Published January 22, 2007 | Version 5519

An Improved Preprocessing for Biosonar Target Classification

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An improved processing description to be employed in biosonar signal processing in a cochlea model is proposed and examined. It is compared to conventional models using a modified discrimination analysis and both are tested. Their performances are evaluated with echo data captured from natural targets (trees).Results indicate that the phase characteristics of low-pass filters employed in the echo processing have a significant effect on class separability for this data.

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References

  • R. F. Lyon, ''A computational model of filtering, detection, and compression in cochlea,'' in Proc. IEEE Intl. Conf. On Acoust.Speech,Signal Processing, pp. 1282-1285, Paris, France, May, 1982.
  • R.D. Patterson, and J. Holdsworth, ''A functional model of neural activity patterns and auditory images,'' William A. Ainsworth (ed.), vol.3, Advances in Speech, Hearing and Language Processing, JAI Press,London, 1996.
  • M. Slaney, ''An efficient implementation of the Patterson-Holdsworth auditory filterbank,'' Apple Computer Tech. Rep. 35, Apple Computer,1988.
  • R. Meddis, M. J. Hewitt, and T. M. Shackleton, ''Implementation details of a computation model of the inner-hair cell/auditory -nerve synapse,''J. Acoust. Soc. Am., vol. 87, no. 4, pp. 1813-1816, Oct. 1990.
  • S. B. Davis, and P. Mermelstein, ''Comparison of parametric representations for monosyllabic word recognition in continuous spoken sentences,'' IEEE Trans.Accoust. Speech and Signal Processing,vol. 28,no. 4, pp. 357-366, 1980.
  • R. F. Lyon, and C. Mead, ''An analog electronic cochlea,'' IEEE Trans.Accoust. Speech and Signal Processing,vol. 36, no. 7, pp. 1119-1134,July 1988.
  • E. Givelberg, and J. Brunn, ''A comprehensive three-dimensional model of the cochlea,'' J. Comp. Physics, vol. 191, no. 2, pp. 377-391, Nov.2003.
  • R. M├╝ller, ''A computational theory for the classification of natural biosonar targets based on a spike code,'' Network: Comput. Neural Syst., vol. 14, pp. 595-612, May 2003.
  • J. M. Kates, ''A time-domain digital cochlear model,'' IEEE Trans.Signal Proc., vol. 39, no. 12, pp. 2573-2591, Dec. 1991.[10] M. S. Srivastava, and E.M. Carter, Applied Multivariate Statistics,North Holland Amsterdam, 1983.