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Fast algorithms for the computation of sliding discrete sinusoidal transforms

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1 Author(s)
Kober, V. ; Dept. of Comput. Sci., CICESE, Ensenada, Mexico

Fast algorithms for computing various discrete cosine transforms and discrete sine transforms in a sliding window are proposed. The algorithms are based on a recursive relationship between three subsequent local transform spectra. Efficient inverse algorithms for signal processing in a sliding window are also presented. The computational complexity of the algorithms is compared with that of known fast discrete sinusoidal transforms and running recursive algorithms.

Published in:

Signal Processing, IEEE Transactions on  (Volume:52 ,  Issue: 6 )