Title :
The Design of Adaptive No-Uniform Filter Banks
Author :
Liu Weidong ; Zhang Shen
Author_Institution :
Sch. of Inf. & Electr. Eng., China Univ. of Min. & Technol., Xuzhou, China
Abstract :
This paper proposed an efficient filter bank structure for adaptive noise cancellation algorithm, which is non-uniform sub-band decomposition algorithm based on the reference signal . In order to consider the signal approximation reconstruction, the design has adopted a prototype filter additional pre-emphasis filter method, and adopt uniform sub-band decomposition algorithm to carry out the idea of non-uniform sub-band decomposition. The algorithm is simple and easy to achieve, at the same time, as a result of sub-band decomposition depends on the distribution of the noise characteristics, so certain sub-band does not require the use of filtering methods, which not only significantly reduce the computation ,but also improve the performance of adaptive filter convergence.
Keywords :
adaptive filters; interference suppression; signal reconstruction; adaptive filter convergence; adaptive no-uniform filter banks; adaptive noise cancellation algorithm; pre-emphasis filter method; signal approximation reconstruction; uniform sub-band decomposition algorithm; Adaptive filters; Algorithm design and analysis; Approximation algorithms; Distributed computing; Filter bank; Filtering algorithms; Noise cancellation; Noise reduction; Prototypes; Signal design;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5302593