Results 31 to 40 of about 97,888 (314)

Null Broadening Robust Adaptive Beamforming Algorithm Based on Power Estimation

open access: yesSensors, 2022
In order to solve the problem of severely decreased performance under the situation of rapid moving sources and unstable array platforms, a null broadening robust adaptive beamforming algorithm based on power estimation is proposed in this paper.
Zhenhua Yu   +4 more
doaj   +1 more source

Robust adaptive beamforming for coprime array with steering vector estimation and covariance matrix reconstruction

open access: yesIET Communications, 2020
Coprime array exhibits many advantages over the uniform linear array (ULA) with the same number of physical sensors in resolution performance and interference suppression capability.
Zhen Meng, Wei-dong Zhou
semanticscholar   +1 more source

Detection of a signal in linear subspace with bounded mismatch [PDF]

open access: yes, 2006
We consider the problem of detecting a signal of interest in a background of noise with unknown covariance matrix, taking into account a possible mismatch between the actual steering vector and the presumed one.
Besson, Olivier
core   +1 more source

Theoretical analysis of beamforming steering vector formulations for acoustic source localization

open access: yes, 2022
International audienceIn three-dimensional acoustic source localization, setting the steering vector is an important choice. Four steering vector formulations are frequently used.
Chardon, Gilles
core   +1 more source

Robust Mainlobe Interference Suppression Based on Joint Oblique Projection for Dual Polarization Conformal Array

open access: yesInternational Journal of Antennas and Propagation, 2023
In this paper, a robust mainlobe interference suppression algorithm is proposed in a space-polarization joint domain based on a dual-polarized conformal array. An oblique projection filter can eliminate the interference while retaining the desired signal
Chao Liu   +3 more
doaj   +1 more source

Steering vector errors and diagonal loading [PDF]

open access: yes, 2004
Diagonal loading is one of the most widely used and effective methods to improve robustness of adaptive beamformers. In this paper, we consider its application to the case of steering vector errors, i.e.
Besson, Olivier, Vincent, François
core   +1 more source

A Novel Unitary ESPRIT Algorithm for Monostatic FDA-MIMO Radar

open access: yesSensors, 2020
A novel unitary estimation of signal parameters via rotational invariance techniques (ESPRIT) algorithm, for the joint direction of arrival (DOA) and range estimation in a monostatic multiple-input multiple-output (MIMO) radar with a frequency diverse ...
Feilong Liu   +5 more
doaj   +1 more source

A Robust STAP Method Based on Alternating Projection and Clutter Cancellation

open access: yesIEEE Access, 2019
Space-time steering vector mismatch of targets usually happens in the space-time adaptive processing (STAP) technique, causing space-time beam distortion. Due to the effects of clutter spectrum broadening and jamming, performance of the conventional STAP
Ningkang Chen, Ping Wei, Xiaoyu Ai
doaj   +1 more source

DoA Prediction Based Beamforming with Low Training Overhead for Highly-Mobile UAV Communication with Cellular Networks

open access: yesApplied Sciences, 2020
In supporting communications with unmanned aerial vehicles (UAVs) as aerial user equipments (aUEs) in cellular systems, the current beamforming schemes based on channel state estimation are facing severe challenges from the pilot contamination effect ...
Tianxiao Zhao   +5 more
doaj   +1 more source

A Vector Controlled Drive System for Electrically Power Assisted Steering Using Hall-Effect Sensors

open access: yesIEEE Access, 2021
Permanent Magnet Synchronous Motors (PMSMs) have been replacing conventional DC motors in numerous automotive applications. One of which is Electrically Power Assisted Steering Systems (EPAS).
Ramy R. Sorial   +3 more
doaj   +1 more source

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