digital frequency counter的意思|示意

Digital Radio Frequency Memory (DRFM) can store radar signal coherently for a long time, it provides powerful means to counter new radar systems.

数字射频存储器(DRFM)可以对雷达信号进行长时间的相干存储，为干扰现代相干体制雷达提供了有力的技术手段。

The output of the FPGA is typically a waveform with a fixed-frequency, variable-duty cycle, which a counter and a digital comparator generate (Listing 1).

FPGA的输出是固定频率、计数器和数字比较器使占空比可变的典型波形(表1)。

The advantage and importance of digital radio frequency memory (DRFM) technique in radar counter measures (RCM) are discussed. The principle of DRFM is introduced.

论述了数字射频存储器(DRFM)技术在雷达对抗中的作用和重要性，介绍了DRFM的原理。