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1. 发明授权

US5606324A Radar system 失效
标题翻译：雷达系统
公开(公告)号：US5606324A
公开(公告)日：1997-02-25
申请号：US569374
申请日：1995-12-07
申请人： Walter S. Justice , David A. Marquis , Ronald A. Wagner
发明人： Walter S. Justice , David A. Marquis , Ronald A. Wagner
IPC分类号： G01S13/02 , G01S7/288 , G01S13/18 , G01S13/24 , G01S13/26 , G01S13/44 , G01S13/53 , G01S13/64 , G01S13/66 , G01S13/70 , G01S13/72
CPC分类号： G01S13/53 , G01S13/24 , G01S13/66 , G01S13/18 , G01S13/449 , G01S13/64 , G01S13/70 , G01S13/726 , G01S2007/2883
摘要： A radar system having a transmitter for transmitting a series of radio frequency (RF) pulses with sequential, incrementally changing carrier frequencies. A receiver receives energy from multiple scattering points of an object reflecting such transmitted RF pulses. The received energy from each one of such scattering points includes a series of radio frequency (RF) pulses corresponding to the transmitted pulses delayed in time, .tau., from the transmitted pulses an amount proportional to the range to such scattering point and shifted in frequency from the carrier frequency an amount proportional to the velocity of such scattering point. The receiver includes a heterodyning section, responsive to a range tracking error signal, .epsilon..sub.R, and a velocity tracking error signal, .DELTA..sub.VEL, for producing a series of pulsed signals for each one of the scattering points. Each one of the pulsed signals for any given scatterer sequentially changes in phase, .phi., at a rate, .DELTA..phi./.DELTA.T, related to the range to the scattering point producing such one of the pulsed signal series. A processor, responsive to each of the series of pulsed signals produced by the heterodyning section, unambiguously determines from the frequency spectrum thereof the range tracking error signal, .epsilon..sub.R, and velocity tracking error signal, .DELTA..sub.VEL, for each of the scattering points as well as the range centroid.
摘要翻译：一种具有发射机的雷达系统，用于发射具有顺序的递增变化的载波频率的一系列射频（RF）脉冲。接收器从反射这种发送的RF脉冲的物体的多个散射点接收能量。从这些散射点的每一个接收的能量包括一系列射频（RF）脉冲，对应于从时间上延迟的发射脉冲，τ，从发射脉冲开始，与这样的散射点的范围成比例并且频率偏移载波频率与这种散射点的速度成比例的量。接收机包括响应于范围跟踪误差信号εR和速度跟踪误差信号DELTA VEL的外差部分，用于为每个散射点产生一系列脉冲信号。对于任何给定的散射体的每个脉冲信号以与产生这样的脉冲信号序列的散射点的范围有关的速率DELTA phi / DELTA T的相位顺序地改变。响应于由外差部分产生的一系列脉冲信号中的每一个的处理器从其频谱中明确地确定每个散射点的范围跟踪误差信号，εR和速度跟踪误差信号DELTA VEL，如以及范围重心。

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