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Convergence Properties of a CORDIC-Based Adaptive ARMA Lattice Filter
Shin'ichi SHIRAISHI Miki HASEYAMA Hideo KITAJIMA
Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Vol.E88-A
No.8
pp.2154-2164 Publication Date: 2005/08/01 Online ISSN:
DOI: 10.1093/ietfec/e88-a.8.2154 Print ISSN: 0916-8508 Type of Manuscript: PAPER Category: Digital Signal Processing Keyword: convergence properties, adaptive lattice filter, ARMA lattice filter, CORDIC,
Full Text: PDF(1MB)>>
Summary:
This paper presents a theoretical convergence analysis of a CORDIC-based adaptive ARMA lattice filter. In previous literatures, several investigation methods for adaptive lattice filters have been proposed; however, they are available only for AR-type filters. Therefore, we have developed a distinct technique that can reveal the convergence properties of the CORDIC ARMA lattice filter. The derived technique provides a quantitative convergence analysis, which facilitates an efficient hardware design for the filter. Moreover, our analysis technique can be applied to popular multiplier-based filters by slight modifications. Hence, the presented convergence analysis is significant as a leading attempt to investigate ARMA lattice filters.
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