非线性盲信号均衡技术在海上通信系统中的应用及Sinmulink仿真

摘要

Multipath channel interference and communication signal interference caused by changeable weather on sea affect the performance of maritime communication system. This paper studies the blind equalization technology, and a improved algorithm is also proposed and researched in this paper. At last, a maritime communication system model was used in Simulink condition, and the whole simulation model was set up. The simulation results show that the improved algorithm can well test out all kinds of MPSK signals, and have strong adaptability in MPSK signals.%针对现代海上通信系统中多径信道以及海面多变天气引起通信信号干扰问题，研究了当前处理多径干扰的盲信号均衡技术，针对 MPSK调制信号，改进了盲检测信号的权阵函数算法，并利用 Matlab的针对通信系统专用仿真工具Simulink搭建了仿真平台。本文最后给出了不同信噪比条件下，该改进算法仿真得到的误码率曲线图。实验表明，该改进权阵函数算法能有效降低海上通信多径干扰以及海面噪声干扰，提高海面通信系统精度性。