Temporal preconditioners for marching-on-in-time-based time domain integral equation solvers

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Turkish Journal of Electrical Engineering and Computer Science
Volume:25 Issue:4
Temporal preconditioners for marching-on-in-time-based time domain integral equation solvers

Temporal preconditioners for marching-on-in-time-based time domain integral equation solvers

Authors : HÜSEYİN ARDA ÜLKÜ

Pages : 2933-2942

View : 22 | Download : 11

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Temporal preconditioners to stabilize the marching-on-in-time insert ignore into journalissuearticles values(MOT);-based time domain integral equation insert ignore into journalissuearticles values(TDIE); solvers are proposed. Exponentially decaying functions are used as temporal preconditioners and the proposed scheme is applied to analyze scattering from perfect electrically conducting objects using the second-order formulation. The effectiveness of the proposed scheme is demonstrated via numerical examples. It is shown that the temporal preconditioners stabilize the MOT system and the solution. In addition, the initial condition problem of TDIEs is investigated by extending the second-order formulation of the time domain electric field integral equation to the time domain magnetic and combined field integral equations.
Keywords : Marching on in time method, time domain integral equations, stability, time domain analysis, transient analysis

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