Title
Efficient Implementation Of 2x Oversampled Exponentially Modulated Filter Banks
Abstract
This paper studies 2 x oversampled exponentially modulated filter hanks because they can be a useful solution for various communications signal processing problems. At first, the perfect reconstruction (PR) property of this kind of 2M-channel complex modulated filter bank is proven by using the results of M-channel PR cosine-/sine-modulated filter banks (CMFBs/SMFBs). Then, two efficient implementation structures are developed. The computational complexities of CMFB/SMFB-based and discrete Fourier transform (DFT)-based realizations are practically the same when comparing the required number of multiplications and additions. However, the DFT-based structures can be further simplified by using an intuitive spectral interpretation. This results in the modified filter bank part that requires less arithmetic operations than the original one.
Year
DOI
Venue
2006
10.1109/TCSII.2006.882351
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
Keywords
Field
DocType
efficient implementation, modulated filter bank, perfect reconstruction (PR), 2x oversampled filter bank
Signal processing,Control theory,Filter bank,Electronic engineering,Discrete Fourier transform,Spectral analysis,Mathematics,Signal reconstruction,Filter design,Computational complexity theory,Exponential growth
Journal
Volume
Issue
ISSN
53
10
1549-7747
Citations 
PageRank 
References 
13
1.05
9
Authors
3
Name
Order
Citations
PageRank
Ari Viholainen114512.23
Juuso Alhava2638.31
markku renfors330057.60