Adapted Bases of Time-Frequency Local Cosines
We develop and analyze a best basis algorithm for orthonormal bases of local cosines which satisfy a uniform bound on their time-frequency concentration. All waveforms are obtained from three elementary window functions by shifts, rescaling, and modulation. For a discrete signal of length N, the com...
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| Veröffentlicht in: | Applied and computational harmonic analysis 2001-03, Vol.10 (2), p.139-162 |
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| container_title | Applied and computational harmonic analysis |
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| creator | Villemoes, Lars F |
| description | We develop and analyze a best basis algorithm for orthonormal bases of local cosines which satisfy a uniform bound on their time-frequency concentration. All waveforms are obtained from three elementary window functions by shifts, rescaling, and modulation. For a discrete signal of length
N, the complexity is of order
N(log
N)
2. |
| doi_str_mv | 10.1006/acha.2000.0335 |
| format | Article |
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N, the complexity is of order
N(log
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N, the complexity is of order
N(log
N)
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| ispartof | Applied and computational harmonic analysis, 2001-03, Vol.10 (2), p.139-162 |
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| language | eng |
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| source | Access via ScienceDirect (Elsevier); EZB-FREE-00999 freely available EZB journals |
| title | Adapted Bases of Time-Frequency Local Cosines |
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