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Volume 26 Issue 11
Nov.  2004
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Si Qiang, Xiang Jing-cheng. On The Mirror Image Interference in Direct Digital Waveform Synthesis[J]. Journal of Electronics & Information Technology, 2004, 26(11): 1766-1770.
Citation: Si Qiang, Xiang Jing-cheng. On The Mirror Image Interference in Direct Digital Waveform Synthesis[J]. Journal of Electronics & Information Technology, 2004, 26(11): 1766-1770.

On The Mirror Image Interference in Direct Digital Waveform Synthesis

  • Received Date: 2003-05-25
  • Rev Recd Date: 2004-04-02
  • Publish Date: 2004-11-19
  • This paper discusses the mirror image interference in direct digital waveform synthesis. The formation and distribution characteristics of mirror images are illuminated, and the impact of sampling rate which brings mirror image interference is analyzed. Based on these, the condition of sampling rate which results in mirror image interference is concluded and proved by experiment. The conclusion provides new theoretical basis on sampling rate selection in digital waveform synthesis.
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  • Reinhardt V S. Spur reduction techniques in direct digital synthesizers. Proc. IEEE International Frequency Control Symp., Salt Lake City, U.S.A, June 2-4, 1993: 230-241.[2]Calbaza D E, Savaria Y. Jitter model of direct digital synthesis clock generators. Proc. IEEE International Circuits and Systems Symp., Orlando, Florida, May 30-June 2, 1999, (1), 1-4.[3]Nicholas H T, Samueli H. An analysis of the output spectrum of direct digital frequency synthesizer in the presence of phase accumulator truncation. Proc. 41st Annual Frequency Control Symp., USERACOM, Ft. Monmouth, NJ, May 1987: 495-502.[4]Perez-Alcazar P R, Santos A. Relationship between sampling rate and quantization noise. 14th International Conference on Digital Signal Processing, 2002(2), Aegean Island of Santorini, Greece,July 1-3: 807-810.[5]李春明,孙圣和.数/模转换器输出毛刺对数字合成信号影响的分析及其消除方法.仪器仪表学报,1996,17(6):561-565.
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