NDLI: Wideband, Bandpass, and Versatile Hybrid Filter Bank A/D Conversion for Software Radio

Content Provider	IEEE Xplore Digital Library
Author	Lelandais-Perrault, C. Petrescu, T. Poulton, D. Duhamel, P. Oksman, J.
Copyright Year	2004
Abstract	This paper deals with analog-to-digital (A/D) conversion for future software/cognitive radio systems. For these applications, A/D converters should convert wideband signals and offer high resolutions. In order to achieve this and to overcome technological limitations, the A/D conversion systems should be versatile, i.e., it should be possible to adapt the conversion characteristics (resolution and bandwidth) by software. This work studies and adapts hybrid filter banks (HFBs) in this context. First, HFBs, which can provide a large conversion bandwidth, are extended to bandpass sampling, thus minimizing the sampling frequency. Then, we provide efficient ways of improving the HFB resolution in a smaller frequency band, only by reprogramming the digital part. Moreover, this paper takes into account the main drawback of HFBs which is their very high sensitivity to analog imperfections. Simulation results are presented to demonstrate the performance of HFBs.
Sponsorship	IEEE Circuits and Systems Society
Starting Page	1772
Ending Page	1782
Page Count	11
File Size	806528
File Format	PDF
ISSN	15498328
Volume Number	56
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wideband Filter bank Software radio Cognitive radio Frequency conversion Receivers GSM Energy resolution Signal resolution Bandwidth wideband Analog-to-digital (A/D) conversion bandpass cognitive radio hybrid filter banks (HFBs) software radio versatility
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Hardware and Architecture

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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