Results 31 to 40 of about 25,608 (296)
Covariance matrix estimation with heterogeneous samples [PDF]
, 2008 We consider the problem of estimating the covariance matrix Mp of an observation vector, using heterogeneous training samples, i.e., samples whose covariance matrices are not exactly Mp.
Bidon, Stéphanie +2 more
core +1 more source
An Improved Reduced-Dimension Robust Capon Beamforming Method Using Krylov Subspace Techniques
SensorsA 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
A NOVEL DIAGONAL LOADING METHOD FOR ROBUST ADAPTIVE BEAMFORMING [PDF]
Progress 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
An alternative to diagonal loading for implementation of a white noise array gain constrained robust beamformer [PDF]
, 2018 Diagonal loading is one of the most popular methods of robust adaptive beamforming, and the solution to many different problems aimed at producing beamformers which are robust to finite samples effects or/and steering vector errors.
Besson, Olivier, Olivier Besson
core +1 more source
IEEE 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
The 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
Signal waveform estimation in the presence of uncertainties about the steering vector [PDF]
, 2004 We consider the problem of signal waveform estimation using an array of sensors where there exist uncertainties about the steering vector of interest. This problem occurs in many situations, including arrays undergoing deformations, uncalibrated arrays ...
Chalus, Christophe +2 more
core +1 more source
Seismic Performance of Exterior Beam-Column Joints with Varying Diagonal Bars Diameters [PDF]
E3S Web of ConferencesBeam-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
Experimental study on shear strengthening of steel beams using CFRP strips [PDF]
Journal 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
Remote SensingFrequency Diverse Array Multiple-Input Multiple-Output (FDA-MIMO) radar introduces range-dependent beamforming capabilities, enhancing its ability to differentiate true targets from main lobe jammers.
Yumei Tan +5 more
doaj +1 more source