跳频通信系统设计与仿真实现

Design and Simulation of FH Communication System

介绍了跳频通信系统的工作原理,着重研究、设计了跳频序列发生器、频率合成器和跳频同步器等跳频通信系统核心组成部分。基于Matlab/Simulink仿真环境,使用反馈移位寄存器实现了跳频m序列发生器,采用直接数字合成法实现了频率合成器、基于等待式自同步法实现了跳频同步器。此外,在高斯白噪声和单音窄带干扰下,对所设计的跳频通信系统性能进行了仿真研究。仿真结果表明,该跳频通信系统工作正常,达到了预期效果,为跳频通信应用提供了一种解决思路和研究方法。

With the presentation of working principle of FH （frequency-hopping） communication system, three key parts including FH sequence generator, frequency synthesizer and FH synchronizer are discussed and designed. Under the MATLAB/Simulink simulation environment, the feedback shift register is used to implement the M-sequence generator, and the direct digital synthesis to realize the frequency synthesizer, and based on waiting-type auto-synchronization algorithm, the frequency-hopping synchronizer is de- signed. In addition, simulation on the designed scheme under the Gauss White Noise and Narrowband in- terfere indicates that the whole frequency-hopping communication, system could normally work and a- chieve the expected effect, thus providing certain resolving idea and researching method for the frequency- hopping communication application.