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Pseudolapped orthogonal transform
1989
The pseudo-LOT, a modified version of the lapped orthogonal transform (LOT), is introduced. It can be viewed as either a block transform with overlapping basis functions or a critically-sampled multirate filter bank with nearly perfect reconstruction. A fast algorithm for the pseudo-LOT, based on the discrete cosine transform, is presented.
Keywords:
- Constant Q transform
- Modified discrete cosine transform
- Lapped transform
- Discrete sine transform
- Discrete Fourier transform (general)
- Mathematical optimization
- Mathematics
- Discrete mathematics
- Two-sided Laplace transform
- Fast wavelet transform
- Discrete cosine transform
- Hartley transform
- Fractional Fourier transform
- Algorithm
- Electronic engineering
- Discrete Hartley transform
- Correction
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