Octonion spectrum of 3D short-time LCT signals

MY Bhat, AH Dar - Optik, 2022 - Elsevier
This work is devoted to the development of the octonion linear canonical transform (OLCT)
theory proposed by Gao and Li in 2021 that has been designated as an emerging tool in the …

Scaled Wigner distribution in the offset linear canonical domain

MY Bhat, AH Dar - Optik, 2022 - Elsevier
The scaled Wigner distribution is obtained from the classical Wigner distribution by replacing
the instantaneous auto-correlation with fractional instantaneous auto-correlation which is …

Scaled ambiguity function and scaled Wigner distribution for LCT signals

AH Dar, MY Bhat - Optik, 2022 - Elsevier
In this article, a new version of ambiguity function (AF) and Wigner distribution (WD) based
on the linear canonical transform (LCT) and the fractional instantaneous auto-correlation are …

Bearing fault diagnosis using a hybrid fuzzy V-structure fault estimator scheme

F Piltan, JM Kim - Sensors, 2023 - mdpi.com
Bearings are critical components of motors. However, they can cause several issues. Proper
and timely detection of faults in the bearings can play a decisive role in reducing damage to …

Quadratic-phase scaled Wigner distribution: convolution and correlation: Quadratic-phase scaled Wigner distribution

MY Bhat, AH Dar - Signal, Image and Video Processing, 2023 - Springer
In this paper, we propose the novel integral transform coined as the quadratic-phase scaled
Wigner distribution (QSWD) by extending the Wigner distribution associated with quadratic …

Donoho-Stark's and Hardy's uncertainty principles for the short-time quaternion offset linear canonical transform

AH Dar, YM Bhat - Filomat, 2023 - doiserbia.nb.rs
The quaternion offset linear canonical transform (QOLCT) which is time-shifted and
frequencymodulated version of the quaternion linear canonical transform (QLCT) provides a …

The two‐sided short‐time quaternionic offset linear canonical transform and associated convolution and correlation

MY Bhat, AH Dar - Mathematical Methods in the Applied …, 2023 - Wiley Online Library
In this paper, we introduce the two‐dimensional short‐time quaternion offset linear
canonical transform (ST‐QOLCT), which is a generalization of the classical short‐time offset …

Convolution theorems associated with quaternion linear canonical transform and applications

X Hu, D Cheng, KI Kou - Signal Processing, 2023 - Elsevier
Novel types of convolution operators for quaternion linear canonical transform (QLCT) are
proposed. Type one and two are defined in the spatial and QLCT spectral domains …

Uncertainty principles for Wigner–Ville distribution associated with the quaternion offset linear canonical transform

D Urynbassarova, Y El Haoui, F Zhang - Circuits, Systems, and Signal …, 2023 - Springer
Wigner–Ville distribution (WVD) associated with the quaternion offset linear canonical
transform (QOLCT)(WVD–QOLCT) is the known furthest generalization of the WVD in …

An Interplay of Wigner–Ville Distribution and 2D Hyper-Complex Quadratic-Phase Fourier Transform

MY Bhat, AH Dar, I Nurhidayat, S Pinelas - Fractal and Fractional, 2023 - mdpi.com
Two-dimensional hyper-complex (Quaternion) quadratic-phase Fourier transforms (Q-QPFT)
have gained much popularity in recent years because of their applications in many areas …