Towards improving accuracy of nonlinear time invariant VLSI circuits using volterra series based parametric analysis

摘要

This paper presents a novel model order reduction technique which is based on Volterra Series and can be effectively used for nonlinear time invariant high speed coupled integrated circuits. The salient features of this technique are, guarantees passivity of the reduced transfer function, and the availability of provable weighted error bounds for the reduced-order system. This paper shows that the proposed technique produces reduced systems that efficiently follow the time- and frequency-domain characteristics of the original system when variations in the circuit parameters are taken into consideration. All the simulation results have been carried out using Cadence© Design Simulator at 45nm technology node and to best of our knowledge, the experimental results show that the proposed model order reduction technique achieves more accuracy than the any existing reduction techniques in the literature.