基于FPGA和Matlab任意波形发生器的实现  

The Implementation of Arbitrary Waveform Generator Based on FPGA and Matlab

作　　者：王立娜[1] 裴彦军[1] 宋春丽[1] 

机构地区：[1]中国船舶重工集团公司第七一八研究所,河北邯郸056027

出　　处：《舰船防化》2016年第3期63-68,共6页

摘　　要：任意波形发生器作为数字化信号源，具有高精度、高稳定性等优点，应用广泛。本文在波形发生器的设计实现上采用直接数字合成器（DDS）技术原理，在FPGA内部以模块化方式完成DDS结构的设计，并给出了Matlab下生成ROM查找表所需coe文件的程序说明，通过更改eoe文件中的波形数据即可得到不同的模拟波形输出。在自行设计的FPGA电路板上进行系统测试，结果表明：该波形发生器采用数字化的波形发生方式，可靠性高，稳定性好，幅度频率调节灵活，可产生任意波形，适合应用于多领域的产品研制和系统综合测试。As a digital signal source, arbitrary waveform generator has the advantages of high precision, high stability, and widely usage. This paper adopts the principle of Direct Digital Synthesizer （DDS） technology on the design and implementation of waveform generator, completes the design of DDS structure in modular way within the FPGA and gives the program description in Matlab about generating coe file used by ROM look-up table, by changing the waveform data in the coe file to output different analog waveforms. With self-designed FPGA circuit board for system testing, resultS show that the waveform generator using digital mode has high reliability, good stability, flexible adjustment of amplitude and frequency, and can generate arbitrary waveforms. The implementation can be applyed in the fields of product development and system comprehensive testing.

关 键 词：任意波形发生器 直接数字合成器 FPGA MATLAB ROM查找表 

分 类 号：TN741[电子电信—电路与系统]