Reference : Oversampled DFT-Modulated Biorthogonal Filter Banks: Perfect Reconstruction Designs a...
Scientific journals : Article
Engineering, computing & technology : Electrical & electronics engineering
Security, Reliability and Trust
http://hdl.handle.net/10993/41408
Oversampled DFT-Modulated Biorthogonal Filter Banks: Perfect Reconstruction Designs and Multiplierless Approximations
English
Alves Martins, Wallace mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Shankar, Bhavani mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
Ottersten, Björn mailto [University of Luxembourg > Interdisciplinary Centre for Security, Reliability and Trust (SNT) > >]
In press
IEEE Transactions on Circuits and Systems. II, Express Briefs
Institute of Electrical and Electronics Engineers (IEEE)
Yes (verified by ORBilu)
International
1549-7747
1558-3791
Piscataway
NJ
[en] Biorthogonal uniform filter banks (FBs) ; DFT-modulated FBs ; oversampling ; perfect reconstruction ; multiplierless filters ; disciplined convex programming
[en] We propose a novel methodology for designing oversampled discrete Fourier transform-modulated uniform filter banks. The analysis prototype is designed as a Nyquist filter, whereas the synthesis prototype is designed to guarantee perfect reconstruction (PR) considering oversampling. The resulting optimization problem fits into the disciplined convex programming framework, as long as some convex objective function is employed, as the minimization of either the stop-band energy or the maximum deviation from a desired response. The methodology also accounts for near-PR multiplierless approximations of the prototype analysis and synthesis filters, whose coefficients are obtained in the sum-of-power-of-two (SOPOT) space. The quantized coefficients are computed using successive approximation of vectors, which is able to yield filters with a reduced number of SOPOT coefficients in a computationally efficient manner. The proposed methodology is especially appealing for supporting actual hardware deployments, such as modern digital transparent processors to be used in next-generation satellite payloads.
Interdisciplinary Centre for Security, Reliability and Trust (SnT) > SIGCOM
Fonds National de la Recherche - FnR
Researchers ; Professionals ; Students ; General public
http://hdl.handle.net/10993/41408
10.1109/TCSII.2019.2962462
Authors' preprint version accepted for publication in IEEE Transactions on Circuits and Systems -- II: Express Briefs.\copyright2019 IEEE
FnR ; FNR11504382 > Bjorn Ottersten > PROSAT > On-board processing techniques for high throughput satellites > 01/01/2017 > 31/12/2019 > 2016

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