Journal Article

·2012

Efficient Simulation of Time-Derivative Cellular Neural Networks

Sadiye Nergis Tural-Polat YTU , Oğuzhan Yavuz YTU , V. Tavşanoglu YTU

IEEE Transactions on Circuits and Systems I Regular Papers

Abstract

A fast simulation method for time-derivative cellular neural networks (TDCNN) is proposed. Using forward Euler approximation (FEA) for the derivative of the cell state and the backward Euler approximation (BEA) for the derivatives of the neighboring cell states enables the recursive computation of the cell state and provides a speed advantage of orders of magnitude. The state equations are then packed into a vector-matrix form which enables the previously empirically given time constraint to be expressed as a matrix condition. It is shown that using both FEA and BEA leads to a second-order difference equation whose corresponding second-order differential equation is derived and shown to yield the same simulation results.

Keywords

Euler method Derivative (finance) Computation Applied mathematics Matrix (chemical analysis) Differential equation Constraint (computer-aided design) Artificial neural network Euler's formula Time derivative Mathematics Finite element method State vector Computer science Algorithm Mathematical analysis Physics Geometry Chemistry

Subject Areas

Neural Networks Stability and Synchronization ·Computer Networks and Communications ·Physical Sciences
Nonlinear Dynamics and Pattern Formation ·Computer Networks and Communications ·Physical Sciences
stochastic dynamics and bifurcation ·Statistical and Nonlinear Physics ·Physical Sciences

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