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    On a filter bank correction scheme for mitigating mismatch distortions in time-interleaved converter systems


    Soudan, Michael and Farrell, Ronan (2009) On a filter bank correction scheme for mitigating mismatch distortions in time-interleaved converter systems. In: 2009 European Conference on Circuit Theory and Design. IEEE, pp. 197-200. ISBN 9781424438969

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    Abstract

    This paper presents a multirate filterbank architecture that mitigates the distortion caused by non-ideal samplers in a time-interleaved system. Closed form fractional delay filters with finite impulse response (FIR) and infinite impulse response (IIR) type are employed to model the behaviour of the non-ideal converters. Based on a polyphase description of the system, the reconstruction filters are derived for the IIR case, which can be regarded as a generalization of the FIR design scheme. Furthermore, the achieved performance of filter banks for various fractional delay filters is compared. To investigate the numerical robustness, the impact of limited coefficient lengths on different figures-of-merit was explored. Finally, the reconstruction of a non-uniformly sequence was used as an example to verify the reconstruction scheme.

    Item Type: Book Section
    Additional Information: Research presented in this paper was funded by the Centre for Telecommunications Value-Chain Research (SFI 03/CE3/I405) by Science Foundation Ireland under the National Development Plan. The authors gratefully acknowledge this support.
    Keywords: analogue-digital conversion; delay filters; distortion; FIR filters; IIR filters; network synthesis; numerical stability;
    Academic Unit: Faculty of Science and Engineering > Electronic Engineering
    Item ID: 9665
    Identification Number: https://doi.org/10.1109/ECCTD.2009.5274951
    Depositing User: Dr. Ronan Farrell
    Date Deposited: 06 Jul 2018 14:43
    Publisher: IEEE
    Refereed: Yes
    Funders: Science Foundation Ireland (SFI)
    URI:

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