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Fixed-point analysis of adaptive filters based on the EDS algorithm

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3 Author(s)
Zhongkai Zhang ; Supertel Technol. Inc., Bellevue, WA ; Bose, T. ; Radenkovic, M.S.

When adaptive altering algorithms are implemented in a finite wordlength processor, quantization effects are inevitable. In this paper, the Euclidean direction search (EDS) altering algorithm is analyzed for quantization effects. A mathematical analysis is performed for both transient and steady state behavior of the algorithm. A new energy conservation identity and an expression for the steady state error are obtained for the quantized system. Computer simulations are given to support the theoretical results.

Published in:

Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on

Date of Conference:

18-21 May 2008