鎖相鑒頻器混沌現(xiàn)象的研究
Study of chaotic phenomena of phase-locked frequency detector
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摘要: 該文研究無線電技術(shù)與現(xiàn)代通信領域廣泛使用的鎖相鑒頻器中的混沌現(xiàn)象,利用Melnikov方法,證明了當輸入信號參數(shù)、系統(tǒng)參數(shù)滿足一定條件時,鎖相鑒頻器有混沌信號輸出。通過電路實驗,從頻譜分析儀上觀察到電路出現(xiàn)混沌時,壓控振蕩器輸出端的連續(xù)頻譜,進一步證實了鎖相鑒頻器電路中存在混沌現(xiàn)象。實驗結(jié)果與理論分析相吻合,文中的結(jié)論對實際設計和應用鎖相鑒頻器,具有重要的指導意義。
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關(guān)鍵詞:
- 鎖相鑒頻器; 混沌; Mel nikov方法; 連續(xù)頻譜
Abstract: 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. -
鄭繼禹,萬心平,張厥盛,鎖相環(huán)原理與應用,北京,人民郵電出版社,1984,41-52.[2]仇洪冰,鄭繼禹,UHF單環(huán)跳頻頻率合成技術(shù)的研究,桂林電子工業(yè)學院學報,1992,11(2),1-8.[3]譚永明,葛渭高,鄭繼禹,鋸齒形采樣鑒頻頻率合成器中的混沌現(xiàn)象的研究,通信學報,2001,22(3),20-26.[4]A. Mees, C. Sparrow, Some tools for analyzing chaos, Proc. IEEE, 1987, 75(8), 1058-1070.[5]F.M.A. Salam, S. S. Sastry, Dyna of the forced Josephson hunction circuit, the regions of chaos,IEEE, Trans. on Circuits and Systems, 1985, 32(8), 784-796.[6]F.M.A. Salam, J. E. Marsden, P. Vaiya, Chaos and arnold diffusion in dynamical systems, IEEE,Trans. on Circuits and Systems, 1983, 30(9), 697-708. -
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