任意波形发生器设计.doc

学号： 14122502243 毕业设计 题 目： 任意波形发生器设计 作 者 刘 慧 届 别 2016 院 部 物理与电子学院 专 业 电子科学与技术 指导老师 易立华 职 称 副教授 完成时间 2016.05 PAGE PAGE 2 毕业设计 = 1 \* ROMAN I = 1 \* ROMAN I 摘 要 任意波形发生器(Arbitrary Waveform Generator,AWG)作为一种多波型的信号发生器，它不仅可以产生锯齿波、正弦波等常规波形，而且还能表现出载波调制的多样化特点，使波形发生调幅、调相、调频和脉冲调制等。甚至能利用计算机软件实现波形的编辑，生成用户所需要的任意波形。任意波形发生器广泛应用于自动控制、电子电路和科学试验领域，是一款给电子测量工作提供符合技术要求的电信号设备。因此在各个领域都得到迅猛的发展。本论文设计一款任意波形发生器，该系统由输入模块、FPGA模块、DAC数模转换模块、显示模块4个部分组成。该设计将虚拟化的仪器技术、串行总线接口技术和直接数字频率合成技术完美地结合在一起，以现场可编程门阵列（FPGA）作为硬件基础，然后再通过逻辑设计、系统软件设计和系统硬件电路设计，实现了一款基于直接数字频率合成技术的低成本、便携式、可扩展的可立即使用的任意波形发生器。 关键词：数字频率合成器；verilog；FPGA；仿真 = 2 \* ROMAN II = 2 \* ROMAN II Abstract Arbitrary waveform generator (Arbitrary Waveform Generator,AWG) is a multi wave signal generator. It can not only generates a sawtooth wave, sine wave and so on conventional waveform and the diversification of the modulated carrier, so that the waveform occurrence amplitude modulation, phase modulation, frequency modulation and pulse modulation. Can even use computer software to realize the waveform of the editor, the user needs to generate arbitrary waveform. Arbitrary waveform generator is widely used in the field of automatic control, electronic circuit and scientific experiment. It is an electrical signal equipment which meets the technical requirements for electronic measurement.This paper designs an arbitrary waveform generator, which is composed of 4 parts, input module, FPGA module, DAC module and display module. The design the virtual instrument technology, serial bus interface technology and direct digital frequency synthesis technology perfect combination together, convertible to field programmable gate array (FPGA) as the basis of hardware, and then through the logic design, system software design and the hardware circuit design, and the implementation of a arbitrary waveform generator based on direct digital frequency synthesis technology of low cost, portable, scalable and can b