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Signal Processing and Design Related to Bat Sonar Systems

  • Bernard Escudié
Part of the NATO Advanced Study Institutes Series book series (volume 28)

Abstract

Bat sonar signals cannot be correctly described if the information processor (or receiver) which extracts useful information from the incoming echo added to noise is not taken into account. Since the Frascati meeting, many investigators have assumed that the bat has a coherent receiver, or a matched filter, or a correlator (Mermoz, 1967; Cahlander, 1967; Altes, 1971; Escudié and Hellion, 1973). Some results have suggested that the bat’s receiver is coherent and very near the ideal receiver (Van Trees, 1968). Simmons (1971) and Simmons and Vernon (1971) measured range discrimination ability in bats. Range resolution can be defined using the performances of bats to discriminate between two targets very close to each other.

Keywords

Matched Filter Range Estimation Prolate Spheroid Sonar System Wideband Signal 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1980

Authors and Affiliations

  • Bernard Escudié
    • 1
  1. 1.Signal Processing LaboratoryInstitut de Chimie et Physique Industrielles de LyonLyon Cedex 1France

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