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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/6879
Title: An improved closed form design method for the cosine modulated filter banks using windowing technique
Authors: Kumar A.
Singh, Girish Kumar
Anand, Radhey Shyam
Published in: Applied Soft Computing Journal
Abstract: This paper presents an improved closed form method for designing cosine modulated filter banks with prescribed stopband attenuation and channel overlap. The proposed method is based on optimum passband frequency, which is calculated using empirical formulas instead of using time consuming single or multivariable optimization. Different window functions are employed to design the prototype filter with the novelty of exploiting spline functions in the transition region of the ideal filter. Several design examples are included to show the increased efficiency of the proposed method over other exiting methods in terms of computation time, amplitude distortion (eam) and aliasing distortion (ea). An application of the proposed method is considered in the area of subband coding of the ECG and speech signals. © 2010 Elsevier B.V. All rights reserved.
Citation: Applied Soft Computing Journal (2011), 11(3): 3209-3217
URI: https://doi.org/10.1016/j.asoc.2010.12.023
http://repository.iitr.ac.in/handle/123456789/6879
Issue Date: 2011
Keywords: Closed form
Filter banks
Multirate filter banks
QMF bank
Spline function
ISSN: 15684946
Author Scopus IDs: 57215268681
57193351909
56363331000
Author Affiliations: Kumar, A., Department of Electrical Engineering, Indian Institute of Technology Roorkee, Uttrakhand 247667, India
Singh, G.K., Department of Electrical Engineering, Indian Institute of Technology Roorkee, Uttrakhand 247667, India
Anand, R.S., Department of Electrical Engineering, Indian Institute of Technology Roorkee, Uttrakhand 247667, India
Corresponding Author: Kumar, A.; Department of Electrical Engineering, Indian Institute of Technology Roorkee, Uttrakhand 247667, India; email: anilkdee@gmail.com
Appears in Collections:Journal Publications [EE]

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