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在各种混沌通信方案中,差分混沌键控混沌采用了易于实现的非相干解调,因而成为了混沌超宽带通信研究的热点。文章基于传统差分混沌键控通信提出一种通用差分混沌键控通信系统,该系统包含了多种差分混沌键控通信系统。文中理论分析了该系统中每比特采样点数、每符号比特数和信号占空比三个参数对于系统性能的影响,通过仿真证明了理论分析的正确性,最后分析了仿真和理论分析差异产生的原因。
In a variety of chaotic communication schemes, differential chaos keying chaos using non-coherent demodulation easy to achieve, and thus become a chaotic UWB hotspot. Based on the traditional differential chaotic keying communication, this paper presents a generalized differential chaotic keying communication system, which contains many kinds of differential chaotic keying communication systems. In this paper, the influence of three parameters per bit per symbol, number of bits per symbol and signal duty cycle on the system performance is analyzed theoretically. The correctness of theoretical analysis is proved by simulation. Finally, the differences between simulation and theoretical analysis are analyzed the reason.