形成一个余弦调制波形，用于调制波形，具有非常重要的意义-Form a cosine wave modulation for modulation waveform, has great significance

仿真Alamouti,多发送多接收空时编码性能，调制方式为QPSK-Simulation Alamouti, multi-multi-receiver transmission performance of space-time coding and modulation scheme is QPSK

实现FSK调制，非常简单易学，适合新手，欢迎下载-FSK modulation, very easy to learn, suitable for novice, welcome to download