《通信信号处理》课程的大作业相应的代码我要分享

中文说明：

本代码是《通信信号处理》课程的大作业相应的代码。主要是通信信号发射端的仿真，具体功能是：

1.产生任意长度的伪随机序列，将序列映射为I,Q两路的信号。

2.均方根升余弦滤波器成型。 3.经过通带衰减为3dB的倾斜滤波器（模拟信道衰落效果）。

4.插零，半带滤波器升抽样。

5.NCO处理单元调制。

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English Description：

This code is communication signal processing courses corresponding to the large code. Mainly is the simulation of the communication signal transmitter, the specific functions are:
1. Produce arbitrary length of the pseudo-random sequence, the sequence mapping for the I, Q two-way signal
2. Raise the root-mean-square filter forming
3. After passband attenuation 3dB tilt filter (analog channel fading effect)
4. Insert zero, half-band filter l sampling.
5. NCO processing unit modulation