Results 21 to 30 of about 716,592 (222)
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
Lorentzian Operator for Angular Source Localization with Large Array
Journal of Telecommunications and Information Technology, 2015 Source localization problem consists of an ensemble of techniques that are used to obtain spatial information of present radiation in given medium of propagation, with a constraint of the antenna geometry and the characteristics of radiating sources ...
Said Safi, Miloud Frikel
doaj +1 more source
Direction of Arrival Estimation Algorithm Based on Coprime Array [PDF]
Hangkong bingqi, 2023 The coprime array has attracted extensive attention because of its flexible antenna placement form and larger array aperture compared with the uniform array, which can obtain higher degrees of freedom and reduce the cost of hardware resources.
Liu Jianing, Si Weijian
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Arrival Directions of the Most Energetic Cosmic Rays [PDF]
Physical Review Letters, 1995 In this Letter we examine the arrival directions of the most energetic cosmic rays (E > 2 * 10^19 eV) detected by several air shower experiments. We find that data taken by different air shower arrays show positive correlations, indicating a non--uniform arrival direction distribution.
Stanev, Todor +4 more
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Quadratically Constrained Beamforming Robust Against Direction-of-Arrival Mismatch [PDF]
, 2007 It is well known that the performance of the minimum variance distortionless response (MVDR) beamformer is very sensitive to steering vector mismatch. Such mismatches can occur as a result of direction-of-arrival (DOA) errors, local scattering, near-far ...
Chen, Chun-yang, Vaidyanathan, P. P.
core +2 more sources
Arrival Directions of Ultrahigh Energy Showers Arrival Directions of Ultrahigh Energy Showers
, 2011 Arrival directions of ultrahigh energy extensive air showers (EAS) by world arrays data are analyzed. It is shown that arrival directions of ultrahigh energy EAS by Yakutsk and P. Auger data are some correlated with pulsars of Local Arm Orion of Galaxy. It is found large amplitude of first harmony of Fourier row by data Yakutsk array.
Kolosov, V. A., Mikhailov, A. A.
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Direction-of-Arrival Estimation Based on Sparse Recovery with Second-Order Statistics [PDF]
, 2015 Traditional direction-of-arrival (DOA) estimation techniques perform Nyquist-rate sampling of the received signals and as a result they require high storage.
Chen, H., Fan, R., Wan, Q., Wen, F.
core +2 more sources
Archives of Acoustics, 2019 The paper presents and discusses a method of azimuth determination of ultrasonic echo arrival in air. The basis of the presented approach is the assumption that the received signal is a narrowband one. In this way, the direction of the signal arrival can
Bogdan KRECZMER
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Sensors, 2020 Locating active radars in real environmental conditions is a very important and complex task. The efficiency of the direction finding (DF) of ground-based radars and other microwave emitters using unmanned aerial vehicles (UAV) is dependent on the ...
Adam Rutkowski, Adam Kawalec
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Infrasound direction of arrival determination using a balloon-borne aeroseismometer [PDF]
JASA Express Letters, 2022 Free-floating balloons are an emerging platform for infrasound recording, but they cannot host arrays sufficiently wide for multi-sensor acoustic direction finding techniques.
Daniel C. Bowman +3 more
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