摘 要:针对扩频通信的复杂技术较难模拟的特点,本论文提出基于MATLAB的扩频通信系统的实现方法。在了解扩频通信理论基础上,利用MATLAB提供的具有强大功能的工具包,建立扩频通信系统的仿真模型,在采用扩频码的条件下,运行系统仿真程序,得出仿真结果。同时以系统误码率不变为前提,研究系统的扩频增益与输出信噪比之间的关系,仿真结果表明系统的输出信噪比明显改善。基于MATLAB的仿真结果表明,扩频通信系统具有较强抗干扰能力,为扩频通信为基础的现代通信奠定坚实基础。10631
关键词:扩频通信;MATLAB;扩频增益;输出信噪比;抗干扰能力
Simulation of the Spread Spectrum Communication System
Based on MATLAB
Abstract:For the complex technology of the characteristics of spread spectrum communication is difficult to simulate, so this article put forward the way based on MATLAB to emerge a spread spectrum communication system. When understanding the theory of spread spectrum communication, basing on the powerful tools provided by MATLAB package, setting up spread spectrum communication system simulation model, under the conditions of using the spreading code, running the system simulation program, we can get the simulation result. BER unchanged to be the premise, surveying the relationship between the spreading gain and output SNR of system, simulation results show significant improvements in output SNR systems. Spread spectrum communication system based on MATLAB simulation has demonstrated spread spectrum communication has strong anti-interference ability which forms a solid foundation for modern communication.
Key Words:Spread spectrum communication ; MATLAB; Spread spectrum gain; Output signal-to-noise; Anti-interference ability
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