基于Simulink的模块化物理层通信链路波形仿真

针对通信系统的物理层传输链路仿真实现难度大、可复用性差等问题,研究基于Simulink的模块化物理层链路波形仿真技术。分析Simulink平台用于物理层链路仿真所具有的内在特性,比如模块化设计及数据流动态仿真等。建立Simulink所含模块与实际物理层传输链路各部分功能之间的对应关系,以基础模块组合实现物理层传输链路的复杂技术功能。以QPSK传输波形为例,验证所采用仿真技术的有效性,表明基于Simulink的模块化物理层链路波形仿真技术具有易实现、直观性强及可复用等特点。

Modularization Simulation Based on Simulink for Physical Layer Transmission Link Waveform in Communication System

Aiming at the problems of great difficulty and weak reuseability of simulating the physical layer transmission link in communication system,the modularization simulation technology based on Simulink for physical layer transmission link waveform is proposed in this paper.Firstly,the inherent properties of Simulink in physical layer transmission link simulation are analyzed,such as modular design and data flow simulation.Furthermore,the relation between Simulink module and function of every part in physical layer transmission link is studied and set up,and the basic modules are combined with each other to achieve great power.Finally,the QPSK waveform is taken as an example to verify the validity of this simulation technology,and the results show that the modularization simulation technology based on Simulink for physical layer link waveform is simply achieved,more intuitive and reused.