Fuzzy entropy and its application for enhanced subspace filtering

HB Xie, B Sivakumar, TW Boonstra… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
Fuzzy entropy (FuzzyEn), which employs the fuzzy probability to characterize the similarity
between vectors, is a robust nonlinear statistic to quantify the complexity or regularity of …

[HTML][HTML] Laboratory study of wave-induced flexural motion of ice floes

H Li, ED Gedikli, R Lubbad - Cold Regions Science and Technology, 2021 - Elsevier
Wave-ice interactions involve complex physical processes. Well-designed laboratory
investigations are indispensable for studying these processes. In the present study …

A grid-based nonlinear approach to noise reduction and deconvolution for coupled systems

SJ Araki, JW Koo, RS Martin… - Physica D: Nonlinear …, 2021 - Elsevier
To varying degrees, all experimental measurements are corrupted by real-world noise
sources including electronic noise in the acquisition system, far-field perturbations in the …

Improvements to local projective noise reduction through higher order and multiscale refinements

JM Moore, M Small, A Karrech - Chaos: An Interdisciplinary Journal of …, 2015 - pubs.aip.org
The broad spectrum characteristic of signals from nonlinear systems obstructs noise
reduction techniques developed for linear systems. Local projection was developed to …

[HTML][HTML] Clustering based multiple state–space projections

MP Kotas, A Dyrek, M Piela, JM Leski - Signal Processing, 2021 - Elsevier
Abstract The method of Nonlinear State–Space Projections (NSSP) is very effective in
suppression of white Gaussian noise; however, in colored noise environment its operation is …

Estimation of biophysical parameters in a neuron model under random fluctuations

RK Upadhyay, C Paul, A Mondal… - Applied Mathematics and …, 2018 - Elsevier
In this paper, an attempt has been made to estimate the biophysical parameters in an
improved version of Morris–Lecar (M–L) neuron model in a noisy environment. To observe …

Fault classification of rotary machinery based on smooth local subspace projection method and permutation entropy

L Xiao, Y Lv, G Fu - Applied Sciences, 2019 - mdpi.com
Collected mechanical signals usually contain a number of noises, resulting in erroneous
judgments of mechanical condition diagnosis. The mechanical signals, which are nonlinear …

On clustering based nonlinear projective filtering of biomedical signals

T Przybyła, M Kotas, J Łęski - Biomedical signal processing and control, 2018 - Elsevier
We propose to modify the method of nonlinear state-space projections (NSSP) by
application of the technique of k-means clustering. NSSP performs reconstruction of the …

Phase Space Smooth Mode Decomposition for Bearing Fault Diagnosis

H Liu, R Yuan, Y Lv, W Sun… - … & Data Analytics in the era …, 2023 - ieeexplore.ieee.org
In the field of rolling bearing fault diagnosis, significant attention has been devoted to
modeling and identifying parameters for the vibration dynamic system. Aiming at the …

[HTML][HTML] Toward a unified interpretation of the “proper”/“smooth” orthogonal decompositions and “state variable”/“dynamic mode” decompositions with application to …

AA Khan, J Kuehl, D Chelidze - AIP Advances, 2020 - pubs.aip.org
A common interpretation is presented for four powerful modal decomposition
techniques:“proper orthogonal decomposition,”“smooth orthogonal decomposition,”“state …