The system uses the emitter to send ultrahighfrequency signals after coding with signal coder and the secondary superheterodyne mixing receiver to accept the moving target signals.
系统中发射器采用编码器编码后发送超高频信号，接收器采用二次混频型超外差式接收移动目标信号。
2
The experimental results show that the receiver has characteristics of ultra-low noise, high gain and good frequency response, which satisfies the requirements of the 3mmW LFMCW radar system.