Block transform

Wavelet packet bases are designed by dividing the frequency axis in intervals of varying sizes. These bases are particularly well adapted to decomposing signals that have different behavior in different frequency intervals. If $f$ has properties that vary in time, it is then more appropriate to decompose $f$ in a block basis that segments the time axis in intervals with sizes that are adapted to the signal structures.

单词	Block transform
释义	Block transform 英语百科 Block transform Wavelet packet bases are designed by dividing the frequency axis in intervals of varying sizes. These bases are particularly well adapted to decomposing signals that have different behavior in different frequency intervals. If $f$ has properties that vary in time, it is then more appropriate to decompose $f$ in a block basis that segments the time axis in intervals with sizes that are adapted to the signal structures.
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