Time-reassigned synchrosqueezing transform: The algorithm and its applications in mechanical signal processing

D He, H Cao, S Wang, X Chen - Mechanical Systems and Signal …, 2019 - Elsevier
Synchrosqueezing transform (SST) is an effective post-processing time-frequency analysis
(TFA) method in mechanical signal processing. It improves the concentration of the time …

Sparse time–frequency analysis of seismic data: Sparse representation to unrolled optimization

N Liu, Y Lei, R Liu, Y Yang, T Wei… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
Time–frequency analysis (TFA) is widely used to describe local time–frequency (TF) features
of seismic data. Among the commonly used TFA tools, sparse TFA (STFA) is an excellent …

Matching synchrosqueezing transform: A useful tool for characterizing signals with fast varying instantaneous frequency and application to machine fault diagnosis

S Wang, X Chen, IW Selesnick, Y Guo, C Tong… - … Systems and Signal …, 2018 - Elsevier
Synchrosqueezing transform (SST) can effectively improve the readability of the time-
frequency (TF) representation (TFR) of nonstationary signals composed of multiple …

Self-adaptive generalized S-transform and its application in seismic time–frequency analysis

N Liu, J Gao, B Zhang, Q Wang… - IEEE Transactions on …, 2019 - ieeexplore.ieee.org
Achieving a proper time-frequency (TF) resolution is the key to extract information from
seismic data using TF algorithms and characterize reservoir properties using decomposed …

SparseTFNet: A physically informed autoencoder for sparse time–frequency analysis of seismic data

Y Yang, Y Lei, N Liu, Z Wang, J Gao… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
The time–frequency (TF) analysis is an effective tool in seismic signal processing. The
sparsity-based TF transforms have been widely used to obtain high localized TF …

Time–frequency analysis of seismic data using a three parameters S transform

N Liu, J Gao, B Zhang, F Li… - IEEE Geoscience and …, 2017 - ieeexplore.ieee.org
The S transform (ST) is one of the most commonly used time-frequency (TF) analysis
algorithms and is commonly used in assisting reservoir characterization and hydrocarbon …

High-resolution seismic time–frequency analysis using the synchrosqueezing generalized S-transform

Q Wang, J Gao, N Liu, X Jiang - IEEE Geoscience and Remote …, 2018 - ieeexplore.ieee.org
In this letter, a new method is introduced for a seismic time-frequency (TF) analysis. The
proposed method is called synchrosqueezing generalized S-transform (SSGST), which …

Impact of river flow modification on wetland hydrological and morphological characters

TK Saha, S Pal, R Sarda - Environmental Science and Pollution Research, 2022 - Springer
A good number of researchers investigated the impact of flow modification on hydrological,
ecological, and geomorphological conditions in a river. A few works also focused on …

Analysis and diagnosis of shielded cable faults based on finite-element method and time-reversal time-frequency domain reflectometry

X Hua, L Wang, Y Zhang - IEEE Transactions on Industrial …, 2021 - ieeexplore.ieee.org
Due to the electrical, thermal, and mechanical stress, the insulating materials of cable
undergo a slow aging process in service, which leads to the decline of insulation …

Gaussian-modulated linear group delay model: Application to second-order time-reassigned synchrosqueezing transform

Z He, X Tu, W Bao, Y Hu, F Li - Signal Processing, 2020 - Elsevier
This paper considers the analysis of impulsive-like signals whose time-frequency ridge
curves are nearly perpendicular to the time axis. Although the instantaneous frequency of …