Air-coupled sonar systems inspired by bat echolocation

Air-coupled sonar systems inspired by bat echolocation

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This chapter is a review of work on biomimetic sonar systems developed in the last 15 years which are inspired by the bat echolocation process. Inspiration from bat biosonar is not intended as a bare transfer of features from the bat biosonar into an engineering sonar system. The various contributions considered in this chapter aim at developing one specific technology or localisation method using cues from the bat biosonar. In some cases, for example, the reproduction of one or more functionalities of the bat echolocation process is targeted to understand the functionalities themselves by implementing them into mathematical formulations or attempting the same tasks through empirical investigation.

Chapter Contents:

  • 4.1 Introduction
  • 4.2 What is a sonar system?
  • 4.3 Bioinspired (biomimetic) design of sonar systems: emitters and receivers
  • 4.3.1 Biomimetic emitters
  • 4.3.2 Biomimetic receivers
  • 4.4 Bat-inspired sonar systems and localisation methods
  • 4.4.1 Bat-inspired signal processing (cochlea models, discrimination of closely spaced objects and estimation of time delays using chirps, bat-inspired waveforms, target identification)
  • 4.5 Conclusions
  • References

Inspec keywords: mechanoception; sonar; bioacoustics

Other keywords: air-coupled sonar systems; bat echolocation process; biomimetic sonar systems; mathematical formulations; localisation method

Subjects: Sonar and acoustic radar

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