Results 91 to 100 of about 19,236 (242)
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 12, December 2025.Abstract Due to the properties of sound propagation underwater, including the existence of the SOFAR channel, sounds in the ocean can propagate over large distances with little attenuation. This makes passive acoustics a relevant method for monitoring natural events such as ice calving, earthquakes, and underwater volcanic eruptions.
Pierre‐Yves Raumer +4 more
wiley +1 more source
Information and Telecommunication Sciences, 2017 Background. At the present time the development of technologies for construction of unmanned aerial vehicles (UAVs) are used for the solution of a wide range of tasks, such as: emergency rescue operations, autonomous observation and monitoring of ...
Igor Tovkach, Serhii Zhuk
doaj +1 more source
A Hybrid AOA and TDOA-Based Localization Method Using Only Two Stations
International Journal of Antennas and Propagation, 2021 Target localization plays an important role in the application of radar, sonar, and wireless sensor networks. In order to improve the localization performance using only two stations, a hybrid localization method based on angle of arrival (AOA) and time ...
Xiaolong Li, Yi Xing, Zhenkai Zhang
doaj +1 more source
A Coherent Integrated TDOA Estimation Method for Target and Reference Signals
Electronics, 2022 The performance of a time difference of arrival (TDOA) localization system is severely affected by time synchronization errors, and making use of reference signals is a common solution for the problem.
Xinxin Ouyang, Shanfeng Yao, Q. Wan
semanticscholar +1 more source
Inferring activity patterns of aquatic animals from single‐receiver acoustic telemetry setups
Methods in Ecology and Evolution, Volume 16, Issue 12, Page 2931-2944, December 2025.Abstract Acoustic telemetry has become an essential tool for studying activity patterns of animals in aquatic environments. Activity is typically recorded using transmitters with integrated sensors or dense receiver arrays for positional tracking. While effective, these approaches are financially and logistically expensive due to the need for advanced ...
Eneko Aspillaga +5 more
wiley +1 more source
Reflection-Aware Sound Source Localization
, 2017 We present a novel, reflection-aware method for 3D sound localization in indoor environments. Unlike prior approaches, which are mainly based on continuous sound signals from a stationary source, our formulation is designed to localize the position ...
An, Inkyu +3 more
core +1 more source
M‐SADR: Mobile Self Adaptive Data Rate for Enhanced LoRa End‐Device Connectivity on the Move
International Journal of Communication Systems, Volume 38, Issue 15, October 2025.The proposed M‐SADR method targets mobile LoRa end‐devices and achieves better performance, with a 2.4% improvement in packet delivery ratio and a 5.7% reduction in power consumption per successfully delivered packet. ABSTRACT Mobility is a critical aspect of the Internet of Things, reflecting the diverse and dynamic nature of potential applications ...
Vasileios Moysiadis +6 more
wiley +1 more source
The influences of environmental conditions on source localisation using a single vertical array and their exploitation through ground effect inversion [PDF]
, 2010 The performance of microphone arrays outdoors is influenced by the environmental conditions. Numerical simulations indicate that, while horizontal arrays are hardly affected, direction-of-arrival (DOA) estimation with vertical arrays becomes biased in ...
Kruse, Roland, Taherzadeh, Shahram
core
Outbreak of Gigantic Jets Over an Isolated Thunderstorm in South China
Earth and Space Science, Volume 12, Issue 10, October 2025.Abstract On the evening of 18 August 2022, a sequence of five gigantic jets (GJs) were recorded within 7 min over an isolated coastal thunderstorm approximately 170 km to the southwest of Luoding County, Guangdong Province of China. The thunderstorm exhibited a higher −10°C isotherm altitude (500 m above average), a significant CAPE value (∼2,158 J/kg),
Yiwei Zhao +10 more
wiley +1 more source
Optimal Sensor Deployment and Velocity Configuration With Hybrid TDOA and FDOA Measurements
IEEE Access, 2019 Source localization based on the hybrid time-difference-of-arrival (TDOA) and frequency-difference-of-arrival (FDOA) measurements from distributed sensors is an essential problem in wireless sensor networks (WSNs).
Weijia Wang +4 more
doaj +1 more source