Results 51 to 60 of about 7,513 (141)
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
Multi-TDOA Location Algorithm for Three Satellites TDOA Passive Location System
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
Cross Recurrence Plot Analysis Based Method For TDOA Estimation Of Underwater Acoustic Signals
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 +3 more
core +2 more sources
Technologies and solutions for location-based services in smart cities: past, present, and future [PDF]
Location-based services (LBS) in smart cities have drastically altered the way cities operate, giving a new dimension to the life of citizens. LBS rely on location of a device, where proximity estimation remains at its core. The applications of LBS range
Ansari, Imran Shafique +4 more
core +2 more sources
TranQuiL: Long Range Detection and Localization of Interference in Radio Quiet Zones
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--based localization in two dimensions: the bifurcation curve
In this paper, we complete the study of the geometry of the TDOA map that encodes the noiseless model for the localization of a source from the range differences between three receivers in a plane, by computing the Cartesian equation of the bifurcation ...
Compagnoni, Marco, Notari, Roberto
core +1 more source
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
Source localization and denoising: a perspective from the TDOA space
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 +5 more
core +1 more source
A combined algorithm approach for PD location estimation using RF antennas [PDF]
To locate the positions of partial discharge sources in free space at least four RF antennas are arranged in a suitable spatial geometry to detect the radiated electromagnet energy from the discharge.
Fresno, José Manuel +3 more
core +1 more source
Joint Time Synchronisation and Localisation Method by TDOA Observation in 5G Networks
This work proposes a method for joint time synchronisation and localisation problems and proposes to obtain the initial values of the alternating iteration algorithm through solving the MVIE problem. The simulations showcase the satisfying positioning accuracy and clock synchronisation accuracy of the proposed method.
Qiao Liu +3 more
wiley +1 more source

