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

1+sign(cos(t)),3+sin(t),randn随机信号，三种独立成分的分离，包含程序子图。-1+ sign (cos (t)), 3+ sin (t), randn random signal, the separation of the three separate components, including the program subgraph.