Results 71 to 80 of about 4,828 (221)

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

open access: yesAdvanced 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   +1 more
wiley   +1 more source

A Coherent Integrated TDOA Estimation Method for Target and Reference Signals [PDF]

open access: yes, 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.
Qun Wan, Shanfeng Yao, Xinxin Ouyang
core   +1 more source

A method for localization TDOA estimation based on signal‐level fusion and analysis

open access: yesElectronics Letters
Passive localization using time difference of arrival (TDOA) is one of the common methods for radiated source target localization, and its localization performance depends on the accuracy of TDOA estimation. In many localization scenarios, the signals of
Dexiu Hu   +3 more
doaj   +1 more source

The Location of Partial Discharge Sources Inside Power Transformers Based on TDOA Database With UHF Sensors

open access: yesIEEE Access, 2019
This paper proposes a new method to locate the partial discharge (PD) sources inside the high-voltage power transformers with ultra-high frequency (UHF) sensors, based on the time difference of arrival (TDOA) database.
Naifan Xue   +7 more
doaj   +1 more source

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

open access: yesRadio 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   +5 more
wiley   +1 more source

TDOA Geo location estimation techniques [PDF]

open access: yes, 2009
Wireless location estimation has been gaining more recognition in the past two decades. These techniques are important especially for emergency situations as they enable emergency services to locate the distress callers.
Too, Shang Yao.
core  

A Lightweight, Secure and Reliable Geographic Routing Protocol for Urban VANETs

open access: yesIET Communications, Volume 20, Issue 1, January/December 2026.
This paper proposes a Lightweight Secure and Reliable Geographic Routing (LSRGR) protocol. The protocol operates in two phases: (i) a greedy forwarding strategy with location verification, which leverages key urban routing parameters to select the most reliable forwarder and employs a recovery mechanism against routing failures, and (ii) reliable route
Ahmed N. Hassan   +3 more
wiley   +1 more source

Asymptotic Performance of TDOA Estimation Using Satellites

open access: yesIEEE Transactions on Signal Processing, 2022
We present novel lower bounds on the localization error using a network of satellites randomly deployed on a sphere around Earth. Our new analysis approach characterizes the localization performance by its asymptotic behavior as the number of satellites gets large while assuming a dense network.
Hodaya Halevi, Itsik Bergel, Yair Noam
openaire   +2 more sources

From Detection to Countermeasure: A Review of Key Technologies in Counter‐Unmanned Aerial Vehicle Systems

open access: yesIET Cyber-Systems and Robotics, Volume 8, Issue 1, January/December 2026.
ABSTRACT With the rapid proliferation of unmanned aerial vehicles (UAVs) in the military, logistics and public safety sectors, the threat of illegal intrusion, information theft, and security breaches has increased. This paper provides a comprehensive review of recent developments in counter‐unmanned aerial vehicle (counter‐UAV) systems, focussing on ...
Lei Xing, Can Cui, Miao Wang, Chao Xu
wiley   +1 more source

Reverberation Robust TDOA Estimation using Convex Region Prior [PDF]

open access: yes, 2016
The Time Difference of Arrival (TDOA) of an acoustic source with respect to a given pair of microphones is typically estimated as the maximizer of a Measure of Synchrony (MoS) between the pair of microphone signals, within the interval -D/v, D/v], where ...
Sundar, Harshavardhan   +3 more
core   +1 more source

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