基于DDS技术的函数波形发生器

A Functional Waveform Generator Based on DDS

给出一种基于DDS技术的函数波形发生器设计方法.介绍了DDS技术在波形产生功能电路中的应用,并对FPGA实现DDS功能做了具体的说明.给出用单片机、FPGA、信号处理电路组成整个发生器的硬件结构和输出信号的波形.结果表明,该函数波形发生器具有输出频率稳定、准确,波形质量好和输出频率范围宽等优点.

To present a design method of function waveform generator＇s function circuit which is based on the DDS theory, It mainly introduces the application of DDS technology in the function wave generator＇ s circuit and shows the principle of designing a DDS chip with FPGA. IT and describes the method using MCU, FPGA together with signal proceesing circuits to constitute the function waveform generator as well as the waveform output of generator.