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Nonlinear time-domain modeling by multiresolution time domain (MRTD)
IEEE Transactions on Microwave Theory and Techniques, 1997A multiresolution time-domain (MRTD) scheme based on the expansion in scaling functions is applied to the modeling of nonlinear pulse propagation. Appropriate absorbers for the MRTD scheme are presented and their performance is discussed. The differences using pulse functions and nonlocalized basis functions like the Battle-Lemarie scaling functions ...
M. Krumpholz, H.G. Winful, L.P.B. Katehi
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Edge magnetoplasmons in the time domain
Physical Review B, 1992We have studied edge magnetoplasmons (EMP's) created by pulses of 100 ps width in a high-mobility two-dimensional electron gas, using a cryogenic transistor. We find that magnetoplasmon motion along the edge occurs only in the direction expected for negatively charged electrons; there is no hint of propagation in the opposite direction expected for ...
, Ashoori +4 more
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Time-domain cepstral transformations
IEEE Transactions on Signal Processing, 1993The realization of homomorphic systems for convolution is addressed, motivated by the limitations of the Fourier-transform-based method commonly used in homomorphic (complex cepstral) filtering. The time-domain cepstral transformation (TDCT) method, which is entirely based on time-domain calculations, thus avoiding or minimizing the problems associated
Radomir T. Sokolov, James C. Rogers
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Time domain approximations in the solution of fields by time domain diakoptics
International Journal for Numerical Methods in Engineering, 1982AbstractThe numerical solution of field substructures in time domain diakoptics requires an interation time consistent with the numerical accuracy required. When storing and reconnecting the substructures, the information required can be obtained from considerably fewer samples.
Johns, P. B., Akhtarzad, K.
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Pulse and time-domain measurements
Proceedings of the IEEE, 1986A review of the state of the art and science of pulse parameter measurements is given including recent advances in the use of real-time oscilloscopes, waveform recorders, equivalent time sampling oscilloscopes, and counter timers in the measurement of repetitive and single transient signals. Recent advances in the use of artifact waveform standards and
Robert A. Lawton +2 more
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Subpicosecond-time-domain reflectometry
Optics Letters, 1981We demonstrate a new method of optical time-domain reflectometry using subpicosecond pulses and nonlinear detection. The high-spatial-resolution ( approximately 15-microm) temporal resolution and sensitivity put new limits on the size and nature of defects that can be detected, localized, and analyzed in optical fibers.
J J, Fontaine +3 more
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Non destructive evaluation in the time domain
COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, 1999In this paper a method is presented for an efficient solution of the direct problem (find the scattered field for a given thin crack and driving field) in the time domain. This is a fundamental step in any non destructive evaluation problem. Two different approaches, one in the time domain and the other based on Fourier analysis, are used and compared ...
ALBANESE, Raffaele +3 more
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