基于FPGA和虚拟仪器的DDS信号发生器设计

摘要

A method to develop a DDS signal source with frequency controlled based on LabVIEW and FPGA is introduced.With the DDS,the function and structure of LabVIEW control panel and FPGA device are introduced.The output wave by test achieves the required aims and ensures the reliable and stabilization.%将虚拟仪器技术同FPGA技术结合,设计了一个频率可控的DDS任意波形信号发生器。在阐述直接数字频率合成技术的工作原理、电路构成的基础上,分别介绍了上位机虚拟仪器监控面板的功能和结构,以及实现DDS功能的下位机FPGA器件各模块化电路的作用。经过设计和电路测试,输出波形达到了技术要求,工作稳定可靠。