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FDTD signal extrapolation using the forward-backward autoregressive (AR) model

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3 Author(s)
Jandhyala, V. ; Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA ; Michielssen, E. ; Mittra, R.

In this paper, the forward-backward autoregressive model is employed to extrapolate time domain signatures generated by the finite difference time domain algorithm with a view to speeding up the process of obtaining the frequency responses of EM systems. It is shown that the present method requires considerably lower-order predictors than those needed in other AR models, e.g, those based on Yule-Walker equations, and is therefore computationally efficient.<>

Published in:

Microwave and Guided Wave Letters, IEEE  (Volume:4 ,  Issue: 6 )