All-fiber-optic acoustic sensor array for real-time sound source localization

Real-time sound source localization has been widely realized by the conventional microphone array for the present. In addition, fiber-optic microphones have many advantages over conventional microphones. In the present work, an all-fiber-optic acoustic array system with a wavelength-division multiplexing scheme is proposed, which has a high sensitivity and significant superiority in high-frequency signal detection and can be applied in harsh environments. The system also has the advantages of simple construction and low cost. Real-time sound source localization is realized through the system.