a signal processing method

Wavelet transform, a signal processing method, is good for feature extraction and dimensionality reduction, and could be an interesting addition to the analysis of smart meter data but was not encountered in any of the papers.

a mathematical tool that indicates time variations of frequency in a signal

On the other hand, wavelet transform is a mathematical tool that indicates time variations of frequency in a signal.

bandpass representation of a signal

The wavelet transform is a multiresolution, bandpass representation of a signal.

a signal processing approach that decomposes a signal into multiple frequency subbands

A wavelet transform is a signal processing approach that decomposes a signal into multiple frequency subbands.

mathematical tools for analyzing data where features vary over different scales

Wavelet transforms are mathematical tools for analyzing data where features vary over different scales.

the technique that provides both spatial and frequency domain information

Wavelet transformation is the technique that provides both spatial and frequency domain information.

a powerful tool to analyze non-stationary signals [12]

As stated before, wavelet transform is a powerful tool to analyze non-stationary signals [12].

a powerful tool that has been employed for pre-processing, localization, and classification

Wavelet transform is a powerful tool that has been employed for pre-processing, localization, and classification.

that cuts up signal or functions into different frequency components

The wavelet transform is a powerful tool that cuts up signal or functions into different frequency components, and then studies each component with a resolution matched to a resolution's scale.

the emerging signal-processing tools for damage identification and time-frequency localization

Wavelet transforms are the emerging signal-processing tools for damage identification and time-frequency localization.

technique , a time-frequency method with logarithmic frequency resolution

The wavelet transform technique, a time-frequency method with logarithmic frequency resolution, was used to analyze oscillations in human peripheral blood flow measured by laser Doppler flowmetry.

powerful method that can flexibly represent the time-frequency content of a signal

Wavelet transform is a powerful method that can flexibly represent the time-frequency content of a signal.

— image analysis, data compression

Wavelet transform — image analysis, data compression.

As a powerful mathematical tool for analyzing singularities and edges

As a powerful mathematical tool for analyzing singularities and edges, the wavelet transform is employed to detect and estimate the local spectral irregular structure, which carries important information on the frequency locations and power spectral densities of the subbands.

A signal processing technique called wavelet transform

A signal processing technique called wavelet transform is applied to a series of genomically arranged expression profiles to identify regions of coordinated transcription.