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Identifying a gas source in turbulent environments presents a significant challenge for critical applications such as environmental monitoring and emergency response. This issue is addressed through an approach that combines distributed IoT…

The gravitational-wave detector is a complex and sensitive collection of advanced instruments that are impacted not only by mechanical/electronics systems but also by the surrounding environment. Hence, it is of great importance to classify…

天体物理仪器与方法 · 物理学 2022-09-07 Piljong Jung , Sang Hoon Oh , Young-Min Kim , Edwin J. Son , Takaaki Yokozawa , Tatsuki Washimi , John J. Oh

Optical fibers have long been employed as sensors in a wide range of commercial systems. Distributed Acoustic Sensing (DAS) extends this concept by enabling the detection and localization of acoustic sources along the fiber, using…

信号处理 · 电气工程与系统科学 2025-09-25 Knut H. Grythe , Jan Erik Håkegård

Most studies that consider the problem of estimating the location of a point source in wireless sensor networks assume that the source location is estimated by a set of spatially distributed sensors, whose locations are fixed. Motivated by…

信息论 · 计算机科学 2016-11-18 Mohammad Fanaei , Matthew C. Valenti , Natalia A. Schmid

Anderson localization marks a halt of diffusive wave propagation in disordered systems. Despite extensive studies over the past 40 years, Anderson localization of light in three dimensions has remained elusive, leading to the question of…

We experimentally study a homodyne detection technique for the characterization of a quadrature squeezed field where the correlated bands, here created by four-wave mixing in a hot atomic vapor, are separated by a large frequency gap of…

量子物理 · 物理学 2016-12-21 Christopher S. Embrey , Joshua Hordell , Plamen G. Petrov , Vincent Boyer

Current axion detection limits neglect the relevance of the relative velocity between the axion field and the detectors. However, this aspect can lead to a daily modulation of the detected axion signal. In this work, we calculate the…

We consider position measurements using the cross-correlated output of two tunnel junction position detectors. Using a fully quantum treatment, we calculate the equation of motion for the density matrix of the coupled…

介观与纳米尺度物理 · 物理学 2007-11-27 C. B. Doiron , B. Trauzettel , C. Bruder

The thickness of the lubricating film plays a vital role in the operational efficiency and reliability of rolling bearings. Ultrasonic reflection techniques offer a promising non-invasive approach for in situ evaluation of lubricant…

仪器与探测器 · 物理学 2025-07-01 Pan Dou , Yayu Li , Suhaib Ardah , Tonghai Wu , Min Yu , Tom Reddyhoff , Yaguo Lei , Daniele Dini

An integrated and automated smart structures approach for structural health monitoring is presented, utilizing an array of piezoelectric transducers attached to or embedded within the structure for both actuation and sensing. The system…

声音 · 计算机科学 2015-05-13 Peter F. Lichtenwalner , Donald A. Sofge

We consider the following positioning problem where several base stations (BS) try to locate a user equipment (UE): The UE sends a positioning signal to several BS. Each BS performs Angle of Arrival (AoA) measurements on the received…

信息论 · 计算机科学 2023-08-17 Viet-Hoa Nguyen , Vincent Corlay , Nicolas Gresset , Cristina Ciochina

Detecting leaks in Water Distribution Networks (WDN) using sensors has become crucial towards an efficient management of water resources. The leak detection methods that use this data rely on the correctness of the acquired data. However,…

系统与控制 · 电气工程与系统科学 2020-07-21 Krishnan Srinivasarengan , Taha Boukhobza , Samir Aberkane , Vincent Laurain

Malfunctioning equipment, erroneous operating conditions or periodic load variations can cause periodic disturbances that would persist over time, creating an undesirable transfer of energy across the system -- an effect referred to as…

系统与控制 · 电气工程与系统科学 2024-03-26 Melvyn Tyloo , Marc Vuffray , Andrey Y. Lokhov

The present paper proposes a data-driven sensor selection method for a high-dimensional nondynamical system with strongly correlated measurement noise. The proposed method is based on proximal optimization and determines sensor locations by…

信号处理 · 电气工程与系统科学 2022-11-29 Takayuki Nagata , Keigo Yamada , Taku Nonomura , Kumi Nakai , Yuji Saito , Shunsuke Ono

This paper presents a Bayesian estimation method for the passive localization of an acoustic source in shallow water. Our probabilistic focalization approach estimates the time-varying source location by associating direction of arrival…

信号处理 · 电气工程与系统科学 2021-09-15 Florian Meyer , Kay L. Gemba

Source localization in a complex flow poses a significant challenge for multi-robot teams tasked with localizing the source of chemical leaks or tracking the dispersion of an oil spill. The flow dynamics can be time-varying and chaotic,…

机器人学 · 计算机科学 2025-09-18 Benjamin Shaffer , Victoria Edwards , Brooks Kinch , Nathaniel Trask , M. Ani Hsieh

The contamination impact and the migration of the contaminant into the surrounding environment due to the presence of a spilled oil pipeline will cause significant damage to the natural ecosystem. For this reason, it is decisive to develop…

流体动力学 · 物理学 2022-11-03 Alessandra Feo , Emanuele Scanferla , Fulvio Celico

Underground pipeline leaks and infiltrations pose significant threats to water security and environmental safety. Traditional manual inspection methods provide limited coverage and delayed response, often missing critical anomalies. This…

计算工程、金融与科学 · 计算机科学 2025-11-21 Qiming Guo , Bishal Khatri , Wenbo Sun , Jinwen Tang , Hua Zhang , Wenlu Wang

The ALICE Collaboration is developing a novel vertexing detector to extend the heavy-flavour physics programme of the experiment during Run 4 by improving the pointing resolution of the tracking, particularly at low transverse momentum. It…

仪器与探测器 · 物理学 2024-08-05 Domenico Colella

Accurate localization for mobile nodes has been an important and fundamental problem in underwater acoustic sensor networks (UASNs). The detection information returned from a mobile node is meaningful only if its location is known. In this…

网络与互联网体系结构 · 计算机科学 2014-12-31 Zhihua Liu , Han Gao , Wuling Wang , Shuai Chang , Jiaxing Chen