论文部分内容阅读
本发明的背景本发明一般适合于脉冲多卜勒雷达接收机,尤其适合于打算采用快速富氏变换(FFT)处理机的接收机,毋需任何自动增益控制。在技术上如众所周知的,普通的脉冲多卜勒雷达接收机、特别是打算用于导弹搜索器中的雷达接收机,一般采用自动增益控制(AGC)回路控制其增益,以适应由电子干扰(ECM)、杂波以及多目标环境所形成的输入信号的大动态范围,在这种接收机里,输入信号须依次通过一排粗选滤波器(以目标的多卜勒频率定中心)、一组有快速
Background of the Invention The present invention is generally applicable to pulsed Doppler radar receivers and is particularly suited to receivers intended for use with Fast Fourier Transform (FFT) processors without requiring any automatic gain control. As is well known in the art, conventional pulsed Doppler radar receivers, and in particular radar receivers intended for use in missile finders, generally employ an automatic gain control (AGC) loop to control their gain to accommodate interference caused by electronic interference ECM), clutter, and multi-target environments. In this receiver, the input signal passes through a bank of coarse filters (centered at the target Doppler frequency), one Group has fast