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1. 发明授权

US5481270A Radar with adaptive range sidelobe suppression 失效
标题翻译：具有自适应范围旁瓣抑制的雷达
公开(公告)号：US5481270A
公开(公告)日：1996-01-02
申请号：US205471
申请日：1994-03-04
申请人： Harry Urkowitz , Nicholas J. Bucci , Jerome E. Freedman
发明人： Harry Urkowitz , Nicholas J. Bucci , Jerome E. Freedman
IPC分类号： G01S7/41 , G01S13/28 , G01S13/58 , G01S13/95
CPC分类号： G01S13/28 , G01S13/582 , G01S13/95 , G01S7/411 , G01S7/415 , Y10S367/905
摘要： A method and apparatus for identifying a remote target includes a transmitter for transmitting pulses of energy toward the target for generating echo signals, and a receiver for receiving the echo signals, and for generating received signals representing the target, noise and clutter. The received signals are applied through a plurality of cascaded channels, each including a Doppler filter cascaded with a multiplier, each also including range sidelobe suppression, for, in each of the cascaded channels, narrowband filtering the signals passing therethrough about a controllable center frequency, and for, if necessary, converting the signals passing therethrough to baseband, for thereby applying one of a plurality of Doppler filtered baseband signals to the input of each of the range sidelobe suppressors of each of the cascaded channels. The power of the Doppler filtered baseband signals in each range bin is evaluated for determining the frequency at which the spectral density is greatest. The center frequency of at least one of the cascaded Doppler channels is controlled such that one of the Doppler channels has its center frequency at the maximum-power frequency.
摘要翻译：用于识别远程目标的方法和装置包括用于向目标发射能量脉冲以产生回波信号的发射机，以及用于接收回波信号的接收机，以及用于产生表示目标，噪声和杂波的接收信号。所接收的信号通过多个级联信道施加，每个信道包括与乘法器级联的多普勒滤波器，每个滤波器还包括范围旁瓣抑制，用于在每个级联信道中，对通过其的可控中心频率的信号进行窄带滤波，并且如果需要，将通过其的信号转换为基带，从而将多个多普勒滤波后的基带信号中的一个施加到每个级联信道的每个范围旁瓣抑制器的输入端。评估每个范围仓中多普勒滤波基带信号的功率，以确定频谱密度最大的频率。控制级联多普勒频道中的至少一个的中心频率，使得多普勒频道中的一个中心频率处于最大功率频率。

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