Abstract：This paper studies chaotic phenomena of phase-locked frequency detector that is used extensively in radio technology and modern communication fields. By Mel’nikov’s method, phase-locked frequency detector will output chaotic signal when the system’s 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 oscillator’s 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.
谭永明; 邓立虎; 郑继禹. 锁相鉴频器混沌现象的研究[J]. 电子与信息学报, 2002, 24(9): 1251-1256 .
Tan Yongming①; Deng Lihu②; Zheng Jiyu③. Study of chaotic phenomena of phase-locked frequency detector. , 2002, 24(9): 1251-1256 .
2002, Vol. 24 
