Fly Ear Inspired Miniature Acoustic Sensors for Detection and Localization.

摘要

Inspired by the micro-scale ears of the fly Ormia, which show remarkable sound localization ability, the overall objective of this project is to achieve a further understanding of the mechanism the fly ear and use this understanding to develop Fly-Ear Inspired Miniature Acoustic Sensors for Target Detection and Localization. Through mechanics and optimization analysis, we have discovered an important biological conclusion: the fly ear can be viewed as a nature-designed optimal structure that is endowed with the dual optimality characteristic. A micro-scale fly-ear inspired directional microphone has been developed to fully capture the dual optimality characteristic of the fly ear. Furthermore, a localization strategy inspired by the fly s localization/lateralization scheme has been employed. It has also been found that not only the fly ear represents a nature designed optimal structure; the fly s localization scheme may also resemble an optimal control scheme. This work can form a basis to unravel the underlying science of fly-ear mechanisms and provide a framework for the development of bio-inspired localization, tracking, and navigation systems.