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Source Localization Based on Independent Doublet Array

독립적인 센서쌍 배열에 기반한 음원 위치추정 기법

  • Choi, Young Doo (Development of Electrical Engineering, Kyungpook National University) ;
  • Lee, Ho Jin (Development of Electrical Engineering, Kyungpook National University) ;
  • Yoon, Kyung Sik (Development of Electrical Engineering, Kyungpook National University) ;
  • Lee, Kyun Kyung (Development of Speech Therapy, Gimcheon University)
  • 최영두 (경북대학교 전자공학부) ;
  • 이호진 (경북대학교 전자공학부) ;
  • 윤경식 (경북대학교 전자공학부) ;
  • 이균경 (김천대학교 언어치료학과)
  • Received : 2014.07.07
  • Accepted : 2014.09.26
  • Published : 2014.10.25

Abstract

A single near-field sounde source bearing and ranging method based on a independent doublet array is proposed. In the common case of bearing estimation method, unform linear array or uniform circular array are used. It is constrained retaining aperture because of array structure to estimate the distance of the sound source. Recent using independent doublet array sound source's bearing and distance esmtimation method is proposed by wide aperture. It is limited to the case doublets are located on a straight line. In this paper, we generalize the case and estimate the localization of a sound source in the various array structure. The proposed algorithm was verified performance through simulation.

본 논문에서는 독립적인 센서쌍 배열(Doublet Array)을 이용하여 근거리 단일 음원의 방위와 거리를 추정하는 기법을 제안한다. 일반적인 방위각 추정 기법의 경우 주로 선형 배열 (Uniform Linear Array) 혹은 환영 배열 (Uniform Ciucular Array) 등을 이용하나 배열 구조상 근거리 음원의 거리를 추정하기 위한 개구간(Aperture)을 확보하는데 제약이 있다. 최근 독립적인 센서쌍 배열을 이용하여 넓은 개구간으로 근거리 단일 음원의 방위와 거리를 추정하는 기법이 제안되었으나 센서쌍이 직선상에 위치하는 경우로 제한되어 있다. 본 논문에서는 이를 일반화 하여 다양한 배열 구조에서도 근거리 음원의 위치를 추정하고자 한다. 제안된 알고리즘은 시뮬레이션을 통해 성능을 검증하였다.

Keywords

References

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