[1] Wang Lian, Wang Mu-qiu, Lu Zhi-qi, Qualitative analysis of the third order phase locked loop with the tangent character of detected phase, Acta Mathematical Applicatae Sinica, 7, 5(1984).(in Chinese)
[2] Lindsey, W. C., Synchronization System in Communication and Control, Chapter 3, Prentice-Hall, Inc. Englewood Cliffs, New Jersey (1972), 16, 121-122.
[3] Wang Lian, Wang Mu-qiu, Qualitative Analysis of Nonlinear Ordinary Equations, Haerbin University of Technology Press (1987).(in Chinese)
[4] Gu Yao-qi, Lock phase, Science Press (1975).(in Chinese)
[5] Qin Yuan-sun, Integral Curves Defined by Differential Equations, Science Press (1959).(in Chinese) |
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