Barankin bounds for source localization in an uncertain ocean environment

  title={Barankin bounds for source localization in an uncertain ocean environment},
  author={Joseph Tabrikian and Jeffrey L. Krolik},
  journal={IEEE Trans. Signal Processing},
Ambiguity surfaces for underwater acoustic matched-field processing are prone to having high secondary peaks. This leads to anomalous source localization estimates below a threshold signal-to-noise ratio (SNR) at which the performance rapidly departs from that predicted by the Cramér–Rao lower bound (CRLB). In this paper, Barankin bounds are used to predict the threshold SNR under two different models including known or uncertain shallow-water environments and monochromatic or random narrowband… CONTINUE READING
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