The noise jammer using digital radio frequency memory(DRFM)technology,has the features of high frequency spot accuracy,narrow noise bandwidth and high jamming power efficiency,is effective in jamming against pulse Doppler(PD) radar.

The digital radio frequency memory(DRFM) is the core of the electronic countermeasure (ECM),it samples and saves the signal which is from down frequency conversion of radar signal,then postpones and sends it out, thus the deception and interference in distance are realized.

Research of GPS Receiver in High Spinning Environment based on DRFM;

Design of DRFM based on FPGA;

Design and Implementation of a High-Speed 3bit GaAs Phase ADC for DRFM;

In the paper,digital radio frequency memory(DRFM) is applied to airborne radio fuze jammer to jam pulse distance-detecting fuze and pulse Doppler fuze.

In this paper we introduce the typical digital radio frequency memory(DRFM),including the basic operation principle,the area of application and specification et al.

A design of high resolution radar echo simulatosrs based on the digital RF memory and digital image synthesizer is presented.

Basic principle and characteristic of digital RF memory(DRFM) is analyzed,detailed composition and configuration are provided;and application advantages of DRFM in digital sampling and memory are summarized.

This paper introduces the applications of digital RF memory(DRFM) technology to the radar countermeasures,describes the structure and operational principle of DRFM.