关键词: 数据链, 跳频通信, 数字扩频, 随机过程, Link-16, Link-22

Abstract: The construction of a complex electromagnetic environment is a necessary condition for modern military training,and the simulation of foreign typical signals is a key aspect.According to surveying the time-domain and spectrum characteristics,and modulation methods of Link-16 and Link-22 data link signals,we propose a data link signal generation method that base on Frequency Hopping(FH) communication,stochastic sequence spread spectrum,8PSK,64QAM,and 16QAM modulation techniques.Compared to real data link signals,the data link signal generated by this method has high similarity in time-domain and frequency-domain characteristics,and has advantages such as low hardware cost,simple structure,and easy implement.And the generated data link signals were tested,and the results showed that the time-domain and spectrum characteristics of the signals were consistent with theoretical expectations,providing a new approach for data link signals generation.

Key words: Data link, Frequency Hopping(FH) communication, Digital spread spectrum, Random processes, Link-16, Link-22