Secondary frequency mixing的意思|示意

A combination method based on secondary mixing and MTD (Moving target detection) processing is proposed for high-speed targets detection in linear frequency-modulated continuous wave (LFMCW) radar.

针对LFMCW雷达高速运动目标的检测问题，本文提出了一种二次混频与MTD处理相结合的方法。

The system uses the emitter to send ultra high frequency 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。