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Volume 26 Issue 3
Mar.  2004
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Xie Ren-hong, Shi Xiang-quan. Precise Analysis of the Spurious Spectrum of DDS in the Presence of Phase Truncation[J]. Journal of Electronics & Information Technology, 2004, 26(3): 495-499.
Citation: Xie Ren-hong, Shi Xiang-quan. Precise Analysis of the Spurious Spectrum of DDS in the Presence of Phase Truncation[J]. Journal of Electronics & Information Technology, 2004, 26(3): 495-499.

Precise Analysis of the Spurious Spectrum of DDS in the Presence of Phase Truncation

  • Received Date: 2002-11-27
  • Rev Recd Date: 2003-06-12
  • Publish Date: 2004-03-19
  • Based on the analysis of the spurious spectrum introduced by phase truncation which was made by Nicholas, the new simplified algorithm of spurious spectrum in the presence of phase truncation is presented by using the mapping mathematics and number theory. It is possible to precisely analyze the spurious spectrum location and the spurious amplitude introduced by phase truncation in practical applications.
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  • Tierney J, Rader C M, Gold B. A digital frequency synthesizer. IEEE Trans. on Audio and Electroacoustics, 1971, AU-19(3): 48-57.[2]王利兴等.DDS在正交调制技术中的应用.电子技术应用,2002,28(3):48-49.[3]安建平,金松.DDS在相控阵雷达系统中的应用.现代雷达,2000,22(2):78 82.[4]朱范德.直接数字频率合成技术在ADC系统中的应用.现代电子技术,2002,132(1):81-83.[5]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, Monmouth, 1987: 495-502.[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.[7]赵正敏.相位截尾对DDS输出谱影响的分析与计算.东南大学学报,2000,30(1):141-145.
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