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Efficient implementation of error-feedback LSL algorithm

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3 Author(s)
Miranda, M.D. ; Dept. of Electron. Eng., Sao Paulo Univ., Brazil ; Gerken, M. ; Da Silva, M.T.M.

An error feedback LSL algorithm is presented which has a reduced computational complexity and makes use of both a priori and a posteriori prediction errors. A simple numerical convention is proposed to assure numerical stability for poor persistent excitation. Simulation results illustrate that divisions can be implemented with reduced wordlength without leading to a significant decrease in the overall accuracy even in floating-point implementations. This fact allows the use of lookup tables for implementing divisions. Moreover, the proposed algorithm has an inherent parallelism that can be advantageously exploited for fast implementations

Published in:

Electronics Letters  (Volume:35 ,  Issue: 16 )