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A new numerical method for SDEs and its application in circuit simulation

机译:SDE的一种新数值方法及其在电路仿真中的应用

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摘要

In the context of computer-aided design of electric circuits, the modeling of circuits under the influence of electronic noise leads to stochastic differential-algebraic equations (SDAEs). A new numerical integration scheme for the pathwise approximative solution of stochastic differential equations (SDEs) is presented. The available numerical schemes for SDEs cannot solve these equations efficiently. The new discretization scheme is constructed by the means of Ito-Taylor expansions. A Fortran77 implementation of the presented integration scheme reduces the simulation time for a ring oscillator to about 85% compared with common methods.
机译:在电路的计算机辅助设计的背景下,在电子噪声影响下的电路建模会导致随机微分-代数方程(SDAE)。针对随机微分方程(SDE)的路径近似解,提出了一种新的数值积分方案。 SDE可用的数值方案不能有效地求解这些方程。新的离散化方案是通过Ito-Taylor扩展构造的。与常规方法相比,所提出的集成方案的Fortran77实现将环形振荡器的仿真时间减少到大约85%。

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