Results 31 to 40 of about 714,041 (272)

Tracking Positioning Algorithm for Direction of Arrival Based on Direction Lock Loop

open access: yesFuture Internet, 2015
In order to solve the problem of poor real-time performance, low accuracy and high computational complexity in the traditional process of locating and tracking of Direction of Arrival (DOA) of moving targets, this paper proposes a DOA algorithm based on ...
Xiu-Zhi Cheng   +3 more
doaj   +1 more source

Radioactive Direction of Arrival Estimation Using Neural Networks Approach [PDF]

open access: yesEPJ Web of Conferences, 2023
In this paper, we present a comprehensive investigation into improving Direction of Arrival (DOA) estimation for gamma-emitting isotopes using deep neural networks.
Salomon Yossi   +5 more
doaj   +1 more source

Prior knowledge-based direction of arrival estimation

open access: yes2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2011
In a number of direction of arrival (DOA) estimation applications there exists prior knowledge about the sources whose bearings are to be determined. We study the case when this prior information concerns some of the source positions and their correlation state, which is a relevant case in, for example, RADAR scenarios where stationary objects exists ...
Wirfält, Petter   +3 more
openaire   +3 more sources

Design of sparse arrays via deep learning for enhanced DOA estimation

open access: yesEURASIP Journal on Advances in Signal Processing, 2021
This paper introduces an enhanced deep learning-based (DL) antenna selection approach for optimum sparse linear array selection for direction-of-arrival (DOA) estimation applications.
Steven Wandale, Koichi Ichige
doaj   +1 more source

Adaptive Beamforming Approaches to Improve Passive Radar Performance in Sea and Wind Farms’ Clutter

open access: yesSensors, 2022
This article presents the problem of passive radar vessel detection in a real coastal scenario in the presence of sea and wind farms’ clutter, which are characterised by high spatial and time variability due to the influence of weather conditions ...
Javier Rosado-Sanz   +3 more
doaj   +1 more source

Off-grid Direction of Arrival Estimation Using Sparse Bayesian Inference

open access: yes, 2012
Direction of arrival (DOA) estimation is a classical problem in signal processing with many practical applications. Its research has recently been advanced owing to the development of methods based on sparse signal reconstruction.
Xie, Lihua, Yang, Zai, Zhang, Cishen
core   +1 more source

Biomimetic direction of arrival estimation for resolving front-back confusions in hearing aids [PDF]

open access: yes, 2015
Sound sources at the same angle in front or behind a two-microphone array (e.g., bilateral hearing aids) produce the same time delay and two estimates for the direction of arrival: A front-back confusion.
Aichner W. R.   +6 more
core   +1 more source

Direction finding by sparse‐based approach for dual‐polarised conformal array in the presence of gain and phase uncertainties

open access: yesIET Radar, Sonar & Navigation, 2023
This article investigates the problem of robust direction‐of‐arrival (DOA) estimation with unknown sensor gain and phase uncertainties. A Dual‐Polarised Regularised Multiple FOCal Underdetermined System Solver is proposed to estimate the 2‐D DOA for the ...
Chao Liu   +3 more
doaj   +1 more source

Direction of arrival estimation using robust complex Lasso

open access: yes, 2016
The Lasso (Least Absolute Shrinkage and Selection Operator) has been a popular technique for simultaneous linear regression estimation and variable selection.
Ollila, Esa
core   +1 more source

A New Analysis Method for Reconstructing the Arrival Direction of TeV Gamma-rays Using a Single Imaging Atmospheric Cherenkov Telescope [PDF]

open access: yes, 2000
We present a method of atmospheric Cherenkov imaging which reconstructs the unique arrival direction of TeV gamma rays using a single telescope. The method is derived empirically and utilizes several features of gamma-ray induced air showers which ...
Akerlof   +15 more
core   +2 more sources

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