Frequency band characteristics of tree-structured filter banks
Gerek, Ö. N.
Gürcan, M. N.
Çetin, A. E.
The Institution of Engineering and Technology
724 - 726
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A sub-band decomposition filter bank can be recursively used in a tree structure to divide the frequency domain into various subfrequency bands. The frequency bands of the sub-band signals have a counter intuitive order in such a decomposition. The authors show that the relationship between the frequency content and the index of a sub-band signal can be expressed by an extension of the Gray code.
KeywordsFrequency band characteristics
Tree-structured filter banks
Sub-band decomposition filter bank
Frequency domain division