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Título: | An alternative inverse S-transform for filters with time-frequency localization |
Autor: | Schimmel, Martin CSIC ORCID ; Gallart Muset, Josep CSIC ORCID; Simon, Carine CSIC ORCID | Fecha de publicación: | 2005 | Editor: | Institute of Electrical and Electronics Engineers | Citación: | Image and Signal Processing and Analysis, 2005. ISPA 2005. Proceedings of the 4th International Symposium on 2005: 424- 429 (2005) | Resumen: | The S-transform provides a framework for data-adaptive filters which take advantage of time-frequency localized spectra. These filters basically consist in a data transformation to the time-frequency domain, a data-adaptive weighting of the localized spectra, and a back transformation. We illustrate that the inverse S-transform of manipulated spectra not necessarily transforms the localized signals as expected from the imposed weighting. The time localization is not directly translated and spurious signals and noise can be generated. We discuss this problem and suggest a new inverse S-transform which may come helpful to many applications to take more advantage of the time-frequency localization. | Versión del editor: | https://dx.doi.org/10.1109/ISPA.2005.195449 | URI: | http://hdl.handle.net/10261/154568 | DOI: | 10.1109/ISPA.2005.195449 | Identificadores: | doi: 10.1109/ISPA.2005.195449 issn: 1845-5921 |
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Schimmel_et_al_2005_postprint.pdf | 1,39 MB | Adobe PDF | Visualizar/Abrir |
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