基于SystemView的单边带调制与解调的仿真研究

文章基于SystemView系统仿真平台，通过对单边带调制解调系统基本原理的分析，采用相移法实现下边带调制，并对已调信号运用相干法实现解调。研究了基于SystemView软件环境下的单边带调制解调系统的仿真实现问题，设计了相应的系统仿真模型，对参数进行设定，在模块中加入噪声源，模拟实际信道中的噪声。并对仿真结果进行了分析，利用分析窗口对解调信号进行谱分析，证实了单边带通信占用的频带宽度较窄的特点。体现了SystemView进行系统仿真的可行性与实用性。

Simulation Research of SSB Modulation and Demodulation Based on SystemView

Based on the SystemView simulation platform, with the analysis of the basic principle of single sideband modulation and demodulation, this paper uses phase shift method to realize lower side band modulation, and uses coherent method to implement the demodulation. We study the single sideband system simulation realization based on SystemView software environment, design the corresponding system simulation model, set its parameters, add noise sources to the module to imitate noises in real channel. Finally, simulation results are analyzed. The characteristic of SSB communication that has narrow bandwidth occupied is demostrated by applying the analysis windows to the spectral analysis of the demodulated signal. Therefore, system simulation with SystemView is feasible and effective.