此函数用于IS-95前向链路系统的仿真，包括扩 频调制，匹配滤波，RAKE接收等相关通信模块。 仿真环境: 加性高斯白噪声信道. 数据速率 = 9600 KBps -This function is used to forward link IS-95 system simulation, including the spread spectrum modulation, matched filter, RAKE receiver, and other related co

对信号加入噪声，绘制频谱图，设计滤波器，对信号进行频谱分析，滤波-The noise signal is added, rendering the spectrum diagram, the design of filters for spectral analysis of the signal, filtering

线性调频信号的匹配滤波器系数的时域构建方法,和如何实现脉冲压缩.如何纠正匹配滤波造成的时间延迟.白噪声下匹配滤波的效果.-The matching filter coefficients of linear FM signal is constructed in the time domain, and how to realize pulse compression. How to correct the time delay caused by the matched filter.