中文说明：
本程序用于完成BPSK、QPSK、pi/4QPSK、OQPSK、8PSK、16QAM、32QAM、64QAM和128QAM的调制仿真。并可任意扩展到MPSK和MQAM。程序分成四个部分，fir.m对基带码元序列进行脉冲成型，可选矩形脉冲，升余弦脉冲和平方根升余弦脉冲； modal.m 为主程序，完成岁各种信号的基带星座图映射、脉冲成型和调制；pi4QPSK.m 为pi/4QPSK信号的星座图映射程序；test1.m给出一个简单的频谱显示测试。
English Description：
This program is used to complete BPSK, QPSK, PI / 4qpsk, OQPSK, 8PSK, 16QAM, 32qam, 64QAM and 128QAM modulation simulation. It can be extended to MPSK and MQAM. The program is divided into four parts, fir. M pulse shaping for baseband symbol sequence, including rectangular pulse, ascending cosine pulse and square root ascending cosine pulse; modal. M is the main program to complete baseband constellation mapping, pulse shaping and modulation of various signals; pi4qpsk. M is the constellation mapping program for pi / 4qpsk signals; test1. M gives a simple spectrum display test.