Zobrazeno 1 - 10
of 41
pro vyhledávání: '"Bessis, Daniel"'
Neuronal activity in the brain generates synchronous oscillations of the Local Field Potential (LFP). The traditional analyses of the LFPs are based on decomposing the signal into simpler components, such as sinusoidal harmonics. However, a common dr
Externí odkaz:
http://arxiv.org/abs/1806.06412
We present a new method to locate the starting points in time of an arbitrary number of (damped) delayed signals. For a finite data sequence, the method permits to first locate the starting point of the component with the longest delay, and then --by
Externí odkaz:
http://arxiv.org/abs/1703.07001
From a time series whose data are embedded in heavy noise, we construct an Hilbert space operator (J-operator) whose discrete spectrum represents the signal while the essential spectrum located on the unit circle, is associated with the noise. Furthe
Externí odkaz:
http://arxiv.org/abs/1009.6021
Autor:
Bessis, Daniel, Perotti, Luca
We propose to apply to the detection of Gravitational Waves a new method developed for the spectral analysis of noisy time-series of damped oscillators. From the Pad\'e Approximations of the time-series Z-transform, a Jacobi Matrix (J-Matrix) is cons
Externí odkaz:
http://arxiv.org/abs/0905.2000
Autor:
Bessis, Daniel, Perotti, Luca
We propose a new method in the spectral analysis of noisy time-series data for damped oscillators. From the Jacobi three terms recursive relation for the denominators of the Pad\'e Approximations built on the well-known Z-transform of an infinite tim
Externí odkaz:
http://arxiv.org/abs/0807.3101
Autor:
Perotti, Luca, Bessis, Daniel
We discuss the construction of optimized electronic filters using inverse scattering methods. We study a wide range of densities and temperatures, room temperature included. Discretization methods of the potential (including the self-consistent poten
Externí odkaz:
http://arxiv.org/abs/cond-mat/0304340
The uniqueness of a surface density of sources localized inside a spatial region $R$ and producing a given electric potential distribution in its boundary $B_0$ is revisited. The situation in which $R$ is filled with various metallic subregions, each
Externí odkaz:
http://arxiv.org/abs/physics/0003048
Autor:
Bessis, Daniel, Mezincescu, G. Andrei
Publikováno v:
Microelectronics J. 30 (1999) 953-974
We present the application of the inverse scattering method to the design of semiconductor heterostructures having a preset dependence of the (conduction) electrons' reflectance on the energy. The electron dynamics are described by either the effecti
Externí odkaz:
http://arxiv.org/abs/cond-mat/9903445