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Title: Sub-Band Equalization of Modulated Wideband Converter for Improved Dynamic Range Performance
Authors: Korucu, Ali Buğra
Alp, Yaşar Kemal
Gök, Gökhan
Arıkan, Orhan
Keywords: MWC
compressive sensing
sub-Nyquist sampling
band equalization FIR filter
Issue Date: 2017
Publisher: IEEE
Source: 25th Signal Processing and Communications Applications Conference (SIU) -- MAY 15-18, 2017 -- Antalya, TURKEY
Series/Report no.: Signal Processing and Communications Applications Conference
Abstract: In this work, we propose a new method to improve the dynamic range performance of the Modulated Wideband Converter (MWC), which is multi-channel sampling system for digitizing wideband sparse signals below the Nyquist limit without loss of information by using compressive sensing techniques. MWC achieves high dynamic range assuming that subband frequency responses of the system are identical. However, in hardware implementations of MWC, the resulting sub-band frequency responses are not identical and dynamic range performance of the system drops significantly which makes it unusable in practical applications. Proposed method iteratively designs FIR filters for equalizing frequency responses of the all sub-bands. Obtained results from the extensive computer simulations of the MWC system show that proposed method improves the dynamic range performance of the MWC system significantly.
ISBN: 978-1-5090-6494-6
ISSN: 2165-0608
Appears in Collections:Elektrik ve Elektronik Mühendisliği Bölümü / Department of Electrical & Electronics Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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