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Optica Publishing Group
  • Current Optics and Photonics
  • Vol. 1,
  • Issue 6,
  • pp. 573-578
  • (2017)

Position Estimation of Sound Source Using Three Optical Mach-Zehnder Acoustic Sensor Array

Open Access Open Access


Position estimation of a sound source based on time difference of arrival at an array of three acousto-optic sensors is introduced. Each sensor consists of a Mach-Zehnder interferometer including a sensing part in one arm that is a piece of fiber surrounded by membrane in order to enhance the acousto-optic effect. Estimation error of a recorded gunshot sound signal was evaluated with the theoretically calculated values for two different locations.

© 2017 Optical Society of Korea

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