Spectral efficiency of beamforming-based parameter estimation in the single source case

@article{Gazzah2011SpectralEO,
  title={Spectral efficiency of beamforming-based parameter estimation in the single source case},
  author={Houcem Gazzah and Jean-Pierre Delmas},
  journal={2011 IEEE Statistical Signal Processing Workshop (SSP)},
  year={2011},
  pages={153-156}
}
It is well known that beamforming and Capon spectral or direction estimators are biased and inefficient with respect to the Cramer-Rao bound (CRB). On the other hand, the MUSIC algorithm is known to be asymptotically unbiased and efficient, in the single zero-mean circular Gaussian source case only. In this latter case, we prove in this paper that for constant steering vector modulus, the beamforming and Capon spectral or direction estimators of possible several parameters per source are… CONTINUE READING
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