Application of DRFM in high frequency ground wave radar

Compared with the traditional analog delay, to conveniently control the time delay of responder of high frequency ground wave radar and obtain duplicate signal with better coherence, the digital radio frequency memory (DRFM) which consists of FIFO is designed to sample the received signal of radar at high speed continuously and simulate the target at any distance. This design is proved to meet the demand of responder of radar well