基于FPGA的任意波形发生器的设计与实现

Design and implementation of arbitrary waveform generator based on FPGA

介绍了基于直接数字频率合成技术技术,采用MATLAB的图形用户界面语言来编写上位机程序,实现任意波形订制,利用PC下位机与上位机系统设计和FPGA技术实现硬件电路的软件化设计,研制一种信号产生灵活、信号参数可调且具有电路结构简单、实用性强、成本低廉等优点新型任意波形发生器,并提供友好的人机界面和任意波形定制方法;在实验室通过系统配置串口参数进行系统级联调试,并分析所采集的实验数据,总体波形较好,频率实现的误差较小,达到预期设计目标。

Based on direct digital frequency synthesis technology are introduced in this paper,using MATLAB graphical user interface language to write the PC program, the realization of arbitrary waveform, custom-made using PC lower place machine and super ordination machine system design and FPGA realization of hardware circuit, software design technology,developing a flexible signal,signal with adjustable parameters and the circuit structure is simple, practical, low-cost advantages of new types of arbitrary waveform generator,and provides friendly man-machine interface and the arbitrary waveform custom methods. In the laboratory through the system configuration cascade debug serial port parameters system, and analysis of experimental data collected, the overall waveform, frequency error is small, the desired design goal.