用于的dsp builder的matlab实现算法，产生可编程的sin或cos波形，可以通过它作为ddc的dds

The basic parts of the BFSK transmitter are the preamble and the data input circuit. The preamble sequence is positioned in front of each packet of 122 bits for a total of 128 bits packet. The main purpose of the preamble is to facilitate the recepti

使用MATLAB 实现得仅有一半存储量的DDS。-MATLAB to achieve half of the storage capacity of DDS