Results 21 to 30 of about 714,041 (272)

Direction-of-Arrival Estimation Based on Sparse Recovery with Second-Order Statistics [PDF]

open access: yes, 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

Direction of Arrival Estimation Algorithm Based on Coprime Array [PDF]

open access: yesHangkong 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
doaj   +1 more source

Infrasound direction of arrival determination using a balloon-borne aeroseismometer [PDF]

open access: yesJASA 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
doaj   +1 more source

Quadratically Constrained Beamforming Robust Against Direction-of-Arrival Mismatch [PDF]

open access: yes, 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

open access: yes, 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.
openaire   +2 more sources

Estimation of the Azimuth Angle of the Arrival Direction for an Ultrasonic Signal by Using Indirect Determination of the Phase Shift

open access: yesArchives 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
doaj   +1 more source

Some of Problems of Direction Finding of Ground-Based Radars Using Monopulse Location System Installed on Unmanned Aerial Vehicle

open access: yesSensors, 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
doaj   +1 more source

Array signal processing for maximum likelihood direction-of-arrival estimation [PDF]

open access: yes, 2013
Emitter Direction-of-Arrival (DOA) estimation is a fundamental problem in a variety of applications including radar, sonar, and wireless communications.
He, B., Li, M., Lu, Y.
core   +1 more source

Sparse methods for direction-of-arrival estimation [PDF]

open access: yes, 2018
65 pages, overview ...
Yang, Zai   +3 more
openaire   +2 more sources

Radar Antenna Selection for Direction-of-Arrival Estimations [PDF]

open access: yes2021 IEEE Radar Conference (RadarConf21), 2021
Multi-antenna radars exhibit positively correlated detection performance with the number of elements utilized. The feasibility of refining antenna arrays to reduce cost of operation with only marginal loss of performance has attracted significant attention as utilizing a large number of elements may be prohibitively costly in terms of computation and ...
Atalik, Arda   +2 more
openaire   +2 more sources

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