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Accession number;99A0938094
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| Title;Analysis of Dynamical Behaviour of 2-D Adaptive Digital Filters. |
| Author;
SHADAYDEH M
(Tohoku Univ.)
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Journal Title;Record of Electrical and Communication Engineering Conversazione, Tohoku University
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Journal Code:F0511A
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ISSN:0385-7719
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VOL.68;NO.1;PAGE.111-113(1999)
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| Figure&Table&Reference;FIG.1, REF.8 |
| Pub. Country;Japan |
| Language;English |
| Abstract;This papers contains three contributions to the area of 2-D adaptive filtering. The first one is a bias removal algorithm for 2-D equation error cascade IIR adaptive filters. The key idea of the proposed algorithm is to use a scaled value of the output error of each of the cascaled sections as an estimate for the measurement noise embedded in the signal part of the coefficient-update procedure of that section. The second contribution concerns the convergence analysis of a 2-D LMS algorithm in which the filter's weights are updated along both vetical an horizontal directions according to 2-D doubly-indexed dynamical systems. We address the mathematical problems encountered in this analysis and then propose a method for solving them. The third contribution is the development and convergence analysis of the block-wise processing version of the 2-D doubly-indexed LMS. In addition to improving the tracking ability in non-stationary environments, the 2-D doubly-indexed block LMS(2DDI-BLMS) is shown to be very suitable for paralle processing. (author abst.) |
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