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Implementação computacional para cálculo da convolução de sinais contínuos e discretos no tempo e aplicações
(Universidade Federal do Rio Grande do NorteBrasilUFRNEngenharia de Computação, 2020-12-03)
The study of signals and systems makes a study field very important for Engineering. It’s
through this kind of study that it’s possible to model, represent, study and understand various
phenomena that occurs in peoples ...
Analysis of the exponential linear pulse in baseband digital communication systems
(IEEE, 2017)
In digital communication systems the use of filters
that fulfill the first Nyquist criterion (Nyquist-I), guarantees
that a sequence of pulses will not be affected by inter-symbol
interference (ISI) if the receiver ...
On the Validity of the Relationship 1/T = 1/T B+1/T S+1/T D in NMR Techniques With Regards to Permeability Estimation of Natural Porous Media
(Frontiers Media, 2021)
One of the most relevant feature of geophysical techniques based on nuclear magnetic resonance is their ability to estimate the permeability of natural porous media, since other geophysical techniques, as the use of the ...
On the exponential approximation of type II error probability of distributed test of independence
(IEEE-Inst Electrical Electronics Engineers, 2021)
This paper studies distributed binary test of statistical independence under communication (information bits) constraints. While testing independence is very relevant in various applications, distributed independence test ...
Identification of fractional-order transfer functions using exponentially modulated signals with arbitrary excitation waveforms
(2020-08-01)
This paper proposes a new identification method based on an exponential modulation scheme for the determination of the coefficients and exponents of a fractional-order transfer function. The proposed approach has a broader ...
A New Method for Static Video Summarization Using Local Descriptors and Video Temporal Segmentation
(Scopus, 2013)
The continuous creation of digital video has caused an exponential growth of digital video content. To increase the usability of such large volume of videos, a lot of research has been made. Video summarization has been ...
Enhancing weak signal transmission through a feedforward network
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INCPISCATAWAY, 2012)
The ability to transmit and amplify weak signals is fundamental to signal processing of artificial devices in engineering. Using a multilayer feedforward network of coupled double-well oscillators as well as Fitzhugh-Nagumo ...
Mother wavelet functions generalized through q-exponentials
(2004)
We generalize somewidely usedmotherwavelets by means of the q-exponential function ex q ≡ [1 + (1 − q)x]1/(1−q) q ∈ R, ex1 = ex that emerges from nonextensive statistical mechanics. In particular, we define extended versions ...
A fractal time thermal model for predicting the surface temperature of air-cooled cylindrical Li-ion cells based on experimental measurements
(Elsevier, 2016)
This paper presents a experimentally-validated fractal time thermal model to describe the discharge and
cooling down processes of air-cooled cylindrical Lithium-ion cells. Three cases were studied, a spatially
isolated ...