实现完整的4CPM(h=1/2)调制解调程序，包括消息序列生成，串并转换，升抽样成形滤波，数字上变频，多项式非线性效应，AWGN信道，到接收端数字下变频，降采样，匹配滤波，接收端基带信号星座图。-Message sequence generation, serial-parallel conversion, up sampling shaping filter, digital upconversion, polynomial nonlinear effects, AWGN channel, t

实现16QAM完整的调制解调系统，包括基带信号串并转换，星座图映射，升抽样成形滤波，升采样半带滤波，数字上变频，功放的多项式非线性效应，加性高斯白噪声信道，接收端下变频，降采样，匹配滤波，绘制接收端星座图。-16QAM modulation and demodulation realize the complete system, including the baseband signal string and conversion, constellation mapping, samplin

该源码可实现16QAM的调制解调功能，包括串并转换、二/四进制变换，并完成相干解调。给出信噪比与误码率关系仿真结果。通过输出星座图的形式直观的观察调制解调性能-The source can be realized 16QAM modulation and demodulation, including string and conversion, two/quaternary conversion and complete coherent demodulation. Given the rel