直接数字频率合成器相位截断杂散谱的精确分析

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Abstract 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.

Key words： Direct digital frequency synthesis Phase truncation Spurious Mapping

Received: 27 November 2002

PACS:

TN74

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	Xie Ren-hong
	Shi Xiang-quan

Cite this article:

Xie Ren-hong,Shi Xiang-quan. Precise Analysis of the Spurious Spectrum of DDS in the Presence of Phase Truncation[J]. , 2004, 26(3): 495-499 .

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http://jeit.ie.ac.cn/EN/ OR http://jeit.ie.ac.cn/EN/Y2004/V26/I3/495