伪随机m序列自相关函数的Simulink仿真设计与实现

Pseudo-random m sequence autocorrelation function Simulink simulation designs and realizes

伪随机码具有良好的随机特性,它的自相关函数跟白噪声的自相关函数相类似,具有较窄的相关峰和较宽的功率谱密度,使它易于从其它信号或干扰中分离出来。文中介绍了伪随机码自相关函数的两种实现方案,第一种是简单建模和编程的方式相关处理;第二种是完全靠模块化的Simulink仿真模型相关处理。这是目前比较广泛使用的处理方式。信号处理过程中自相关函数是极其重要的内容,建立伪随机序列的相关处理模型具有较高的应用价值和深刻的研究意义[1]。

The pseudo--random code has the good stochastic characteristic, its autocorrelation function is similar with the white noise autocorrelation function, has the narrow correlation peak and the wide power spectral density, causes it easy separates from other signals or the disturbance. In the article introduced the pseudo--random code autocorrelation function two kind of realization plan, the first kind is the simple modelling and programming way correlation processing; The second kind is depends on modular completely Simulink simulation model correlation processing. This is the present quite widespread use processing mode. In the signal processing process the autocorrelation function is the extremely important content, es- tablishes the pseudo--random sequence the correlation processing model to have the high application value and the profound research significance.