Impact point estimation system of the rifle based on time difference of arrival method using microphone array

Jongseong Won; Kyusik Park

doi:10.7776/ASK.2018.37.4.206

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2018 Vol.37, Issue 4 Preview Page Next Page

Research Article

Impact point estimation system of the rifle based on time difference of arrival method using microphone array 마이크로폰 어레이를 이용한 도착 시간 차 기반 소총화기 탄착점 추정 시스템

31 July 2018. pp. 206-214

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Abstract

This paper proposes an impact point estimation algorithm of the rifle using microphone sensors. The proposed algorithm resolves the time synchronization problem by expanding the existing ToA (Time of Arrival) method to TDoA (Time Difference of Arrival) method and verifies the performance of the algorithm through the actual shooting experiments. By comparing analysis of the actual and the estimated impact points by the algorithm, it is confirmed that the proposed algorithm has excellent performance by estimating the impact point accurately within the tolerance range.

Keywords

Impact Point

LMS (Least Mean Square)

Shock Wave

TDoA (Time Difference of Arrival)

본 논문은 마이크로폰 음향 센서를 이용한 소총화기 탄착점 추정 알고리즘을 제안하였다. 제안된 알고리즘은 기존 신호 도착시간(Time of Arrival, ToA) 방식을 신호 도착 시간 차(Time Difference of Arrival, TDoA) 방식으로 확장 발전시켜 시간 동기화 문제를 해결하였고, 실제 사격 실험을 통해 알고리즘의 성능을 검증하였다. 실제 탄착점과 알고리즘으로 연산된 탄착점의 비교 분석을 통해 제안 시스템이 허용 오차 범위 내에서 정확히 탄착점을 추정하고 있어 우수한 성능을 보이고 있음을 확인하였다.

키워드

탄착점

최소 평균 제곱법(Least Mean Square, LMS)

탄환 충격파

도착 시간차(Time Difference of Arrival, TDoA)

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Information

Publisher :The Acoustical Society of Korea
Publisher(Ko) :한국음향학회
Journal Title :The Journal of the Acoustical Society of Korea
Journal Title(Ko) :한국음향학회지
Volume : 37
No :4
Pages :206-214
Received Date : 2018-04-10
Accepted Date : 2018-07-19
DOI :https://doi.org/10.7776/ASK.2018.37.4.206

The Journal of the Acoustical Society of KoreaISSN:1225-4428(Print) 2287-3775(Online)한국음향학회

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