摘要
移动无线信道传输特性的仿真对移动通信的研究具有重要意义,其中小尺度衰落仿真又是其中的重点和难点。针对多普勒频移和无线信道的随机性,讨论了基于Rayleigh衰落的无线信道的小尺度模型,并运用数字信号处理方法,在频域给出了多普勒滤波仿真小尺度信道衰落的方法、频率选择性信道的仿真模型和仿真曲线。该方法较好地模拟了信号载波频率和通信终端移动速度的影响。
It is essential to study small-scale channels and their simulation implementation for the design and performance analysis of wirless communication system.As a classical fading model,Rayleigh fading channels are the foundation of many other channel models.In this paper,we discuss small-scale channel＇s properties and give its model based on Rayleigh fading.Then ,using digital signal process theory ,we also investigate its implementation method and provide the simulation results.
出处
《科技信息》
2008年第35期58-59,共2页
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