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Listening with Light: Distributed Acoustic Sensing for Event Detection, Characterization, and Classification
Listening with Light: Distributed Acoustic Sensing for Event Detection, Characterization, and Classification
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20260202104842
- ISBN
- 9798297600898
- DDC
- 620
- 저자명
- Saw, Jaewon.
- 서명/저자
- Listening with Light: Distributed Acoustic Sensing for Event Detection, Characterization, and Classification
- 발행사항
- [Sl] : University of California, Berkeley, 2025
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2025
- 형태사항
- 161 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 87-04, Section: B.
- 주기사항
- Advisor: Soga, Kenichi.
- 학위논문주기
- Thesis (Ph.D.)--University of California, Berkeley, 2025.
- 초록/해제
- 요약Distributed Acoustic Sensing (DAS) transforms optical fibers into dense arrays capable of detecting small strain changes caused by vibrations in the surrounding medium. With each fiber segment functioning as a virtual sensor, DAS generates rich spatiotemporal data, with meter-scale spatial resolution, kilometer-scale sensing distance, and kilohertz-range temporal sampling. This capability opens new possibilities for detecting signals ranging from earthquakes to whale calls and footsteps, and continues to expand into new application domains.Effectively applying DAS requires careful attention to the contextual factors that shape signal clarity, reliability, and interpretability: how the fiber is deployed, the surrounding environment, and the characteristics of the DAS system. Mechanical coupling to the surrounding material, subtle variations in fiber tension or geometry, ambient noise conditions, and the configuration of data acquisition parameters can all influence signal amplitude, polarization, and noise characteristics. As a result, the same physical event may manifest differently in DAS recordings across deployments, making DAS data variable and context-sensitive.This dissertation focuses on understanding signal variability, ensuring data quality, and applying rigorous modeling to develop workflows that remain robust, adaptive, and reproducible. Three case studies illustrate this approach: detecting humpback whale vocalizations in Monterey Bay, monitoring roadway activity across different fiber deployments, and characterizing signals from hydraulic fracturing. Each highlights domain-specific challenges in event detection, characterization, and classification under real-world constraints such as environmental noise, infrastructure heterogeneity, and labeling uncertainty. This document provides grounded, experience-based guidance to help researchers more effectively leverage DAS's unique capabilities while working with its numerous complexities.
- 일반주제명
- Engineering
- 일반주제명
- Computer engineering
- 일반주제명
- Acoustics
- 일반주제명
- Optics
- 일반주제명
- Hydraulic engineering
- 기타저자
- University of California, Berkeley Civil Engineering
- 기본자료저록
- Dissertations Abstracts International. 87-04B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520260202104842
■006m o d
■007cr#unu||||||||
■020 ▼a9798297600898
■035 ▼a(MiAaPQ)AAI32173079
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a620
■1001 ▼aSaw, Jaewon.
■24510▼aListening with Light: Distributed Acoustic Sensing for Event Detection, Characterization, and Classification
■260 ▼a[Sl]▼bUniversity of California, Berkeley▼c2025
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2025
■300 ▼a161 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 87-04, Section: B.
■500 ▼aAdvisor: Soga, Kenichi.
■5021 ▼aThesis (Ph.D.)--University of California, Berkeley, 2025.
■520 ▼aDistributed Acoustic Sensing (DAS) transforms optical fibers into dense arrays capable of detecting small strain changes caused by vibrations in the surrounding medium. With each fiber segment functioning as a virtual sensor, DAS generates rich spatiotemporal data, with meter-scale spatial resolution, kilometer-scale sensing distance, and kilohertz-range temporal sampling. This capability opens new possibilities for detecting signals ranging from earthquakes to whale calls and footsteps, and continues to expand into new application domains.Effectively applying DAS requires careful attention to the contextual factors that shape signal clarity, reliability, and interpretability: how the fiber is deployed, the surrounding environment, and the characteristics of the DAS system. Mechanical coupling to the surrounding material, subtle variations in fiber tension or geometry, ambient noise conditions, and the configuration of data acquisition parameters can all influence signal amplitude, polarization, and noise characteristics. As a result, the same physical event may manifest differently in DAS recordings across deployments, making DAS data variable and context-sensitive.This dissertation focuses on understanding signal variability, ensuring data quality, and applying rigorous modeling to develop workflows that remain robust, adaptive, and reproducible. Three case studies illustrate this approach: detecting humpback whale vocalizations in Monterey Bay, monitoring roadway activity across different fiber deployments, and characterizing signals from hydraulic fracturing. Each highlights domain-specific challenges in event detection, characterization, and classification under real-world constraints such as environmental noise, infrastructure heterogeneity, and labeling uncertainty. This document provides grounded, experience-based guidance to help researchers more effectively leverage DAS's unique capabilities while working with its numerous complexities.
■590 ▼aSchool code: 0028.
■650 4▼aEngineering
■650 4▼aComputer engineering
■650 4▼aAcoustics
■650 4▼aOptics
■650 4▼aHydraulic engineering
■653 ▼aDistributed Acoustic Sensing
■653 ▼aHydraulic fracturing
■653 ▼aMarine bioacoustics
■653 ▼aTraffic monitoring
■653 ▼aVeridical Data Science
■690 ▼a0537
■690 ▼a0752
■690 ▼a0464
■690 ▼a0218
■690 ▼a0986
■71020▼aUniversity of California, Berkeley▼bCivil Engineering.
■7730 ▼tDissertations Abstracts International▼g87-04B.
■790 ▼a0028
■791 ▼aPh.D.
■792 ▼a2025
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17359152▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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