基于FPGA的DDS-AM调幅波产生方法研究及实现

Study on Generation and Realization of DDS-AM Wave Based on FPGA

为实现基于FPGA的DDS数字调幅波,提出以调整调制指数控制字与频率控制字,通过查表得到所需数字序列的思想与方法,MATLAB6.5仿真与样机实验表明该方法是行之有效的。

To generate digital DDS AM by FPGA, the idea and method to achieve digit sequence were presented by looking up the table with the help of adjusting index modulation control word. MATLAB6.5 simulation and sample machine experiment showed this method was effective.