基于FPGA的DDS多信号发生器的设计与实现  

Design and Implementation of Direct Digital Frequency Synthesis Multiple Signal Generator Based on FPGA

作　　者：杨大伟[1] 杨秀芳[1] 陈剑虹[1] 

机构地区：[1]西安理工大学机械与精密仪器工程学院,陕西西安710048

出　　处：《西安理工大学学报》2013年第4期439-443,共5页Journal of Xi'an University of Technology

基　　金：陕西省自然科学基础研究计划项目(2012JM8006)

摘　　要：在实际工业和科技等领域中经常需要高精度且频率方便可调的多信号源。研究设计了基于FPGA的直接数字频率合成(DDS)多信号发生器的基本组成和设计原理,给出了硬件描述语言VHDL编程实现方法,在Quartus II软件环境下对多信号发生器进行了仿真,用ALTERA公司的Cyclone IV硬件平台实现了程序的下载。实现了正弦波、锯齿波、方波、三角波等的频率可调、相位可调、幅值可调等功能,且准确度高,性价比良好。The convenient and adjustable muhi-single resources with high precision and frequency are oiten required in the practical industrial and sci-tech fields. The basic components and design principle of direct digital frequency synthesis （DDS） multi-single generator based on FPGA are studied and designed. Also, the software description language VHDL, and programming realization method are given. Linder Quartus [I software environ, the signal generator is simulated. ALTERA company cyclone IV hardware platform is used to achieve the program downloading. The experimental results indicate that this design has realized the frequency adjustability, phase adjustability, and amplitude adjustability of the sine wave, saw tooth wave, square wave and triangle wave with high accuracy, fast conversion of wave patterns, and fine quality of output wave patterns, and better performance to price ratio.

关 键 词：直接数字频率合成(DDS) 现场可编程门阵列(FPGA) 多信号发生器 VHDL 

分 类 号：TP346[自动化与计算机技术—计算机系统结构]