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公开(公告)号：US3731122A
公开(公告)日：1973-05-01
申请号：US3731122D
申请日：1971-03-31
Applicant: BENDIX CORP
Inventor： ROSENBAUM E , KLIMCHAK E
Abstract: A field effect transistor has a source-drain circuit which functions as a variable electrical resistance. A memory capacitor has one end connected to the field effect transistor gate and the second end connectable through a switching transistor to ground. Charges are added or subtracted from the capacitor to vary the FET gate bias and thereby the FET drain-source resistance. The switching transistor is effective to either apply the capacitor voltage to the FET gate or alternately to cause the capacitor to apply a pinch-off voltage to the FET gate by either grounding the capacitor''s second end or applying pinch-off voltage to the capacitor''s second end. In either event the charge across the capacitor is unaltered. The electrically controlled weight described is particularly adapted for use in a hyperplane signature recognizer.
Abstract translation: 场效应晶体管具有用作可变电阻的源极 - 漏极电路。 存储电容器的一端连接到场效应晶体管栅极，第二端可通过开关晶体管连接到地。 从电容器添加或减少电荷以改变FET栅极偏置，从而改变FET漏极 - 源极电阻。 开关晶体管有效地将电容器电压施加到FET栅极，或者交替地使电容器通过接地电容器的第二端或将电压钳位电压施加到电容器的第二端而向FET栅极施加夹断电压 。 在任一情况下，电容器两端的电荷不变。 所描述的电控重量特别适用于超平面签名识别器。
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公开(公告)号：US3725928A
公开(公告)日：1973-04-03
申请号：US3725928D
申请日：1971-03-31
Applicant: BENDIX CORP
Inventor： KLIMCHAK E , ROSENBAUM E
CPC classification number: G06K9/6286 , G01S7/412 , G06K9/00986
Abstract: A hyperplane radar signature recognizer consists of a delay line through which a radar signature which is to be classified is propagated. The delay line includes a plurality of time spaced taps at which time spaced points on the radar signature are sampled. Each delay line tap is sampled through an associated electrically controlled weight with the weighted samples being summed to provide a measure of signal classification. The electrically controlled weights are controlled by propagating through the delay line prior to the receipt of the radar signature an amplitude standardized pulse. With all weights disabled so as to present an open circuit to the aforementioned summing network the weights are enabled one at a time in turn, and the output from the summing network compared against a desired weight value. The electrically controlled weight is then adjusted until its value is equal to the desired value. After all the electrically controlled weights have been set to their desired values the signature recognizer is ready to receive the radar signature. The timing logic circuit required to program the adjustment of the electrically controlled weights is also disclosed.
Abstract translation: 超平面雷达签名识别器由延迟线组成，通过该延迟线传播要分类的雷达签名。 延迟线包括多个时间间隔的抽头，在雷达签名上的时间间隔点被采样。 每个延迟线抽头通过相关的电控重量进行采样，加权采样相加以提供信号分类的度量。 电子控制权重通过在接收到雷达签名之前通过延迟线传播振幅标准化脉冲来控制。 在所有权重被禁用以便向上述求和网络呈现开路的情况下，权重依次被一个一个地启用，并且来自求和网络的输出与期望的权重值进行比较。 然后调整电控重量，直到其值等于所需值。 在所有的电控重量已被设置为其期望值之后，签名识别器准备好接收雷达签名。 还公开了对电控重量的调整进行编程所需的定时逻辑电路。
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公开(公告)号：US3803598A
公开(公告)日：1974-04-09
申请号：US18233371
申请日：1971-09-21
Applicant: BENDIX CORP
Inventor： ROSENBAUM E , GABRIELE T , ABERNATHY J , JACKSON H
CPC classification number: G01S7/412 , Y10S367/901
Abstract: A ranging and detecting system such as radar, sonar or the like is arranged to transmit the signature of a desired target. A cross correlation process takes place as the transmitted wave front sweeps past the possible targets. Back-scattered energy is received by a unit having a single optimum bandwidth and a threshold which detects only the desired target.
Abstract translation: 诸如雷达，声纳等的测距和检测系统被布置成传送期望目标的签名。 随着发射波阵面扫过可能的目标，进行互相关处理。 背散射能量由具有单个最佳带宽的单元和仅检测期望目标的阈值接收。
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公开(公告)号：US3781569A
公开(公告)日：1973-12-25
申请号：US3781569D
申请日：1972-02-23
Applicant: BENDIX CORP
Inventor： ROSENBAUM E , MARTIN J
CPC classification number: G01S7/2921
Abstract: A fast time constant circuit includes a delay line which receives video radar returns. Two delay line time spaced taps are connected through an AND gate to an integrator, the output of which is applied to one input of a differential amplifier. An intermediate delay line tap is connected directly to the second differential amplifier input. The filtered video radar returns appear at the output of the differential amplifier.
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