Electromagnetic Transient modelling Using Adaptive Frequency Sampling (CROSBI ID 27997)
Prilog u knjizi | izvorni znanstveni rad
Podaci o odgovornosti
Tham, Choy Yoong ; McCowen, Andrew ; Towers, Malcom S. ; Poljak, Dragan
engleski
Electromagnetic Transient modelling Using Adaptive Frequency Sampling
The main difficulty in modelling transients via the frequency domain in highly resonant structures is to extract the complete information from its frequency response spectrum. The selection of suitable values for the number of samples and the frequency resolution determines the accuracy of the result. However, neither of these parameters are known prior to simulation. A high Q spectrum requires high resolution samples which if taken at uniform intervals for the FFT will result in a large number of samples. The proposed dynamic adaptive sampling technique takes the samples at intervals according to the requirement at different points of the spectrum. It will, without a priori knowledge of the spectrum, concentrate samples around resonant frequencies. The method has successfully overcome the difficulty without incurring the penalty of increasing computer time.
Fast Fourier Transform ; Resonant Structure ; Resonant Point ; Excitation Waveform ; Electric Field Integral Equation
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Podaci o prilogu
639-646.
objavljeno
10.1007/0-306-47948-6_76
Podaci o knjizi
Ultra-Wideband Short-Pulse Electromagnetics 5
Smith, Paul D. ; Cloude, Shane R.
New York (NY): Kluwer Academic Publishers ; Plenum Publishers
2002.
0-306-47338-0