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An Array Recursive Least-Squares Algorithm With Generic Nonfading Regularization Matrix

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3 Author(s)
Manolis C. Tsakiris ; Dept. of Electronic Systems, Escola Politecnica, University of Sao Paulo, Brazil ; Cassio G. Lopes ; Vítor H. Nascimento

We present a novel array RLS algorithm with forgetting factor that circumvents the problem of fading regularization, inherent to the standard exponentially-weighted RLS, by allowing for time-varying regularization matrices with generic structure. Simulations in finite precision show the algorithm's superiority as compared to alternative algorithms in the context of adaptive beamforming.

Published in:

IEEE Signal Processing Letters  (Volume:17 ,  Issue: 12 )