Results 51 to 60 of about 8,492 (192)

A Multi-Pulse Cross Ambiguity Function for the Wideband TDOA and FDOA to Locate an Emitter Passively

Remote Sensing, 2022
The time difference of arrival (TDOA) and frequency difference of arrival (FDOA) between two receivers are widely used to locate an emitter. Algorithms based on cross ambiguity functions can simultaneously estimate the TDOA and FDOA accurately.
Yuqi Wang, Guang-Cai Sun, Yong Wang, Jun Yang, Zijing Zhang, Mengdao Xing   +5 more
doaj   +1 more source

Advances in vital‐sign prediction and early‐warning models for underground coal mine workers integrating environmental factors

Deep Underground Science and Engineering, EarlyView.
This review synthesizes advances in predicting miners' vital signs by integrating environmental monitoring (dust, temperature, and gas) with physiological data. It highlights multi‐source data fusion techniques and early‐warning models for enhanced occupational safety in underground coal mines.
Junji Zhu, Dawei Cui, Yingjie Liu, Yuntao Liang, Yue Zhang   +4 more
wiley   +1 more source

UAVs-assisted passive source localization using robust TDOA ranging for search and rescue

ICT Express, 2023
Estimating the location of a target in search-and-rescue operations is quite challenging when the target is not responding. Therefore, in this paper, we investigate the passive target localization problem using mobile unmanned aerial vehicles (UAVs ...
Ruhul Amin Khalil, Nasir Saeed, Muhannad Almutiry   +2 more
doaj   +1 more source

Cross Recurrence Plot Analysis Based Method For TDOA Estimation Of Underwater Acoustic Signals

, 2015
International audience—In this paper, we propose to use cross recurrence plot analysis (CRPA) to estimate the time-difference of arrival (TDOA) of underwater acoustic signals arriving on an array of hydrophones.
Gervaise, Cedric, Le Bot, Olivier, Mars, Jerome,, Simard, Yvan   +3 more
core   +2 more sources

Prioritising research on endocrine disruption in the marine environment: a global perspective

Biological Reviews, Volume 101, Issue 2, Page 848-868, April 2026.
ABSTRACT A healthy ocean is a crucial life support system that regulates the global climate, is a source of oxygen and supports major economic activities. A vast and understudied biodiversity from micro‐ to macro‐organisms is integral to ocean health.
Patricia I. S. Pinto, Angelica Miglioli, Carlie A. LaLone, Lisa Baumann, Alice Baynes, Mélanie Blanc‐Legendre, Ibon Cancio, Xavier Cousin, ZhiChao Dang, Rémi Dumollard, Alex T. Ford, Christopher Green, Taisen Iguchi, Philippa Kearney, Thomas Knigge, Christophe Minier, Tiphaine Monsinjon, Marta S. Monteiro, Joachim Sturve, Haruna Watanabe, Hiroshi Yamamoto, Gerald Ankley, Deborah M. Power, Ioanna Katsiadaki   +23 more
wiley   +1 more source

Near‐Field Acoustic Imaging Using Fiber‐Optic Distributed Acoustic Sensing and Beamforming Techniques

Advanced Science, Volume 13, Issue 6, 30 January 2026.
This work introduces a beamforming‐based method to generate acoustic images from fiber‐optic distributed acoustic sensing (DAS) data. By performing 2D scanning around the sensing fiber, the approach enables near‐field imaging and localization of acoustic sources, even in regions distant from the fiber. A data‐driven DAS channel selection improves image
Marcelo A. Soto, Diego Badillo‐San‐Juan   +1 more
wiley   +1 more source

Multi-TDOA Location Algorithm for Three Satellites TDOA Passive Location System

Leida xuebao, 2012
Location precision of radiant source is the primary performance of passive location system, and how to improve location precision is an important problem which always attracts attention.
Ren Wen-juan, Hu Dong-hui, Ding Chi-biao
doaj   +1 more source

TranQuiL: Long Range Detection and Localization of Interference in Radio Quiet Zones

Radio Science, Volume 61, Issue 1, January 2026.
Abstract Radio Quiet Zones (RQZs) have been established to prevent radio sources from causing harmful interference to sensitive radio telescopes, which study extremely faint cosmic radio waves. Even with strict regulations, such interference is growing due to the widespread use of consumer electronics, emitting in many different frequency bands ...
Atul Bansal, Mohamed Ibrahim, Kuang Yuan, Yiwen Song, Bob Iannucci, Swarun Kumar   +5 more
wiley   +1 more source

Beamforming Design for Joint Localization and Data Transmission in Distributed Antenna System

, 2014
A distributed antenna system is studied whose goal is to provide data communication and positioning functionalities to Mobile Stations (MSs). Each MS receives data from a number of Base Stations (BSs), and uses the received signal not only to extract the
Haimovich, Alexander, Jeong, Seongah, Kang, Joonhyuk, Simeone, Osvaldo   +3 more
core   +1 more source

A General Bayesian Framework for Ellipse-based and Hyperbola-based Damage Localisation in Anisotropic Composite Plates [PDF]

, 2015
This paper focuses on Bayesian Lamb wave-based damage localization in structural health monitoring of anisotropic composite materials. A Bayesian framework is applied to take account for uncertainties from experimental time-of-flight measurements and ...
FENDZI, Claude, GUSKOV, Mikhail, MECHBAL, Nazih, REBILLAT, Marc   +3 more
core   +3 more sources