[1]胡仁杰.高分辨率任意波形发生器的实现[J].东南大学学报(自然科学版),2002,32(4):576-580.[doi:10.3969/j.issn.1001-0505.2002.04.008]
 Hu Renjie.Implementation of arbitrary waveform generator with high resolving power[J].Journal of Southeast University (Natural Science Edition),2002,32(4):576-580.[doi:10.3969/j.issn.1001-0505.2002.04.008]
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高分辨率任意波形发生器的实现()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
32
期数:
2002年第4期
页码:
576-580
栏目:
电子科学与工程
出版日期:
2002-07-20

文章信息/Info

Title:
Implementation of arbitrary waveform generator with high resolving power
作者:
胡仁杰
东南大学电气工程系,南京 210096
Author(s):
Hu Renjie
Department of Electrical Engineering, Southeast University, Nanjing 210096, China
关键词:
直接数字频率合成 任意波形发生器 D/A转换器
Keywords:
direct digital synthesizer arbitrary waveform generator D/A converter
分类号:
TN74
DOI:
10.3969/j.issn.1001-0505.2002.04.008
摘要:
分析了传统AWG的不足,研究了D/A转换器字宽和数据输出速率对信号失真度的影响,介绍了直接数字频率合成(DDS)的基本原理.运用DDS技术构成了高分辨率的AWG,并详细论述了AWG各组成电路的设计方法.此任意波形发生器(AWG)可以产生任意波形的周期性信号,能灵活控制信号的频率、幅值和相位,并且在很宽的频率范围内快速切换频率.本文采用两级串联的D/A转换器以获得全量程范围内信号具有高分辨率输出; 运用DDS技术构建频率信号源,以获得可以连续精确调整的信号频率.
Abstract:
The weaknesses of traditional arbitrary waveform generator(AWG)were analyzed and the effect of D/A converter’s bit width and output rate on signal distortion was studied. Based on introducing the DDS principles, the DDS technology is adopted to design the AWG of high resolving power. The paper also highlights the design methods of each circuit in the AWG. The AWG can generate cycle signal with arbitrary waveform. It can also easily control frequency, phase and amplitude, and can switch frequency rapidly in wide frequency area. The output of AWG with high resolving power is developed and designed by adopting two D/A converters in series in full amplitude range.

参考文献/References:

[1] 戴柠,陈一尧.DDS信号源的研制[J].仪器仪表学报,1996,17(1):24-27.
  Dai Ning,Chen Yiyao.Direct Digital High-frequency Synthesis[J].Chinese Journal of Scientific instrument,1996,17(1):24-27.(in Chinese)
[2] Martin R.Differences between traditional and DDS-based AWGs[J].Test & Measurement World,1999(5):43-46.
[3] 胡仁杰.应用Labview分析D/A转换器字宽与转换速率对信号波形失真度的影响[J].工业控制计算机,2002,15(4):8-9.
  Hu Renjie.Analysizing the influence of the DA converter’s bit width and converting speed on distortion of signal by means of Labview[J].Industrial Control Computer,2002,15(4):8-9.(in Chinese)
[4] Paul O L,Franco M.A direct-digital synthesizer with improved spectral performance[J]. IEEE Transactions on Communications,1991,39(7):1046-1048.
[5] 左磊,连小珉.双RAM直接数字合成任意波形发生器微机插卡研制[J].清华大学学报,1999,39(2):90-93.
  Zhuo Lei,Lian Xiaomian.Dual RAM arbitrary waveform generator card using direct digital synthesizer technology[J].Journal of Tsinghua University,1999,39(2):90-93.(in Chinese)

备注/Memo

备注/Memo:
基金项目: 国家电力公司立项资助项目(6716001001).
作者简介: 胡仁杰(1962—),男,博士,副教授,hurenjie@seu.edu.cn.
更新日期/Last Update: 2002-07-20