Results 11 to 20 of about 12,922 (190)

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

Accurate DOA Estimation With Adjacent Angle Power Difference for Indoor Localization

open access: yesIEEE Access, 2020
Indoor localization with high accuracy plays a key role in the field of Internet of Things in 5th-Generation (5G) era. With the introduction of Multiple Input Multiple Output (MIMO) technology in 5G, the direction-of-arrival (DOA) method is highly ...
Xin Zhou   +3 more
doaj   +1 more source

Blind channel equalization using weighted subspace methods [PDF]

open access: yes, 1999
This paper addresses the problems of blind channel estimation and symbol detection with second order statistics methods from the received data. It can be shown that this problem is similar to direction of arrival (DOA) estimation, where many solutions ...
Cabrera-Bean, Margarita   +1 more
core   +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.
AlMidfa, K, Nix, AR, Temeh, EK
core   +2 more sources

Source power estimation for array processing applications under low sample size constraints [PDF]

open access: yes, 2007
Copyright © 2008 IEEE. All Rights Reserved.This paper proposes a new power estimation technique for array processing applications in the low sample size regime.
Abramovich, Yuri   +2 more
core   +1 more source

Beamforming for Direction-of-Arrival (DOA) Estimation-A Survey

open access: yesInternational Journal of Computer Applications, 2013
Direction-of-Arrival (DOA) estimation plays a vital role in many applications. Beamforming is the most prominent technique to estimate DOA. In this survey, a study of various beamforming techniques and algorithms to estimate the direction of arrival of a signal is made.
Aparna. B, T Kesavamurthy, V Krishnaveni
openaire   +1 more source

Statistically Efficient Methods for Pitch and DOA Estimation [PDF]

open access: yes, 2013
Traditionally, direction-of-arrival (DOA) and pitch estimation of multichannel, periodic sources have been considered as two separate problems. Separate estimation may render the task of resolving sources with similar DOA or pitch impossible, and it may ...
Christensen, Mads Græsbøll   +2 more
core   +2 more sources

Acoustic Metasurface for Space-time Reflection Manipulation. [PDF]

open access: yesAdv Sci (Weinh)
This article introduces a novel space‐time acoustic metasurface (STAM) to overcome the limitations of bulky structures in sound modulation. Using a programmable piezoelectric array, the STAM precisely controls waterborne acoustic waves through spatiotemporal phase modulation.
Yang Y   +6 more
europepmc   +2 more sources

Underwater Ambiguity Elimination Method Based on Co-Prime Sensor Array

open access: yesSensors, 2020
Recently, the direction of arrival estimation with co-prime arrays has gradually been applied in underwater scenarios because of its significant advantages over traditional uniform linear arrays.
Tian Lan, Yilin Wang, Longhao Qiu
doaj   +1 more source

Deep Unfolded Gridless DOA Estimation Networks Based on Atomic Norm Minimization

open access: yesRemote Sensing, 2022
Deep unfolded networks have recently been regarded as an essential way to direction of arrival (DOA) estimation due to the fast convergence speed and high interpretability. However, few consider gridless DOA estimation.
Hangui Zhu   +4 more
doaj   +1 more source

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