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DDFS spurious signals due to amplitude quantization in absence of phase-accumulator truncation
Tian Xinguang1,2; Liu Xin1; Chen Hong1; Duan Miyi1,2
2009-06-01
发表期刊JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS
ISSN1004-4132
卷号20期号:3页码:485-492
摘要Spurious signals in direct digital frequency synthesizers (DDFSs) are partly caused by amplitude quantization and phase truncation, which affect their application to many wireless telecommunication systems. These signals are deterministic and periodic in the time domain, so they appear as line spectra in the frequency domain. Two types of spurious signals due to amplitude quantization are exactly formulated and compared in the time and frequency domains respectively. Then the frequency spectra and power levels of the spurious signals due to amplitude quantization in the absence of phase-accumulator truncation are emphatically analyzed, and the effects of the DDFS parameter variations on the spurious signals are thoroughly studied by computer simulation. And several important conclusions are derived which can provide theoretical support for parameter choice and spurious performance evaluation in the application of DDFSs.
关键词spurious signal direct digital frequency synthesizer amplitude quantization phase truncation power level
收录类别SCI
语种英语
资助项目National Grand Fundamental Research 973 Program of China[2004CB318109] ; National High Technology Research and Development Program of China (863 Program)[2006AA01Z452]
WOS研究方向Automation & Control Systems ; Engineering ; Operations Research & Management Science
WOS类目Automation & Control Systems ; Engineering, Electrical & Electronic ; Operations Research & Management Science
WOS记录号WOS:000267733700007
出版者SYSTEMS ENGINEERING & ELECTRONICS, EDITORIAL DEPT
引用统计
被引频次:3[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://119.78.100.204/handle/2XEOYT63/11443
专题中国科学院计算技术研究所期刊论文_英文
通讯作者Tian Xinguang
作者单位1.Beijing Jiaotong Univ, Inst Comp Technol, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Comp Technol, Beijing 100080, Peoples R China
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GB/T 7714
Tian Xinguang,Liu Xin,Chen Hong,et al. DDFS spurious signals due to amplitude quantization in absence of phase-accumulator truncation[J]. JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS,2009,20(3):485-492.
APA Tian Xinguang,Liu Xin,Chen Hong,&Duan Miyi.(2009).DDFS spurious signals due to amplitude quantization in absence of phase-accumulator truncation.JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS,20(3),485-492.
MLA Tian Xinguang,et al."DDFS spurious signals due to amplitude quantization in absence of phase-accumulator truncation".JOURNAL OF SYSTEMS ENGINEERING AND ELECTRONICS 20.3(2009):485-492.
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