矩形脉冲信号的Mobius变换在数字通信中的应用  

Application of Mobius Transformation of Rectangular-pulse Signal in Digital Communication System

作　　者：郭捷敏[1] 王建成[1] 苏武浔[1] 

机构地区：[1]华侨大学信息科学与工程学院,福建泉州362021

出　　处：《计算机仿真》2006年第5期303-305,共3页Computer Simulation

摘　　要：该文通过对周期矩形脉冲波进行Mob ius变换的逆变换,并把变换出来的结果及矩形脉冲波本身应用到通信系统的设计上,对输入的二进制数字信号进行调制与解调(这是两个不同的函数族,它们是相互正交的而各自本身却是非正交的),给出了其在数字信号基带通信系统的应用,并用Matlab对其进行仿真,仿真结果显示,在信噪比很低的情况下(比如1:37.4980)其结果都能很好地还原出原数字信号,得到高保真与强对抗性能,并对滤波出来的结果进行误码分析。This study applies the mobius transformation of rectangular - pulse signal into the communication system, the result and the rectangular - pulse signal can modulate and demodulate the binary normal signal （ there are two different family of functions, and they are reciprocal orthogonal）. Its application to the digital base band communication system was given. At the same time, this study employs Matlab to simulate it. The results show that in the very low signal -to -noise ratio （for example 1：37. 4980）, the system can restore the original digital signal and the error rate is zero.

关 键 词：逆变换 矩形脉冲 基带传输系统 仿真分析 

分 类 号：TN914[电子电信—通信与信息系统]