Results 41 to 50 of about 166,194,213 (138)

A Low Energy Consumption DOA Estimation Approach for Conformal Array in Ultra-Wideband

open access: yesFuture Internet, 2013
Most direction-of-arrival (DOA) estimation approaches for conformal array suffer from high computational complexity, which cause high energy loss for the direction finding system.
Liangtian Wan   +3 more
doaj   +1 more source

2D-DOA Estimation in Multipath Using EMVS Rectangle Array

open access: yesRemote Sensing, 2023
Electromagnetic vector sensor (EMVS) arrays bring an epochal opportunity for direction finding, as they enable the estimation of two-dimensional direction of arrival (2D-DOA) and polarization characteristics.
Zhe Zhang   +3 more
doaj   +1 more source

Improved DOA estimation using polarisation diversity : simulations using a wideband propagation model [PDF]

open access: yes, 2000
This paper investigates the performance of a number of direction-of-arrival (DOA) estimation algorithms in a wideband macrocellular channel using a dual-polarised antenna array.
Temeh, EK, Nix, AR, AlMidfa, K
core   +1 more source

Beamforming Direction of Arrival (DoA) Based in a Software-Defined Radio [PDF]

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
This paper presents the development and experimental validation of a low-cost Direction of Arrival (DoA) estimation system using Software-Defined Radio (SDR) technology. The system employs an NI USRP B-210 with two printed log-periodic dipole antennas in
Marcelo B. Perotoni   +2 more
doaj   +2 more sources

AN EIGEN-APPROACH FOR JOINT ESTIMATION OF DIRECTION-OF-ARRIVAL AND FREQUENCY OF AN UNKNOWN NUMBER OF SIGNALS

open access: yesJordanian Journal of Computers and Information Technology, 2020
An accurate method for estimating the direction-of-arrival (DOA) jointly with the frequencies of an unknown number of source signals is proposed using the Eigen-approach. Using the minimum eigenvalues of the autocorrelation matrices produces both the DOA
Thabet Mismar
doaj   +1 more source

DOA Estimation in Non-Uniform Noise Using Matrix Completion via Alternating Projection

open access: yesIEEE Open Journal of Antennas and Propagation, 2021
In this paper, direction-of-arrival (DOA) estimation in the presence of non-uniform noise is investigated. To achieve high estimation accuracy, the DOA estimation problem is solved with the use of a matrix completion approach.
Yingna Fei   +4 more
doaj   +1 more source

Research Progress in Methods to Estimate High-resolution Direction of Arrival

open access: yes水下无人系统学报
With the widespread application of array signal processing, the estimation of direction of arrival(DOA) as the core problem of array signal processing has made significant progress.
Wei ZHAO, Xuan LI, Chengpeng HAO
doaj   +1 more source

An Improved Propagator Estimator for DOA Estimation in Monostatic MIMO Radar in the Presence of Imperfect Waveforms

open access: yesIEEE Access, 2019
This paper discusses the direction-of-arrival (DOA) estimation problem in multiple-input multiple-output (MIMO) radar with non-orthogonal waveforms.
Chong Shen   +4 more
doaj   +1 more source

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

Polarization and DOA Estimation Based on Dual-Polarized Conformal Array

open access: yesInternational Journal of Antennas and Propagation, 2019
A dual-polarized multiple signal classification (DP-MUSIC) algorithm is presented to estimate the arrival directions and polarizations for a dual-polarized conformal array.
Chao Liu   +3 more
doaj   +1 more source

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