel including frequency selective means such that signal returns of frequencies corresponding to but one of the transmitted sub-pulses are processed by that channel. Means are provided for simultaneously sampling the signal levels in all channels and indicating that channel in which the signal level is greatest, this sampling process being serially repeated at times related to each of the times of transmission of one sub-pulse of the train. The time sequence thus generated of the greatest amplitude signals in the several processor channels is compared or tallied against the sequence in which the sub-pulses of corresponding frequencies were originally transmitted, the occurrence of a match being taken as indicating a target at the range for which the sampling times were set.

摘要翻译： 描述了用于诸如雷达和声纳系统的对象检测系统的信号处理器，其中波能量以预定顺序步进的频率的离散脉冲串被发送和接收。 接收到的信号处理器包括与发送的脉冲串中的子脉冲数相对应的多个处理通道，每个通道包括频率选择装置，使得对应于所发送的子脉冲之一的频率的信号返回被处理 通过该频道。 提供了用于同时对所有信道中的信号电平进行采样并指示信号电平最大的信道的装置，该采样过程在与列车的一个子脉冲的每个传输次数相关的时间被串行重复。 这样生成的几个处理器通道中的最大振幅信号的时间序列与最初发送相应频率的子脉冲的序列进行比较或计数，将匹配的出现视为指示在 取样时间设定。

公开(公告)号：US4811259A

公开(公告)日：1989-03-07

申请号：US826804

申请日：1986-02-06

申请人： John P. Costas

发明人： John P. Costas

IPC分类号： G06F7/544 ,  G06F17/15 ,  H03H17/02 ,  G06F7/38

CPC分类号： H03H17/0227 ,  G06F7/5443 ,  H03H17/0223

摘要： A high-speed, limited-shift signal processor for quantized weighting of an input signal, which receives the input signal and delays is to provide a plurality of delay outputs and selects a number of the delay outputs to be modified by limited shifting of their place values. The limited-shift signal processor generates at least one weighted value from each delay output, including shifting the digit positions of each selected delay output to shift its place value, and sums each of the place-value-shifted delay outputs to obtain a weighted sum signal of the input signal.

摘要翻译： 用于接收输入信号和延迟的输入信号的量化加权的高速限幅移位信号处理器是提供多个延迟输出并通过其位置的有限移位来选择要修改的多个延迟输出 价值观。 有限移位信号处理器从每个延迟输出产生至少一个加权值，包括移位每个所选择的延迟输出的数字位置以移动其位置值，并且将每个位值移位的延迟输出相加以获得加权和 输入信号的信号。

公开(公告)号：US4047172A

公开(公告)日：1977-09-06

申请号：US257879

申请日：1972-05-30

申请人： Lowell W. Bauer ,  John P. Costas

发明人： Lowell W. Bauer ,  John P. Costas

IPC分类号： G01S7/292 ,  G01S7/527 ,  G01S7/28 ,  G01S9/44 ,  G01S9/66

CPC分类号： G01S7/2923 ,  G01S7/527 ,  Y10S367/901

摘要： A signal processor is described for pulse-echo systems such as sonar and seismographic systems in which wave energy is transmitted and received as a train of discrete pulses of different frequencies ordered in predetermined sequence. The receiver comprises a plurality of signal processing channels each of which selects one subpulse and delays it through an interval of duration inversely related to its time position in the pulse train, to thus bring the received subpulse signals into time alignment so that when added their summed amplitude constitutes the target signal output. For interference level compensation, a running estimate is made of the interference level in each of the signal processing channels, and the channel signals then are weighted by this interference estimate as an inverse function of its magnitude. Interference level compensation in this manner provides optimized target visibility but may result in variation of signal levels in the doppler processing output channels, both channel-to-channel and within each channel as a function of range, so that if the processor output were directly displayed target returns of equal strength could be given unequal prominence in the display depending on their specific range and doppler values. Normalization to avoid this is accomplished by feed-forward of running estimates of the mean and variance signal values and combination thereof in particular relationship with the processor output to yield zero mean and unit variance in signal level outputs of the processor.

摘要翻译： 描述了用于诸如声纳和地震系统的脉冲回波系统的信号处理器，其中波能量以预定顺序排列成不同频率的离散脉冲串来发送和接收。 接收机包括多个信号处理通道，每个信号处理通道选择一个子脉冲并将其延迟通过与脉冲序列中其时间位置反向相关的持续时间间隔，从而使接收到的子脉冲信号成为时间对准，使得当它们相加时 幅度构成目标信号输出。 对于干扰电平补偿，对每个信号处理信道中的干扰电平进行运行估计，然后通过该干扰估计将信道信号加权为其幅度的反函数。 以这种方式的干扰电平补偿提供了优化的目标可视性，但是可能导致多普勒处理输出通道中的信道电平在通道间和每个通道内的变化作为范围的函数，使得如果处理器输出被直接显示 根据其特定范围和多普勒值，显示器中具有相等强度的目标回报可能被赋予不相等的突出显着性。 规范化以避免这种情况通过平均值和方差信号值的运行估计的前馈以及其与处理器输出的特定关系的组合来实现，以产生处理器的信号电平输出中的零平均值和单位方差。

公开(公告)号：US4835724A

公开(公告)日：1989-05-30

申请号：US828647

申请日：1986-02-12

申请人： John P. Costas

发明人： John P. Costas

IPC分类号： G06F7/544 ,  G06F17/15 ,  H03H17/02

CPC分类号： H03H17/0227 ,  G06F7/5443 ,  H03H17/0223

摘要： A conversion apparatus for quantizing an initial set of weights for a weighted sum signal processing system having one or more conversion arrays. Each conversion array stores a plurality of values to be converted, quantizes the values that are to be converted to produce a set of discrete values and a set of error values, and replaces the stored values with the set of discrete values. Each conversion array combines the set of error values with a set of transformation weights to form one or more transformed error sets. The conversion apparatus further includes a transfer device for successively combining the one or more transformed error sets most recently formed with the contents of a successive conversion array. The transfer device monitors the successively produced sets of error values and halts the successive conversions and combinations when a predetermined condition is satisifed. The invention also features methods of quantizing initial sets of weight.

摘要翻译： 一种用于量化具有一个或多个转换阵列的加权和信号处理系统的初始权重集合的转换装置。 每个转换阵列存储要转换的多个值，量化要转换的值以产生一组离散值和一组误差值，并用所述一组离散值替换存储的值。 每个转换阵列将误差值集合与一组变换权重组合以形成一个或多个变换的误差集合。 该转换装置还包括用于连续组合最近形成的一个或多个变换后的错误集合与转换阵列的内容的传送装置。 转移装置监测连续产生的误差值集合，并且当满足预定条件时停止连续的转换和组合。 本发明还具有量化初始重量集的方法。

公开(公告)号：US4916453A

公开(公告)日：1990-04-10

申请号：US332719

申请日：1989-04-03

申请人： John P. Costas

发明人： John P. Costas

IPC分类号： H01Q3/24

CPC分类号： H01Q3/24

摘要： An improved spatial filtering system includes a plurality of tracker modules for isolating selected signals from an array of signal data values collected from a signal environment by a plurality of receiver elements and stored in a residual signal storage element. Each tracker module includes a generating module for generating, from the array of signal data values, estimated contributions of a selected signal at each of the plurality of receiver elements. Each tracker module also includes an output signal estimation module, connected to the generating module, for determining, based on the estimated contributions, an output signal that is representative of the selected signal. A system control unit enables at least a first tracker module to selectively read the array of signal data values and to selectively combine the generated estimated contributions with the array of signal data values in the residual signal storage element to alter the array of signal data values during the generation of estimated contributions by other tracker modules.

摘要翻译： 改进的空间滤波系统包括多个跟踪器模块，用于从多个接收器元件从信号环境收集的信号数据值的阵列中分离所选择的信号，并存储在残余信号存储元件中。 每个跟踪器模块包括生成模块，用于从所述信号数据值阵列生成在所述多个接收器元件中的每一个处所选择的信号的估计贡献。 每个跟踪器模块还包括连接到生成模块的输出信号估计模块，用于基于所估计的贡献来确定代表所选信号的输出信号。 系统控制单元使得至少第一跟踪器模块能够选择性地读取信号数据值阵列，并且选择性地将所生成的估计贡献与残差信号存储元件中的信号数据值阵列组合，以改变信号数据值阵列 其他追踪器模块估计的贡献的产生。