A Simple Sparse Channel Estimator for Underwater Acoustic Channels

@article{Carbonelli2007ASS,
  title={A Simple Sparse Channel Estimator for Underwater Acoustic Channels},
  author={Cecilia Carbonelli and Urbashi Mitra},
  journal={OCEANS 2007},
  year={2007},
  pages={1-6}
}
Underwater acoustic channels exhibit very long delay spreads, but with limited multipath. To this end, channel estimation for sparse underwater acoustic channels is examined. Based on the on-off keying techniques developed in [1], a new iterative scheme for sparse channel estimation is provided. The method is of lower complexity than that of [1], exploiting features of underwater acoustic channels. The strategy iterates between zero-tap detection and structured channel estimation. The new… CONTINUE READING
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