The paper presents a variable-structure version of a generalized notchfiltering (GANF) algorithm. Generalized notch filters are used for identification of quasi-periodically varying dynamic systems and can be considered an extension, to the system case, of classical adaptive notch filters. The proposed algorithm is a cascade of two GANF filters: a multiple-frequency "precise" filter bank, used for precise system tracking, and a single-frequency "scout" filter, used for detection and tracking of new frequency components. The algorithm isequipped with two adaptation mechanisms, which allow one to remove superfluous/redundant filters from the parallel filter bank, and to add new filters to the bank, respectively. It yields substantial performance improvement over the conventional (fixed-structure) GANF algorithms.
Authors
Additional information
- Category
- Publikacja monograficzna
- Type
- rozdział, artykuł w książce - dziele zbiorowym /podręczniku w języku o zasięgu międzynarodowym
- Language
- angielski
- Publication year
- 2008
