Results 41 to 50 of about 124,888,785 (314)

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, Jeonghong Park, Yoongeon Lee, Jongdae Jung, Hyun-Taek 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

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, Tao Tang, Zhidong Wu, Paihang Zhao, Ziqiang Zhang   +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
core   +1 more source

A Comprehensive Survey on Short-Distance Localization of UAVs

Drones
The 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, Niko Jelušić, Tomislav Radišić, Mario Muštra   +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

Angle of arrival estimation for broadband signals : a comparison

, 2013
This paper reviews and compares three different linear algebraic signal subspace techniques for angle of arrival estimation. These include a polynomial matrix approach to multiple signal classification (MUSIC), a parameterised spatial covariance matrix ...
Weiss, Stephan, S. Weiss, J.G. McWhirter, McWhirter, John G., S. Lambotharan, S. Redif, Lambotharan, Sangarapillai, M. Alrmah, Alrmah, Mohamed Abubaker, Redif, Soydan   +9 more
core   +1 more source

Multipath-Assisted Ultra-Wideband Vehicle Localization in Underground Parking Environment Using Ray-Tracing

Sensors
In complex underground parking scenarios, non-line-of-sight (NLOS) obstructions significantly impede positioning signals, presenting substantial challenges for accurate vehicle localization.
Shuo Hu, Lixin Guo, Zhongyu Liu, Shuaishuai Gao   +3 more
doaj   +1 more source

Nonnegative deconvolution for time of arrival estimation

2004 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004
The interaural time difference (ITD) of arrival is a primary cue for acoustic sound source localization. Traditional estimation techniques for ITD based upon cross-correlation are related to maximum-likelihood estimation of a simple generative model.
Yuanqing Lin, Daniel D. Lee, Lawrence K. Saul   +2 more
openaire   +2 more sources

When Does a Spin Flip? Arrival Time Distributions and Information Propagation in Discrete Quantum Systems

Entropy
We analyze three distinct approaches to time of arrival (TOA) distributions for discrete quantum systems using a spin-12 particle in a constant magnetic field as a paradigmatic example.
Lionel Martellini
doaj   +1 more source