Results 1 to 10 of about 14,453 (92)

Machine–learning-enabled metasurface for direction of arrival estimation [PDF]

open access: yesNanophotonics, 2022
Metasurfaces, interacted with artificial intelligence, have now been motivating many contemporary research studies to revisit established fields, e.g., direction of arrival (DOA) estimation.
Huang Min   +6 more
doaj   +2 more sources

Enhancing Direction-of-Arrival Estimation with Multi-Task Learning [PDF]

open access: yesSensors
There are numerous methods in the literature for Direction-of-Arrival (DOA) estimation, including both classical and machine learning-based approaches that jointly estimate the Number of Sources (NOS) and DOA.
Simone Bianco   +5 more
doaj   +2 more sources

Direction-of-Arrival Estimation Methods in Interferometric Echo Sounding [PDF]

open access: yesSensors, 2020
Nowadays, there are two leading sea sounding technologies: the multibeam echo sounder and the multiphase echo sounder (also known as phase-difference side scan sonar or bathymetric side scan sonar). Both solutions have their advantages and disadvantages,
Piotr Grall   +2 more
doaj   +2 more sources

SPICE-ML Algorithm for Direction-of-Arrival Estimation [PDF]

open access: yesSensors, 2019
Sparse iterative covariance-based estimation, an iterative direction-of-arrival approach based on covariance fitting criterion, can simultaneously estimate the angle and power of incident signal.
Yu Zheng, Lutao Liu, Xudong Yang
doaj   +2 more sources

Small Aperture Antenna Arrays for Direction of Arrival Estimation [PDF]

open access: yesSensors
In this paper, we establish criteria for the design of small aperture antenna arrays for Direction of Arrival (DOA) estimation. We define a small aperture antenna array as one consisting of a few elements with an average interelement spacing less than or
Krutant J. Mehta, Inder J. Gupta
doaj   +2 more sources

Naked eye direction of arrival estimation with a Fresnel lens [PDF]

open access: yesScientific Reports, 2022
Direction of arrival (DoA) estimation is of primary importance in a broad range of wireless applications, where electromagnetic waves play a role. While a vast majority of existing techniques is based on phase lag comparison in antenna arrays, intensity ...
Dmytro Vovchuk   +3 more
doaj   +2 more sources

On the Error Metrics Used for Direction of Arrival Estimation [PDF]

open access: yesSensors
In this article, the error metrics used for evaluating the performance of direction of arrival (DoA) estimation are thoroughly investigated to recommend the most suitable one.
Mohammad Abdul Hannan   +3 more
doaj   +2 more sources

A comprehensive review of metasurface-assisted direction-of-arrival estimation [PDF]

open access: yesNanophotonics
Direction of arrival (DoA) estimation is a key research focus in array signal processing, and numerous progressive direction-finding algorithms have already been developed.
Huang Min   +6 more
doaj   +2 more sources

Direction‐of‐arrival estimation for wideband linear frequency modulated signals with weighted l1‐norm in the fractional Fourier domain

open access: yesIET Radar, Sonar & Navigation, 2023
Direction‐of‐arrival (DOA) estimation methods for wideband linear frequency modulated (LFM) signals based on fractional Fourier transform (FRFT) typically use the single snapshot vector in the fractional Fourier (FRF) domain.
Jun Zhong   +4 more
doaj   +1 more source

Computationally efficient direction of arrival estimation using adaptive grid selection

open access: yesIET Radar, Sonar & Navigation, 2023
The authors propose a computationally efficient approach to estimate the directions of arrival of far‐field sources impinging on a sensor array. The proposed estimator is formed using a sparse reconstruction framework, employing a novel adaptive grid ...
Yanan Wu, Andreas Jakobsson, Lutao Liu
doaj   +1 more source

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