In modern shortwave communication, the length of signal existence time in single channel is very short for reducing the probability of being intercepted, thus the difficulty of signal detection and extraction increased.
英
美
- 摘要在现代短波通信中,作为低截获率通信手段之一,单个信道内信号持续时间大大缩短,从而增加了信号检测与提取的难度。