Fast recursive algorithms for short-time discrete cosine transform |
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Authors: | Kober V. Cristobal G. |
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Affiliation: | Inst. de Opt., CSIC, Madrid; |
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Abstract: | Local adaptive signal processing can be carried out using the short-time discrete cosine transform (DCT). Two fast recursive algorithms for computing the short-time DCT are presented. The algorithms are based on a recursive relationship between three subsequent local DCT spectra. The computational complexity of the algorithms is compared with that of fast DCT algorithms |
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