Results 1 to 10 of about 1,211 (213)

Local maximum synchrosqueezes form scaling-basis chirplet transform [PDF]

open access: goldPLoS ONE, 2022
In recent years, time-frequency analysis (TFA) methods have received widespread attention and undergone rapid development. However, traditional TFA methods cannot achieve the desired effect when dealing with nonstationary signals.
Yating Hou   +3 more
doaj   +4 more sources

Improving the Robustness of Time Difference of Arrival Estimation Based on the Energy Center of Gravity Rearrangement [PDF]

open access: yesSensors, 2023
An accurate estimation of the time difference of arrival (TDOA) is crucial in localization, communication, and navigation. However, a low signal-to-noise ratio (SNR) can decrease the reliability of the TDOA estimation result.
Peng Zhang   +3 more
doaj   +2 more sources

A Hybrid Approach for Time-Varying Harmonic and Interharmonic Detection Using Synchrosqueezing Wavelet Transform [PDF]

open access: goldApplied Sciences, 2021
With widespread non-linear loads and the increasing penetration of distributed generations in the power system, harmonic pollution has become a great concern.
Gary W. Chang   +4 more
doaj   +2 more sources

An Improved Synchrosqueezing S-Transform and Its Application in a GPR Detection Task [PDF]

open access: yesSensors
The S-transform is a fundamental time–frequency (T-F) domain analysis method in ground penetrating radar (GPR) data processing and can be used for identifying targets, denoising, extracting thin layers, and high-resolution imaging.
Hongqiang Xiong   +3 more
doaj   +2 more sources

Time-Frequency Reassignment and Synchrosqueezing: An Overview [PDF]

open access: yesIEEE Signal Processing Magazine, 2013
This article provides a general overview of time-frequency (T-F) reassignment and synchrosqueezing techniques applied to multicomponent signals, covering the theoretical background and applications. We explain how synchrosqueezing can be viewed as a special case of reassignment enabling mode reconstruction and place emphasis on the interest of using ...
François Auger   +2 more
exaly   +4 more sources

On the Use of Concentrated Time–Frequency Representations as Input to a Deep Convolutional Neural Network: Application to Non Intrusive Load Monitoring [PDF]

open access: yesEntropy, 2020
Since decades past, time–frequency (TF) analysis has demonstrated its capability to efficiently handle non-stationary multi-component signals which are ubiquitous in a large number of applications.
Sarra Houidi   +2 more
doaj   +2 more sources

An Improved Multivariate Synchrosqueezing Wavelet Transform Denoising Method Using Subspace Projection [PDF]

open access: goldIEEE Access, 2020
In recent years, the development of multi-sensor has emphasized the need to directly process multi-channel (multivariate) data. In this paper, a novel multivariate synchrosqueezing wavelet transform denoising method combined with subspace projection (SWT-
Peipei Cao, Huali Wang, Kaijie Zhou
doaj   +2 more sources

Geometry-Based Synchrosqueezing S-Transform with Shifted Instantaneous Frequency Estimator Applied to Gearbox Fault Diagnosis [PDF]

open access: yesSensors
This paper introduces a novel geometry-based synchrosqueezing S-transform (GSSST) for advanced gearbox fault diagnosis, designed to enhance diagnostic precision in both planetary and parallel gearboxes.
Xinping Zhu   +3 more
doaj   +2 more sources

Real-Time Variants of Vertical Synchrosqueezing: Application to Radar Remote Sensing [PDF]

open access: goldIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
This article presentsthorough research on using high-order vertical synchrosqueezing (VSS) in different radar remote sensing applications. The method well established in the literature is examined and compared to the novel form of third-order VSS and ...
Karol Abratkiewicz, Jacek Gambrych
doaj   +2 more sources

Crystal Image Analysis Using 2D Synchrosqueezed Transforms [PDF]

open access: greenMultiscale Modeling & Simulation, 2015
We propose efficient algorithms based on a band-limited version of 2D synchrosqueezed transforms to extract mesoscopic and microscopic information from atomic crystal images. The methods analyze atomic crystal images as an assemblage of non-overlapping segments of 2D general intrinsic mode type functions, which are superpositions of non-linear wave ...
Haizhao Yang   +2 more
openaire   +5 more sources

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