Design of UAV-embedded microphone array system for sound source localization in outdoor environments

Kotaro Hoshiba; Kai Washizaki; Mizuho Wakabayashi; Takahiro Ishiki; Makoto Kumon; Yoshiaki Bando; Daniel Gabriel; Kazuhiro Nakadai; Hiroshi G. Okuno

doi:10.3390/s17112535

Design of UAV-embedded microphone array system for sound source localization in outdoor environments

Kotaro Hoshiba^*, Kai Washizaki, Mizuho Wakabayashi, Takahiro Ishiki, Makoto Kumon, Yoshiaki Bando, Daniel Gabriel, Kazuhiro Nakadai, Hiroshi G. Okuno

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

84 Citations (Scopus)

Abstract

In search and rescue activities, unmanned aerial vehicles (UAV) should exploit sound information to compensate for poor visual information. This paper describes the design and implementation of a UAV-embedded microphone array system for sound source localization in outdoor environments. Four critical development problems included water-resistance of the microphone array, efficiency in assembling, reliability of wireless communication, and sufficiency of visualization tools for operators. To solve these problems, we developed a spherical microphone array system (SMAS) consisting of a microphone array, a stable wireless network communication system, and intuitive visualization tools. The performance of SMAS was evaluated with simulated data and a demonstration in the field. Results confirmed that the SMAS provides highly accurate localization, water resistance, prompt assembly, stable wireless communication, and intuitive information for observers and operators.

Original language	English
Article number	2535
Journal	Sensors (Switzerland)
Volume	17
Issue number	11
DOIs	https://doi.org/10.3390/s17112535
Publication status	Published - 2017 Nov 3

Keywords

Multiple signal classification
Outdoorenvironment measurement
Real-time measurement
Robot audition
Sound source localization
Unmanned aerial vehicle

ASJC Scopus subject areas

Analytical Chemistry
Atomic and Molecular Physics, and Optics
Biochemistry
Instrumentation
Electrical and Electronic Engineering

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10.3390/s17112535

Cite this

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abstract = "In search and rescue activities, unmanned aerial vehicles (UAV) should exploit sound information to compensate for poor visual information. This paper describes the design and implementation of a UAV-embedded microphone array system for sound source localization in outdoor environments. Four critical development problems included water-resistance of the microphone array, efficiency in assembling, reliability of wireless communication, and sufficiency of visualization tools for operators. To solve these problems, we developed a spherical microphone array system (SMAS) consisting of a microphone array, a stable wireless network communication system, and intuitive visualization tools. The performance of SMAS was evaluated with simulated data and a demonstration in the field. Results confirmed that the SMAS provides highly accurate localization, water resistance, prompt assembly, stable wireless communication, and intuitive information for observers and operators.",

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AU - Washizaki, Kai

AU - Wakabayashi, Mizuho

AU - Ishiki, Takahiro

AU - Kumon, Makoto

AU - Bando, Yoshiaki

AU - Gabriel, Daniel

AU - Nakadai, Kazuhiro

AU - Okuno, Hiroshi G.

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N2 - In search and rescue activities, unmanned aerial vehicles (UAV) should exploit sound information to compensate for poor visual information. This paper describes the design and implementation of a UAV-embedded microphone array system for sound source localization in outdoor environments. Four critical development problems included water-resistance of the microphone array, efficiency in assembling, reliability of wireless communication, and sufficiency of visualization tools for operators. To solve these problems, we developed a spherical microphone array system (SMAS) consisting of a microphone array, a stable wireless network communication system, and intuitive visualization tools. The performance of SMAS was evaluated with simulated data and a demonstration in the field. Results confirmed that the SMAS provides highly accurate localization, water resistance, prompt assembly, stable wireless communication, and intuitive information for observers and operators.

AB - In search and rescue activities, unmanned aerial vehicles (UAV) should exploit sound information to compensate for poor visual information. This paper describes the design and implementation of a UAV-embedded microphone array system for sound source localization in outdoor environments. Four critical development problems included water-resistance of the microphone array, efficiency in assembling, reliability of wireless communication, and sufficiency of visualization tools for operators. To solve these problems, we developed a spherical microphone array system (SMAS) consisting of a microphone array, a stable wireless network communication system, and intuitive visualization tools. The performance of SMAS was evaluated with simulated data and a demonstration in the field. Results confirmed that the SMAS provides highly accurate localization, water resistance, prompt assembly, stable wireless communication, and intuitive information for observers and operators.

KW - Multiple signal classification

KW - Outdoorenvironment measurement

KW - Real-time measurement

KW - Robot audition

KW - Sound source localization

KW - Unmanned aerial vehicle

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Design of UAV-embedded microphone array system for sound source localization in outdoor environments

Abstract

Keywords

ASJC Scopus subject areas

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