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Spectral estimation of terahertz time-domain signals using a simple parametric method
(Institution of Engineering and Technology, 2015-12)
A simple method for spectral estimation of terahertz signals using an autoregressive model is developed. The technique shows a better spectral variance and resolution over the use of the Fast Fourier Transform, which is ...
La factorización de una transformada de Fourier en el método de Wiener-HopfLa factorización de una transformada de Fourier en el método de Wiener-Hopf
(Universidad de Costa Rica, Centro de Investigación en Matemática Pura y Aplicada (CIMPA), 1998)
Inversion of Umarov-Tsallis-Steinberg's q-Fourier transform and the complex-plane generalization
(Elsevier Science, 2012-10)
We introduce a complex q-Fourier transform as a generalization of the (real) one analyzed in [S. Umarov, C. Tsallis, S. Steinberg, Milan J. Math. 307 (2008)]. By recourse to tempered ultradistributions we show that this ...
q-Fourier Transform and its Inversion-Problem
(Birkhauser Verlag Ag, 2012-04)
Tsallis' q-Fourier transform is not generally one-to-one. It is shown here that, if we eliminate the requirement that q be fixed, and let it instead "float", a simple extension of the F q definition, this procedure restores ...
Spectral phase: from basics to video-rate application to tuning-fork resonance characterizationFase espectral: de las ideas básicas a la aplicación en un video de la resonancia de un diapasón
(Universidad Centroccidental Lisandro Alvarado, 2018)
Generalized Hyperbolic Distributions and Brazilian DataGeneralized Hyperbolic Distributions and Brazilian Data
(Sociedade Brasileira de Econometria, 2004)
Algunos aspectos teóricos de las funciones casi periódicas n-dimensionalesAlgunos aspectos teóricos de las funciones casi periódicas n-dimensionales
(Universidad de Costa Rica, Centro de Investigación en Matemática Pura y Aplicada (CIMPA), 2000)
On the use of short-time fourier transform and synchrosqueezing-based demodulation for the retrieval of the modes of multicomponent signals
(Elsevier Science, 2021-01)
In this paper, our goal is to compare different recent time-frequency (TF) approaches to retrieve the modes of multicomponent signals (MCSs). While it is acknowledged that the synchrosqueezing transform (SST) improves the ...
Molecular view by Fourier transform infrared spectroscopy of the relationship between lactocin 705 and membranes: Speculations on antimicrobial mechanism
(American Society for Microbiology, 2007-01-20)
Lactocin 705 is a bacteriocin whose activity depends upon the complementation of two peptides, termed Lac705α and Lac705β. Neither Lac705α nor Lac705β displayed bacteriocin activity by itself when the growth of sensitive ...