Results 31 to 40 of about 148,969 (298)

A Novel Beamformer Robust to Steering Vector Mismatch [PDF]

open access: yes, 2006
It is well know that the performance of the minimum variance distortionless response (MVDR) beamformer is very sensitive to steering vector mismatch because of the signal cancellation.
Chen, Chun-Yang, Vaidyanathan, P. P.
core   +1 more source

An Improved Reduced-Dimension Robust Capon Beamforming Method Using Krylov Subspace Techniques

open access: yesSensors
A reduced-dimension robust Capon beamforming method using Krylov subspace techniques (RDRCB) is a diagonal loading algorithm with low complexity, fast convergence and strong anti-interference ability.
Xiaolin Wang, Xihai Jiang, Yaowu Chen
doaj   +1 more source

Robust Adaptive Beamforming Based on Desired Signal Power Reduction and Output Power of Spatial Matched Filter

open access: yesIEEE Access, 2018
The performance of the conventional beamformers degrades in the presence of desired signal in the data samples and array steering vector (ASV) mismatch. Many beamformers have been proposed to improve the performance of standard Capon beamformer. However,
Denis Igambi, Xiaopeng Yang, Babur Jalal
doaj   +1 more source

Experimental study on shear strengthening of steel beams using CFRP strips [PDF]

open access: yesJournal of Structural and Construction Engineering, 2020
Steel structures are one of the most used type of structures. Some of the steel structures may need to be strengthened due to different reasons. There are different methods for strengthening of this kind of structures.
Kambiz Narmashiri, Mahbobeh Joshang Rigi
doaj   +1 more source

A NOVEL DIAGONAL LOADING METHOD FOR ROBUST ADAPTIVE BEAMFORMING [PDF]

open access: yesProgress In Electromagnetics Research C, 2011
The diagonal loading method is a simple and e-cient method to improve the robustness of beamformers. However, how to determine the ideal diagonal loading level has not been adequately addressed. In this paper, it is observed in the simulation that the peak of the main beam is moved with the diagonal loading level when there exists a Direction of ...
Wenyi Wang, Renbiao Wu, Junli Liang
openaire   +1 more source

Robust adaptive beamforming method for large-scale array with automatic diagonal loading and steering vector estimation

open access: yesThe Journal of Engineering, 2019
Here, the authors propose a novel robust adaptive beamforming method, which is robust to both of the covariance matrix mismatch and the steering vector estimation mismatch.
Lei Yu   +3 more
doaj   +1 more source

Seismic Performance of Exterior Beam-Column Joints with Varying Diagonal Bars Diameters [PDF]

open access: yesE3S Web of Conferences
Beam-column joints (BCJs) are structural components that are prone to failure. BCJ failures, triggered by earthquakes, can result in severe structural collapse. Joint damage can be reduced by adding diagonal bars.
Lianasari Angelina Eva   +3 more
doaj   +1 more source

Performance of perforated FRP stub beams subject to static transverse actions [PDF]

open access: yes, 2020
This paper presents an experimental programme designed to investigate the failure mode and ultimate capacity of pultruded glass fibre reinforced polymer (GFRP) cellular profiles subject to transverse loading.
Gand, Alfred   +2 more
core   +1 more source

The effect of masonry infill walls on the reinforced concrete frames behavior under lateral load [PDF]

open access: yes, 2020
The reinforced concrete structures with masonry infill walls are widely used to construct buildings in Algeria, as in many parts of the world. According to earthquake analysis, this type of construction can undergo serious damage under seismic load.
LAYADI, Ismail   +3 more
core  

Comparative study of Steel-FRP, FRP and steel reinforced coral concrete beams in their flexural performance [PDF]

open access: yes, 2020
In this paper, a comparative study of Carbon Fiber Reinforced Polymer (CFRP) Bar and Steel-Carbon Fiber Composite Bar (SCFCB) reinforced coral concrete beams are made through a series experimental tests and theoretical analysis.
Fu, F., Huang, C., Wang, L., Zhang, J.
core   +1 more source

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