인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2015.10
- 수록면
- 150 - 154 (5page)
이용수
초록· 키워드
TDOA position estimate from acoustic measurement of artillery shell impact is studied in order to develop a targeting evaluation system. Impact position is calculated from the intersections of hyperbolic estimates based on the least square Taylor series method. The mathematical process of Taylor series estimation is known to be robust. However, the concern lays with the accuracy because it is sensitive to the bias caused by the randomness of measurement situation. The measurement error typically occurs from the distortion of waveform, change of travelling path, and sensor position error. For outdoor measurement, a consideration should be made on the atmospheric condition such as temperature and wind which can possibly change the trajectories of rays of sound. It produces wrong propagation time events accordingly. Ray tracing and optimization techniques are introduced in this study to minimize the bias induced by the ray of sound. The experiments were carried out in the football field with a sport start gun as an impact source. The array of sensors are deployed around the source and a weather monitored is positioned with it to acquire environmental information. The comparison of experimental result and numerical simulation shows that the atmospheric correction improves the estimation accuracy.
#Time Difference of Arrival(도달지연시간, TDOA)
#Source Positioning(소음원 위치파악)
#Position Estimation Error(위치추정오차)
#Wind Effect(바람 영향)
#Ray Tracing(음선추적)
상세정보 수정요청해당 페이지 내 제목·저자·목차·페이지정보가 잘못된 경우 알려주세요!
목차
- ABSTRACT
- 1. 서론
- 2. TDOA를 이용한 위치추정 기법
- 3. 음선추적을 적용한 TDOA 정확도 보정
- 4. 시물레이션
- 5. 실험
- 6. 결론
- 참고문헌
참고문헌
참고문헌 신청최근 본 자료
UCI(KEPA) : I410-ECN-0101-2016-539-002016436
