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Published in:
2024 | OriginalPaper | Chapter
2. Harmonic Frames
Authors : Zhihua Zhang, Palle E. T. Jorgensen
Published in: Frame Theory in Data Science
Publisher: Springer International Publishing
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Abstract
The widely used harmonic analysis is to represent complex data as the composition of harmonically related sinusoids and cosinusoids. Unfortunately, this approach can only extract integer frequency features and global frequency features inside complex data. Through embedding non-integer frequency elements and local windows, various harmonic frames overcome these drawbacks and can adaptively mine local temporal, spatial, and spectral features of data.