Results 11 to 20 of about 15,578 (257)

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

Nanophotonics, 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, Zheng Bin, Cai Tong, Li Xiaofeng, Liu Jian, Qian Chao, Chen Hongsheng   +6 more
doaj   +3 more sources

Direction-of-Arrival Estimation Based on Joint Sparsity [PDF]

Sensors, 2011
We present a DOA estimation algorithm, called Joint-Sparse DOA to address the problem of Direction-of-Arrival (DOA) estimation using sensor arrays. Firstly, DOA estimation is cast as the joint-sparse recovery problem.
Zhitao Huang, Yiyu Zhou, Junhua Wang
doaj   +3 more sources

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

Sensors
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, Luigi Celona, Paolo Crotti, Paolo Napoletano, Giovanni Petraglia, Pietro Vinetti   +5 more
doaj   +2 more sources

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

Sensors, 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

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

Sensors, 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, Iwona Kochanska, Jacek Marszal   +2 more
doaj   +2 more sources

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

Sensors
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]

Scientific 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, Mykola Khobzei, Dmitry Filonov, Pavel Ginzburg   +3 more
doaj   +2 more sources

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

Nanophotonics
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, Li Ruichen, Zou Yijun, Zheng Bin, Qian Chao, Jin Hui, Chen Hongsheng   +6 more
doaj   +2 more sources

Direction of Arrival Estimation Using Two Hydrophones: Frequency Diversity Technique for Passive Sonar

Sensors, 2019
The traditional passive azimuth estimation algorithm using two hydrophones, such as cross-correlation time-delay estimation and cross-spectral phase estimation, requires a high signal-to-noise ratio (SNR) to ensure the clarity of the estimated target ...
Peng Li, Xinhua Zhang, Wenlong Zhang
doaj   +3 more sources

No‐search algorithm for direction of arrival estimation [PDF]

Radio Science, 2009
Direction of arrival estimation (DOA) is an important problem in ionospheric research and electromagnetics as well as many other fields. When superresolution techniques are used, a computationally expensive search should be performed in general. In this paper, a no‐search algorithm is presented.
Tuncer, T. Engin, Ozgen, M. Tankut
openaire   +3 more sources