drf

DRFM has developed an essential part of the electronic countermeasure ( ECM ) systems.

DRFM现今已成为 电子对抗 系统中的关键组成部分.

Based on the discussion on LFM signal, this paper studies several jamming methods and presents the simulation experiments, including: directed noise amplify jamming, phase modulation jamming, time-delayed jamming, frequency-shift jamming, etc.

在分析线性调频（LFM）信号的基础上，研究了多种基于DRFM的雷达干扰技术，仿真验证了干扰效果，包括：射频噪声干扰、噪声调相干扰、延时干扰和移频干扰等。

A new digital radio frequency memory ( DRFM ) system architecture based on digital channelized receiver is introduced.

提出一种基于数字信道化接收的数字射频存储 ( DRFM ) 系统设计方法.

Conclusion: RF system and DRFS were superior to Dick and Harrington in effect on reductive fixation.

结论: RF和DRFS复位固定效果上优于Dick、Harrington,在临床应用上应根据病人的具体情况而定.