Results 11 to 20 of about 148,969 (298)

On robust Capon beamforming and diagonal loading

open access: yesIEEE Transactions on Signal Processing, 2003
The Capon (1969) beamformer has better resolution and much better interference rejection capability than the standard (data-independent) beamformer, provided that the array steering vector corresponding to the signal of interest (SOI) is accurately known.
Jian Li, P. Stoica, null Zhisong Wang
openaire   +3 more sources

A robust beamforming algorithm based on steering vector mismatch

open access: yesXi'an Gongcheng Daxue xuebao, 2021
A robust beamforming algorithm of particle swarm support vector machine is proposed, which can effectively overcome the influence of steering vector mismatch caused by non-ideal factors such as the array element position disturbance and the arrival angle
Lin CUI, Yixin ZHANG, Yameng JIAO
doaj   +1 more source

The Capon Method for Mercury's Magnetic Field Analysis

open access: yesFrontiers in Physics, 2020
Characterization of Mercury's internal and external magnetic field is one of the primary goals of the magnetometer experiment on board the BepiColombo MPO (Mercury Planetary Orbiter) spacecraft.
Simon Toepfer   +5 more
doaj   +1 more source

Performance Analysis of Linearly Arranged Concentric Circular Antenna Array with Low Sidelobe Level and Beamwidth Using Robust Tapering Technique

open access: yesMicromachines, 2022
In this research, a novel antenna array named Linearly arranged Concentric Circular Antenna Array (LCCAA) is proposed, concerning lower beamwidth, lower sidelobe level, sharp ability to detect false signals, and impressive SINR performance.
Imteaz Rahaman   +8 more
doaj   +1 more source

MECHANICAL PROPERTIES OF MRP LIGHTWEIGHT CONCRETE AND EFFECT OF COMPRESSIVE STRENGTH ON SHEAR CAPACITY OF BEAMS [PDF]

open access: yesJournal of Engineering and Sustainable Development, 2019
The objective of this study is to investigate the effect of compressive strength on the shear capacity of Modified Reactive Powder Lightweight Concrete (MRPLWC) Beams.
Wissam Kadhim AlsaraJ   +2 more
doaj   +3 more sources

Performance analysis of beamformers using generalized loading of the covariance matrix in the presence of random steering vector errors [PDF]

open access: yes, 2005
Robust adaptive beamforming is a key issue in array applications where there exist uncertainties about the steering vector of interest. Diagonal loading is one of the most popular techniques to improve robustness.
Besson, Olivier, Vincent, François
core   +1 more source

Performance analysis for a class of robust adaptive beamformers [PDF]

open access: yes, 2004
Robust adaptive beamforming is a key issue in array applications where there exist uncertainties about the steering vector of interest. Diagonal loading is one of the most popular techniques to improve robustness.
Besson, Olivier, Vincent, François
core   +1 more source

Diagonally-reinforced beam–column joints reinforced under cyclic loading [PDF]

open access: yesProceedings of the Institution of Civil Engineers - Structures and Buildings, 2005
The beam–column joints in a reinforced concrete frame are vulnerable to damage caused by seismic events. The conventional detailing using transverse hoops usually results in serious joint congestion, which creates contruction problems. This paper introduces a new detail especially developed for low to medium seismicity, which involves the use of ...
Huang, K, Au, FTK, Pam, HJ
openaire   +3 more sources

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

DOA Estimation for Sources with Large Power Differences

open access: yesInternational Journal of Antennas and Propagation, 2021
Sources with large power differences are very common, especially in complex electromagnetic environments. Classical DOA estimation methods suffer from performance degradation in terms of resolution when dealing with sources that have large power ...
Qingyuan Fang   +3 more
doaj   +1 more source

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