PPV modelling of memristor-based oscillator

In this letter, we study the memristor-based oscillators, and propose for the first time the method of calculating its PPV (Perturbation Projection Vector). In order to get PPV, we have deduced the formula to convert PRC (Phase Response Curve) to PPV. The conversion method is verified rigorously by comparing PPV obtained from PSS+PXF simulation and PRC calculated from transient simulation of two transistor-level Colpitts and ring oscillator. Interestingly we also find the relevance between the shape of PPV curve and the circuit parameters. Thanks to its high efficiency, the PPV of the memristorbased oscillator can serve as the basis for the fast simulation of phase noise and large scale oscillatory neural networks.