On the forward-backward spatial APES

Authors:
Andreas Jakobsson;Petre Stoica
Affiliations:
Department of Electrical Engineering, Karlstad University, Karlstad, Sweden;Division of Systems and Control, Uppsala University, Uppsala, Sweden
Venue:
Signal Processing
Year:
2006

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Abstract

In this fast communication, we examine non-parametric data-adaptive spatial spectrum estimation using an array of sensors. We derive a forward-backward (FB) version of the recent spatial APES (SAPES) beamformer, and show that the SAPES algorithm is robust to the case of pairwise coherent sources. Numerical simulations indicate that the proposed FB version of SAPES offers higher resolution than the forward-only SAPES algorithm.