MFSK最佳接收系统BER分析与仿真
焦方源
【期刊名称】《计算机仿真》 【年(卷),期】2009(026)010
【摘要】多进制频率调制(MFSK)是通信技术中常用的主要调制方式,要求具有良好的通信性能.然而,信道中的各种随机噪声和干扰,特别是快衰落和多径传播对MFSK信号起着极其重要的影响作用.针对多径传播可能引起通信系统严重误码的技术问题,首先运用数学方法深入分析了MFSK信号最佳接收过程及其误码原理与特性,得到了相关理论描述与结论,然后用SystemView构建最佳接收仿真系统并对其误码特性(BER)进行仿真和分析,从实践方面证实了关于MFSK最佳接收通信系统误码率的理论结论的正确性.%With its perfect communication performance , Multi -band frequency modulation (MFSK) is one of the main modulation methods commonly used in communications technology. However, all sorts of random noise and interference from channels, especially fast fading and the spread of multi - path have a vital impact on MFSK signal. In view of the problem that multi - path transmission may cause serious error of communication system, this paper deeply analysed the process, principle and error characteristics of MFSK signal optmum reception system by using mathematical methods at first, and received an important theoretical description and conclusion. Then the MFSK signal optmum reception simulation system was constructed with SystemView
MFSK最佳接收系统BER分析与仿真
