Results 81 to 90 of about 12,179 (194)

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

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  

Map-Aware Models for Indoor Wireless Localization Systems: An Experimental Study

, 2014
The accuracy of indoor wireless localization systems can be substantially enhanced by map-awareness, i.e., by the knowledge of the map of the environment in which localization signals are acquired.
Montorsi, Francesco, Pancaldi, Fabrizio, Vitetta, Giorgio M.   +2 more
core   +1 more source

Compressive TDOA Estimation Method Based on Amplitude Phase Clustering in Time‐Frequency Domain

IET Signal Processing, Volume 2026, Issue 1, 2026.
In the field of signal processing, modulation signals, including phase shift keying (PSK) and quadrature amplitude modulation (QAM), can significantly enhance the signal‐to‐noise ratio (SNR) through aliasing transmission following clustering and sorting.
Yang Jiao, Changxiong Xia, Jingyu Zhai, Tianyi Xing, Qun Wan, Lyudmila Mihaylova   +5 more
wiley   +1 more source

Reducing Bias for Closed‐Form TDOA Localization in Unified Near‐Field and Far‐Field Model

IET Signal Processing, Volume 2026, Issue 1, 2026.
Bias is a fundamental metric for evaluating the average error of an estimator, where lower bias indicates an estimator closer to the true value. Recent studies on time difference of arrival (TDOA) localization have introduced the modified polar representation (MPR) to unify near‐field and far‐field scenarios, enhancing robustness to the source range ...
Zhongwen Chen, Xinlei Wang, Yimao Sun, Beichuan Tang, Benjian Hao, Yanbing Yang, Liangyin Chen, Li Chai   +7 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, Peng Bai, Yubing Wang, Xiaolong Liang, Jiaqiang Zhang   +4 more
doaj   +1 more source

Energy Evolution and Acoustic Emission Precursors for Coal–Rock Instability Under Uniaxial Compression

Advances in Civil Engineering, Volume 2026, Issue 1, 2026.
The prevention of coal–rock dynamic disasters is crucial for ensuring sustainable and safe mining operations, necessitating a precise understanding of crack propagation and precursor signals for accurate hazard prediction. This study comprehensively analyzes the stress‐strain response, classifies crack propagation stages, and investigates the energy ...
Gang Jing, Shuai Wang, Jingkai Li, Leilei Zhao, Liqiang Ma, Weiguang Zhang, Ying Qin   +6 more
wiley   +1 more source

Seismo‐Acoustic Detection and Localization of Iceberg Collapse in Atka Bay, Antarctica

Geophysical Research Letters, Volume 52, Issue 23, 16 December 2025.
Abstract On 12 January 2022, an iceberg collapsed at the edge of frozen Atka Bay, Antarctica. The event generated seismic, hydroacoustic, and atmospheric infrasound waves recorded by a local network comprising land‐ and iceshelf‐based seismometers, an underwater hydrophone, and an on‐ice infrasound array.
G. Averbuch, A. Houstin, D. P. Zitterbart, J. Bonnel, J. A. Collins, J. D. Assink   +5 more
wiley   +1 more source

Source localization and denoising: a perspective from the TDOA space

, 2016
In this manuscript, we formulate the problem of denoising Time Differences of Arrival (TDOAs) in the TDOA space, i.e. the Euclidean space spanned by TDOA measurements.
Antonacci, Fabio, Bestagini, Paolo, Canclini, Antonio, Compagnoni, Marco, Sarti, Augusto, Tubaro, Stefano   +5 more
core   +1 more source

Experimental studies on multi‐scale data‐driven methods within the framework of structural health monitoring

Civil Engineering Design, Volume 7, Issue 4, Page 147-168, December 2025.
Abstract The German Research Foundation has established the priority program SPP 100+. Its subject is monitoring bridge structures in civil engineering. The data‐driven methods cluster deals with the use of measurements and their special global and local analysis methods, which complement each other in an overall multi‐scale concept in order to realize
Maximilian Rohrer, Jan Backhaus, Ulf Bestmann, Vanessa De Arriba López, Pedro Achanccaray Diaz, Markus Gerke, Carsten Könke, Armin Lenzen, Lukas Lippold, Mehdi Maboudi, Max Moeller, Carlos Luis Paz Villegas, Paul Winkler, Volkmar Zabel   +13 more
wiley   +1 more source