Abstract | ||
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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 |
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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 Viholainen | 1 | 145 | 12.23 |
Juuso Alhava | 2 | 63 | 8.31 |
markku renfors | 3 | 300 | 57.60 |