公开(公告)号：US3879730A

公开(公告)日：1975-04-22

申请号：US12223349

申请日：1949-10-19

Applicant: RCA CORP

Inventor： ARSEM A DONALD

IPC: G01S13/70 ,  G01S9/14

CPC classification number: G01S13/70

Abstract: 2. A pulse-echo distance determining system comprising means for transmitting a succession of pulses at a recurring frequency, means for receiving said pulses after reflection from a distant object, said receiving means consisting of a single channel that includes a gating circuit, means for producing gating pulses that recur at the same repetition rate as the received pulses but which have alternate pulses starting late in the gating pulse repetition cycle whereby there are produced early gating pulses that have a repetition rate equal to one-half the repetition rate of said received pulses and late gating pulses that have a repetition rate equal to one-half the repetition rate of said received pulses; means for applying said gating pulses to said gating circuit whereby received pulses reflected from said object appear in the output circuit of the receiving means when said received pulses and said gating pulses occur simultaneously or overlap in time, means for obtaining a control voltage that is a function of the relative amplitudes of two successive output pulses from the receiving means, and means for shifting the phase or timing of said gating pulses as a function of said control voltage and for holding said gating pulses in an overlapped time relation with respect to the received pulses as the distance to said object changes, and means for producing an indication that is a function of the phasing of said gating pulses whereby distance to the reflecting object is indicated.

Abstract translation: 2.一种脉冲回波距离确定系统，包括用于以循环频率发送一连串脉冲的装置，用于在从远距离物体反射之后接收所述脉冲的装置，所述接收装置由包括门控电路的单个信道组成， 产生门控脉冲，其以与接收脉冲相同的重复频率重复，但是在门控脉冲重复周期中具有开始迟到的交替脉冲，由此产生具有等于所接收的重复率的一半重复率的早期门控脉冲 脉冲和后期选通脉冲，其重复率等于所述接收脉冲的重复率的一半; 用于将所述选通脉冲施加到所述选通电路的装置，由此当所述接收脉冲和所述选通脉冲同时发生或与时间重叠时，从所述对象反射的接收脉冲出现在所述接收装置的输出电路中，用于获得控制电压为 来自接收装置的两个连续输出脉冲的相对幅度的函数，以及用于根据所述控制电压移动所述选通脉冲的相位或定时的装置，以及用于将所述选通脉冲保持在与接收的重叠时间关系中 与所述对象的距离的脉冲改变，以及用于产生作为所述选通脉冲的相位的函数的指示的装置，从而指示到反射对象的距离。

公开(公告)号：US3882407A

公开(公告)日：1975-05-06

申请号：US15485550

申请日：1950-04-08

Applicant: RCA CORP

Inventor： ARSEM A DONALD

IPC: G01S7/03 ,  H03G3/26 ,  H01J19/82

CPC classification number: G01S7/034 ,  H03G3/26

Abstract: 1. In combination, an amplifier for amplifying applied signals comprising an amplifier tube having an anode, a cathode, and at least one control grid, an anode resistor through which an operating voltage is applied to said anode, means for biasing said tube so that it has good transconductance, whereby there is subbstantial anode current flow in the absence of applied signals, said tube having an input circuit through which signal may be applied to said tube with its polarity in the direction to increase the flow of anode current in said tube, said tube having a blanking circuit through which a blanking pulse may be applied to drive said tube to anode current cut-off, means for applying said blanking pulse to said blanking circuit, said anode being at a certain potential in the absence of applied input signal and applied blanking pulses, and an un-bypassed unidirectional conducting device that in direct-current connected between said anode and a point of substantially the same potential as said certain potential, said device having an anode that is connected to the anode of said amplifier tube to permit current flow from said anode to said point.

Abstract translation: 1.组合放大器，用于放大施加的信号，其包括具有阳极，阴极和至少一个控制栅格的放大器管，通过其施加工作电压到所述阳极的阳极电阻器，用于偏置所述管，使得 它具有良好的跨导，由此在不存在施加的信号的情况下存在亚实质的阳极电流，所述管具有输入电路，通过该输入电路可以向所述管施加信号，其极性沿着增加所述管中的阳极电流的方向 所述管具有消隐电路，通过该消隐电路可以施加消隐脉冲以将所述管驱动到阳极电流截止，用于将所述消隐脉冲施加到消隐电路的装置，所述阳极在不存在施加输入的情况下处于一定电位 信号和施加的消隐脉冲，以及未旁路的单向导通装置，其在所述阳极和基本上相同的电位之间的直流电中连接 所述器件具有连接到所述放大器管的阳极的阳极，以允许电流从所述阳极流到所述点。