Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/99358
Title: Mixed-radix fast filter bank approach for the design of variable digital filters With simultaneously tunable bandedge and fractional delay
Authors: Yu, Ya Jun
Xu, Wei Jing
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Electronic systems::Signal processing
Issue Date: 2011
Source: Yu, Y. J., & Xu, W. J. (2012). Mixed-radix fast filter bank approach for the design of variable digital filters With simultaneously tunable bandedge and fractional delay. IEEE transactions on signal processing, 60(1), 100-111.
Series/Report no.: IEEE transactions on signal processing
Abstract: A popular technique to design variable fractional delay (VFD) filters or variable bandedge filters is the polynomial based finite impulse response (FIR) filters, where each filter coefficient is approximated as a polynomial of the variable parameter. However, if the filter is required to have both VFD and variable bandedge, the computational complexity becomes very high, because two-dimensional polynomials have to be used, provided that the same polynomial idea is followed. In this paper, a filter bank approach is proposed for the design of VFD filters. The basic idea of the approach is to split the full band signals into subbands and each subband is, respectively, shifted by a phase, which is determined by the required fractional delay. The overall fractional delay is achieved by combining all subbands. Using this technique, the variable bandedge could be incorporated into the VFD filter with trivial extra computations. Design examples show that the proposed technique achieves high performance with low computational complexity.
URI: https://hdl.handle.net/10356/99358
http://hdl.handle.net/10220/13521
http://hdl.handle.net/10220/13520
ISSN: 1053-587X
DOI: http://dx.doi.org/10.1109/TSP.2011.2170169
Rights: © 2011 IEEE
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles

Google ScholarTM

Check

Altmetric

Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.