Chaos on Phase Noise of Van Der Pol Oscillator

Gang Feng Yan (University of Electronic Science and Technology of China)
Xian He Huang (University of Electronic Science and Technology of China)

TELKOMNIKA (Telecommunication Computing Electronics and Control)
Vol 8, No 3: December 2010

 Phase noise is the most important parameter in many oscillators. The proposed method in this paper is based on nonlinear stochastic differential equation for phase noise analysis approach. The influences of two different sources of noise in the Van Der Pol oscillator adopted this method are compared. The source of noise is a white noise process which is a genuinely stochastic process and the other is actually a deterministic system, which exhibits chaotic behavior in some regions. The behavior of the oscillator under different conditions is investigated numerically. It is shown that the phase noise of the oscillator is affected by a noise arising from chaos than a noise arising from the genuine stochastic process at the same noise intensity.