Results 31 to 40 of about 166,620,327 (286)
Robust Directional Angle Estimation of Underwater Acoustic Sources Using a Marine Vehicle
Sensors, 2018 Acoustic source localization is used in many underwater applications. Acquiring an accurate directional angle for an acoustic source is crucial for source localization.
Jinwoo Choi +4 more
doaj +1 more source
An Efficient NLOS Errors Mitigation Algorithm for TOA-Based Localization
Sensors, 2020 In time-of-arrival (TOA) localization systems, errors caused by non-line-of-sight (NLOS) signal propagation could significantly degrade the location accuracy.
Yanbin Zou, Huaping Liu
doaj +1 more source
Comparative study for broadband direction of arrival estimation techniques [PDF]
, 2012 This paper reviews and compares three different linear algebraic signal subspace techniques for broadband direction of arrival estimation --- (i) the coherent signal subspace approach, (ii) eigenanalysis of the parameterised spatial correlation matrix ...
Weiss, Stephan +3 more
core +3 more sources
A Two-Stage Method for Short-Wave Target Localization Using DOA and TDOA Measurements
IEEE Access, 2023 The ionosphere can make the short-wave source localization problem further non-linear, leading to a complicated solution process. This paper proposed a coordinated positioning algorithm based on the ionospheric virtual height (IVH) model to jointly ...
Linqiang Jiang +4 more
doaj +1 more source
predation-arrival-time: First release
, 2016 <p>This is the first release of code for the model described in 'Predation can select for later and more synchronous arrival times in migrating species' by Harts, Anna M., Kristensen, Nadiah P., and Kokko, Hanna.</p ...
Nadiah Kristensen
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Body condition of shorebirds upon arrival at their Siberian breeding grounds [PDF]
, 2009 Arctic breeding shorebirds carry substantial body stores on their long-distance migrations from their non-breeding grounds. Upon arrival at the breeding area the remains of these stores can be used for egg formation, insurance against poor feeding ...
Klaassen, Raymond +11 more
core +2 more sources
A Comprehensive Survey on Short-Distance Localization of UAVs
DronesThe localization of Unmanned Aerial Vehicles (UAVs) is a critical area of research, particularly in applications requiring high accuracy and reliability in Global Positioning System (GPS)-denied environments.
Luka Kramarić +3 more
doaj +1 more source
Track mobile devices in a cellular mobile communications system
ACI Avances en Ciencias e Ingenierías, 2009 Este artículo trata sobre el uso de algoritmos estadísticos en la estimación de señales de una red celular y su aplicación al posicionamiento y seguimiento de dispositivos móvil, con la finalidad de conseguir que la red esté en capacidad de proporcionar ...
Santiago Silva, René P. Játiva E.
doaj +1 more source
Visual discrimination thresholds for time to arrival [PDF]
Attention, Perception, & Psychophysics, 2013 In a seminal article, Todd (Journal of Experimental Psychology: Human Perception and Performance 7:795-810, 1981) reported a difference threshold of about 50 ms to discriminate the times of arrival of two differently sized objects that simultaneously approached head-on at constant but different velocities.
Klaus, Landwehr +3 more
openaire +2 more sources
SensorsIn complex underground parking scenarios, non-line-of-sight (NLOS) obstructions significantly impede positioning signals, presenting substantial challenges for accurate vehicle localization.
Shuo Hu +3 more
doaj +1 more source