有关MPSK调制，传输模型。成型脉冲分为矩形，升余弦脉冲，平方根升余弦脉冲。M的值为2，4和8.所加噪声是高斯白噪声。-Of the MPSK modulation, transmission model. Pulse shape is divided into rectangular, raised cosine pulse, the square root raised cosine pulse. The value of M fo