这个是在quartusii和matlab simulink下搭的dds的模型，已经经过仿真是可以的。并且已经转为vhdl代码。-This is quartusii and matlab simulink model to catch the dds, has been the simulation is possible. And has to vhdl code.

DDS(快速正交调制）生成正弦波形，利用相位累加字进行累加，查找查找表内容输出正弦数据，在通信领域应用很多，我采用的是matlab的simulink进行前期仿真-DDS (fast quadrature modulation) to generate sine wave, the use of the word to accumulate phase accumulation, content output sine lookup table lookup data in many applic