ON INSTABILITIES IN TIME MARCHING METHODS | Zendy

Juan Becerra | Zendy; Félix Vega | Zendy; Farhad Rachidi | Zendy

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ON INSTABILITIES IN TIME MARCHING METHODS

Author(s) -

Juan Becerra,

Félix Vega,

Farhad Rachidi

Publication year - 2016

Publication title -

progress in electromagnetics research c

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.341

H-Index - 34

ISSN - 1937-8718

DOI - 10.2528/pierc16062905

Subject(s) - computer science , fast marching method , control theory (sociology) , artificial intelligence , control (management)

We discuss in this paper the stability of the time marching (TM) method. We identify one cause of instability in the method associated with the calculation of variables involved in the convolution operation. We provide a solution to this problem, preventing the appearance of unstable poles in the Z-domain. This solution is fundamentally different from other previously presented approaches in the sense that it is not based on filtering or predictive techniques. Instead, it consists of preprocessing the known variable in the convolution equations.

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