Results 61 to 70 of about 4,089 (198)

Cooperative positioning using angle of arrival and time of arrival [PDF]

, 2014
Localization has been one of the most highly researched topics in wireless communications in the past decade. Localization of wireless nodes can be achieved using a variety of techniques, in which range measurement and angle measurement are most commonly
Khan, MW, Salman, N, Naveed Salman, Kemp, AH, M. W. Khan, A. H. Kemp   +5 more
core   +1 more source

Key considerations for the use of satellite‐based remote sensing for lake and reservoir research and management

Ecosphere, Volume 17, Issue 7, July 2026.
Abstract Given the critical importance of freshwater for human well‐being and the myriad threats altering water quality and quantity, monitoring lakes and reservoirs is necessary to identify where, how, and why freshwater ecosystems are changing globally.
J. V. Trout‐Haney, J. A. Brentrup, K. L. Cottingham, K. C. Weathers, B. D. Cook, M. J. Ducey, C. Herrick, K. M. Johnson, M. W. Palace, B. G. Steele, M. C. Thompson, D. A. Lutz   +11 more
wiley   +1 more source

Ziv-Zakai bound on time-of-arrival estimation with statistical channel knowledge at the receiver

, 2009
Time-of-arrival (TOA) based localization plays an important role due to the possibility to exploit the fine delay resolution property when wideband signals are adopted.
M. Z. Win, Moe Z. Win, Dardari, Davide, Win, Moe Z., Davide Dardari   +4 more
core   +1 more source

Positive Aging‐Free Quantum Dot Light‐Emitting Diodes Enabled by Single‐Source Chloride‐Doped ZnMgO Electron Transport Layers

Small, Volume 22, Issue 37, 2 July 2026.
Single‐source chloride doping of ZnMgO electron‐transport layers (ETLs) intrinsically suppresses oxygen‐vacancy traps, eliminating storage‐driven positive aging in quantum dot light‐emitting diodes. Devices deliver day‐0 peak external quantum efficiency and longer operational lifetimes, while transport and interfacial photoluminescence remain time ...
Jaeyeop Lee, Yeyun Bae, Kyoungeun Lee, Woon Ho Jung, Hyeonjun Lee, Byong Jae Kim, Hyoungjun Kim, Keon Woo Kim, Byeong Guk Jeong, Jaehoon Lim, Jeongkyun Roh   +10 more
wiley   +1 more source

Accuracy studies for TDOA and TOA localization

, 2022
S.408-415In sensor networks, passive localization can be performed by exploiting the received signals of unknown emitters. In this paper, the Time of Arrival (TOA) measurements are investigated.
Kaune, R.
core  

A population Monte Carlo model for underwater acoustic telemetry positioning in reflective environments

Methods in Ecology and Evolution
Underwater acoustic telemetry positioning is widely used to track the fine‐scale movements of aquatic animals. In study areas near acoustically reflective surfaces, reflected transmissions may cause large detection outliers that can severely reduce the ...
James Adam Campbell, Samuel Joseph Shry, Petter Lundberg, Olle Calles, Franz Hölker   +4 more
doaj   +1 more source

Explaining the Equatorial Pacific Thermocline Response to Climate Change With a Model Hierarchy

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract Most studies of the equatorial Pacific response to anthropogenic forcing have focused on patterns of sea surface temperature (SST) change. However, similar SST patterns can be consistent with a range of different subsurface responses, each with differing physical and biogeochemical implications.
Matthew T. Luongo, Shang‐Ping Xie, Ian Eisenman, Shantong Sun, Kyle C. Armour   +4 more
wiley   +1 more source

Simulating neutron protein crystallography experiments: applications to the development of the NMX instrument at ESS

Acta Crystallographica Section D, Volume 82, Issue 7, Page 751-760, July 2026.
Monte Carlo simulations of neutron protein diffraction experiments provide useful data that models neutrons interacting with instrument components, as well as the crystal diffraction itself. These data can be applied to instrument development, such as the commissioning of the NMX Macromolecular Diffractometer at ESS.Monte Carlo neutron ray‐tracing ...
Mads Bertelsen, Peter K. Willendrup, Sunyoung Yoo, Adriano Meligrana, David McDonagh, Justin Bergmann, Esko Oksanen, Aaron D. Finke   +7 more
wiley   +1 more source

Position determination of acoustic source using a discrete probability density method supported by joint detection and time of arrival estimation [PDF]

Scientific Technical Review, 2017
The localization of various acoustic sources in a battlefield (such as weapon rounds, mortars, rockets, mines, improvised explosive devices, vehicle-borne improvised explosive devices and airborne vehicles) nowadays has significant history.
Pokrajac Ivan, Vračar Miodrag, Kozić Nadica, Brusin Radiana, Stanojević Milan   +4 more
doaj  

MIMO-signal time-of-arrival (TOA) estimation

, 2013
Due to the large-scale implementation of MIMO (multiple input multiple output) systems (such as MIMOradar, radiomonitoring system, synchronization system) the new task of space-time coding signal (MIMO-signal) TOA estimation is being set up. Utilizing of the new signals can bring both the new possibilities for improving the accuracy of MIMO-signal TOA ...
Vershinin, Aleksandr, Usharova, Daria
openaire   +1 more source