ISSN 0869-6632 (Print)
ISSN 2542-1905 (Online)


finite differences

The discrete van der paul oscillator: finite differences and slow amplitudes

For sampling of time in a differential equation of movement of van der Pol oscillator (generator) it is offered to use a combination of the numerical method of finite differences and the asymptotic method of the slowl-changing amplitudes. The difference approximations of temporal derivatives are selected so that, first, to save conservatism and natural frequency of the linear circuit of self-oscillatory system in the discrete time.