[1]赵正敏.相位截尾对DDS输出频谱影响的分析与计算[J].东南大学学报(自然科学版),2000,30(1):141-145.[doi:10.3969/j.issn.1001-0505.2000.01.028]
 Zhao Zhengmin.Analysis and Computation of Output Spectrum of DDS in Presence of Phase-Accumulator Truncation[J].Journal of Southeast University (Natural Science Edition),2000,30(1):141-145.[doi:10.3969/j.issn.1001-0505.2000.01.028]
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相位截尾对DDS输出频谱影响的分析与计算()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
30
期数:
2000年第1期
页码:
141-145
栏目:
电子科学与工程
出版日期:
2000-01-20

文章信息/Info

Title:
Analysis and Computation of Output Spectrum of DDS in Presence of Phase-Accumulator Truncation
作者:
赵正敏
淮阴工业专科学校电气工程系, 淮阴 223001
Author(s):
Zhao Zhengmin
Department of Electrical Engineering, Huaiyin Industrial College, Huaiyin 223001
关键词:
DDS 相位截尾 误差谱 快速算法
Keywords:
DDS phase-accumulator truncation error spectrum fast spectrum arithmetic
分类号:
TN74
DOI:
10.3969/j.issn.1001-0505.2000.01.028
摘要:
采用时域波形分解的方法,分析了相位截尾对DDS输出频谱的影响,给出了相位截尾误差频谱的分布规律,提出一组误差谱的高精度快速算法,并对其作了仿真,波形数据表地址字长较长时,可采用其中的近似算法,较短时则可采用精确算法.
Abstract:
The analysis of DDS output spectrum in presence of phase truncation is made with breaking its waveform in timedomain and a fast arithmetic is presented which makes it easy to compute the error spectrum caused by phase truncation, without approximating the phase truncation, the result is accurate for every kind of address width of LUT(Look-Up Table) while the approximate arithmetic is fit for the DDS with the wider address LUT. 

参考文献/References:

[1] Nicholas H T,Samueli H.An analysis of the output spectrum of direct digital frequency synthesizers in the presence of phase-accumulator truncation.In:41st Annual Frequency Control Symposium,1987.495~502
[2] Kroupa V F.Discrete spurious signals and background noise in direct digital frequency synthesizers.In:1993 IEEE International Frequency Control Symposium,1993.242~250
[3] Kroupa V F.Spectral properties of ddfs:computer simulations and experimental verifications.In:1994 IEEE International Frequency Control Symposium,1994.613~623
[4] Kroupa V F.Close to the carrier noise in DDS.In:1996 IEEE International Frequency Control Symposium,1996.934~941
[5] Mattison E M,Coyle L M.Phase noise in direct digital synthesizers.In:42nd Annual Frequency Control Symposium,1988.352~356
[6] 张玉兴,彭清泉.相位舍位对DDS谱分布的影响.电子科技大学学报,1997,28(4):137~142

备注/Memo

备注/Memo:
第一作者:男, 1965年生, 讲师.
更新日期/Last Update: 2000-01-20