[HTML][HTML] Linear and synchrosqueezed time–frequency representations revisited: Overview, standards of use, resolution, reconstruction, concentration, and algorithms

D Iatsenko, PVE McClintock, A Stefanovska - Digital Signal Processing, 2015 - Elsevier
Time–frequency representations (TFRs) of signals, such as the windowed Fourier transform
(WFT), wavelet transform (WT) and their synchrosqueezed versions (SWFT, SWT), provide …

The infogram: Entropic evidence of the signature of repetitive transients

J Antoni - Mechanical Systems and Signal Processing, 2016 - Elsevier
A classical symptom of rotating machines faults in vibration signals is the presence of
repetitive transients, whose distinctive signature is both impulsive and cyclostationary …

An accurate sleep stages classification system using a new class of optimally time-frequency localized three-band wavelet filter bank

M Sharma, D Goyal, PV Achuth, UR Acharya - Computers in biology and …, 2018 - Elsevier
Sleep related disorder causes diminished quality of lives in human beings. Sleep scoring or
sleep staging is the process of classifying various sleep stages which helps to detect the …

Non-dominated solution set based on time–frequency infograms for local damage detection of rotating machines

X Jiang, J Shi, W Huang, Z Zhu - ISA transactions, 2019 - Elsevier
The determination of an index to balance the impulsiveness and cyclostationarity of an
expected component is an interesting research topic in mechanical health monitoring. Many …

Design of time–frequency localized filter banks: transforming non-convex problem into convex via semidefinite relaxation technique

M Sharma, D Bhati, S Pillai, RB Pachori… - Circuits, Systems, and …, 2016 - Springer
We present a method for designing optimal biorthogonal wavelet filter banks (FBs). Joint
time–frequency localization of the filters has been chosen as the optimality criterion. The …

An eigenfilter-based approach to the design of time-frequency localization optimized two-channel linear phase biorthogonal filter banks

M Sharma, VM Gadre, S Porwal - Circuits, Systems, and Signal …, 2015 - Springer
We present a novel eigenfilter-based approach to the design of time-frequency optimized,
linear-phase, biorthogonal FIR filter banks. We first design a linear-phase, low-pass analysis …

Intensity correlation imaging design for geostationary satellite inspection

DC Hyland - Applied Optics, 2024 - opg.optica.org
Recent advances in the reduction of the integration time required of intensity correlation
imaging (ICI) have opened the possibility for significant improvements in astronomical …

Improved integration time estimates for intensity correlation imaging

DC Hyland - Applied Optics, 2022 - opg.optica.org
Despite the simplicity of flux collecting hardware, robustness to misalignments, and immunity
to seeing conditions, intensity correlation imaging arrays using the Brown–Twiss effect to …

On computing the discrete Hirschman transform

D Xue, LS DeBrunner… - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
The Discrete Hirschman Transform (DHT) is a generalization of the entropy-based
Hirschman Transform that canonically represents digital signals with sparse basis functions …

Linear convolution filter to reduce computational complexity based on discrete hirschman transform

D Xue, LS DeBrunner… - IEEE Signal Processing …, 2019 - ieeexplore.ieee.org
A Fast linear convolution algorithm based on the Discrete Hirschman Transform (DHT)
provides increased hardware flexibility and reduced computational complexity compared to …