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Volume 24 Issue 9
Sep.  2002
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Tan Yongming, Deng Lihu, Zheng Jiyu. Study of chaotic phenomena of phase-locked frequency detector[J]. Journal of Electronics & Information Technology, 2002, 24(9): 1251-1256.
Citation: Tan Yongming, Deng Lihu, Zheng Jiyu. Study of chaotic phenomena of phase-locked frequency detector[J]. Journal of Electronics & Information Technology, 2002, 24(9): 1251-1256.

Study of chaotic phenomena of phase-locked frequency detector

  • Received Date: 2001-01-02
  • Rev Recd Date: 2001-09-28
  • Publish Date: 2002-09-19
  • This paper studies chaotic phenomena of phase-locked frequency detector that is used extensively in radio technology and modern communication fields. By Melnikovs method, phase-locked frequency detector will output chaotic signal when the systems parameter and the parameters of input signal satisfy certain conditions. By circuit experiment, when the circuit outputs chaotic signal, the continuous spectrum of the voltage-controlled oscillators output is observed from frequency spectrograph. The fact of phase-locked frequency detector exists chaotic phenomena is father verified. The experimental results and theory analysis correspond excellently with one another. The conclusion in this paper has importance directive significance for practical design and application of the phase-locked frequency detector.
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