A basis for efficient representation of the S-transform

RG Stockwell - Digital signal processing, 2007 - Elsevier
The S-transform is a time-frequency representation known for its local spectral phase
properties. A key feature of the S-transform is that it uniquely combines a frequency …

Fast discrete orthonormal Stockwell transform

Y Wang, J Orchard - SIAM Journal on Scientific Computing, 2009 - SIAM
We present an efficient method for computing the discrete orthonormal Stockwell transform
(DOST). The Stockwell transform (ST) is a time-frequency decomposition transform that is …

[HTML][HTML] Gravity waves in the winter stratosphere over the Southern Ocean: high-resolution satellite observations and 3-D spectral analysis

NP Hindley, CJ Wright, ND Smith… - Atmospheric …, 2019 - acp.copernicus.org
Atmospheric gravity waves play a key role in the transfer of energy and momentum between
layers of the Earth's atmosphere. However, nearly all general circulation models (GCMs) …

Power quality analysis using Discrete Orthogonal S-transform (DOST)

MJB Reddy, RK Raghupathy, KP Venkatesh… - Digital Signal …, 2013 - Elsevier
Power quality is one of the major issues in the modern electrical power world. The
widespread usage of power electronic devices and non-linear loads make the power system …

Observations of the 5-day wave in the mesosphere and lower thermosphere

DM Riggin, HL Liu, RS Lieberman, RG Roble… - Journal of Atmospheric …, 2006 - Elsevier
The 5-day wave is the gravest symmetric Hough mode of westward propagating zonal
wavenumber 1. This wave is observed using the SABER instrument aboard the TIMED …

Analysis of ECG signal denoising method based on S-transform

MK Das, S Ari - Irbm, 2013 - Elsevier
Electrocardiogram (ECG), a noninvasive technique which is used generally as a primary
diagnostic tool for cardiovascular diseases. A cleaned ECG signal provides necessary …

Seasonal changes in gravity wave activity measured by lidars at mid-latitudes

M Rauthe, M Gerding, FJ Lübken - Atmospheric Chemistry and …, 2008 - acp.copernicus.org
More than 230 nights of temperature measurements between 1 and 105 km have been
performed at the Leibniz-Institute of Atmospheric Physics in Kühlungsborn with a …

A DOST based approach for the condition monitoring of 11 kV distribution line insulators

MJB Reddy, BK Chandra… - IEEE Transactions on …, 2011 - ieeexplore.ieee.org
The diminishing trend of reliability owing to possible power system failures has become a
serious concern for the power system as a whole. It has necessitated the development of …

Real‐time condition monitoring of substation equipment using thermal cameras

D Pal, R Meyur, S Menon, MJB Reddy… - IET Generation …, 2018 - Wiley Online Library
The recent trend of decreasing reliability of the existing power grid due to various kinds of
equipment failures at the transmission and distribution level, has led the researchers to …

The 6.5‐day wave in the mesosphere and lower thermosphere: Evidence for baroclinic/barotropic instability

RS Lieberman, DM Riggin, SJ Franke… - Journal of …, 2003 - Wiley Online Library
A westward propagating zonal wave number 1 wave with a period near 6.5 days was a
prominent feature in the mesosphere and lower thermosphere (MLT) during the 1994 …