数据链信号生成方法研究

Research on Data Link Signals Generation Method

复杂电磁环境构建是现代军事训练的必备条件,对外军典型信号的模拟则是重要内容。通过研究Link-16和Link-22数据链信号的时域特征、频域特征和调制方式,提出了一种基于跳频通信、随机序列软扩频、8PSK、64QAM和16QAM调制等技术的数据链信号生成方法。本方法产生的数据链信号与真实的数据链信号相比,时域和频域特征具有很高的相似度,同时具有硬件成本低、结构简单和易于实现等优点。测试了生成的数据链信号,结果表明,信号特征与理论预期一致,为数据链信号生成提供了新的思路。

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.