瑞利衰弱仿真器几种实现方法的仿真

小尺度衰落信道的建模和仿真是信道建模的重点和难点所在.本文在阐述了对小尺度衰弱信道的建模思想以后,说明了瑞利衰弱仿真器的实现是衰弱信道仿真的关键.然后文章从目前比较流行的三种实现瑞利衰弱仿真器的方法入手,依次讨论了这三种方法的原理、实现手段以及各自的优劣性.然后对每一种方法利用数学工具Matlab做出了仿真.根据仿真结果分析了每一种瑞利衰弱仿真器的特点及需要改进之处.

The Simulation and Discussion of Several Methods to Implement Rayleigh Fading Simulator

One main difficulty encountered in modeling the fading channel is how to simulate the small - scale fading. In this paper, after stating the way to model the small - scale fading channel, a proposal that the most important part in simulating the fading channel is the implementation of rayleigh fading simulator was made. After that, we discussed three different methods to implement the rayleigh fading simulator. Their theories, implementation, merits as well as defects have been analyzed thoroughly. Each of these ways was implemented on the mathematic tool Matlah. The results are discussed to indicate different features of different methods.