Motivated by the objective of finding a reduced
complexity implementation of the EM (Estimate and
Maximize) algorithm, the authors move the concept
of altemating projection (AP),re ported in 1988 by I.
Ziskind and M.Wax, to a specific architecture for
array processing in communications. Direction of
Arrivals (DOA’s) are estimated by scanning the
scenario with a dedicated beamvector, proving that
low-resolution procedures with constraints, working
in parallel, may enhance the performance of high
resolution methods. Since no inverse is involved the
method is robust and copes with full coherent sources
(specular multipath) and fast updates. The procedure
is proved to be useful for adaptive beamforming in
either point-to-point or mobile communications.
Preserving the EM performance the array processing
architecture offers a wide range of possibilities in
updating and framing taking the best of hardware
CitationPérez, A.; Villarino, R.; Lagunas, M. The RCap: an architecture for robust beamforming and high resolution DOA tracking. A: WCC2000-ICSP2000 (World Computer Congress-Int.Conf. On Signal Processing). "WCC2000-ICSP2000 (World Computer Congress-Int.Conf. On Signal Processing)". Beijing: 2000, p. 606-613.
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