Results 1 to 10 of about 79,703 (263)
Tensor Approach to DOA Estimation of Coherent Signals with Electromagnetic Vector-Sensor Array [PDF]
Sensors, 2018 This paper addresses the direction-of-arrival (DOA) estimation problem using a uniform rectangular array with electromagnetic vector-sensors in correlated/coherent signal environments. The polarization information is separated from the steering matrix to
Ming-Yang Cao +3 more
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ICT Express, 2020 Up to date, investigation of direction of arrival (DOA) gains more effort on multiple signals rather than coherent signals, particularly coherent signals measured by non-uniform and circular arrays — which still remains room for exploration.
Van-Sang Doan, Dong-Seong Kim
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Research on AUV Underwater Localization Method Based on an n-Shaped Array [PDF]
SensorsDuring continuous navigation of the mother ship, an autonomous underwater vehicle (AUV) can be recovered through an underwater hangar, and the accurate localization of the AUV relative to the mother ship is a key step in the recovery process.
Chuang Han +3 more
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Sensors, 2013 A unitary transformation-based algorithm is proposed for two-dimensional (2-D) direction-of-arrival (DOA) estimation of coherent signals. The problem is solved by reorganizing the covariance matrix into a block Hankel one for decorrelation first and then
Chengpeng Hao +3 more
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Signal estimation and coherence [PDF]
Optics Letters, 2021 We address the relation between quantum metrological resolution and quantum coherence. We develop a quantum version of the Wiener–Khintchine theorem for a suitable model of a quantum ruler, putting the contributions of the probe and measurement on equal footing. We illustrate this approach with several examples of linear metrology.
Laura Ares, Alfredo Luis
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An Enhanced Spatial Smoothing Technique of Coherent DOA Estimation with Moving Coprime Array
Sensors, 2023 This paper investigates the direction of arrival (DOA) estimation of coherent signals with a moving coprime array (MCA). Spatial smoothing techniques are often used to deal with the covariance matrix of coherent signals, but they cannot be used in sparse
Meng Yang +3 more
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Sensors, 2023 Multiple autonomous underwater vehicles (AUVs) have gradually become the trend in underwater operations. Identifying and detecting these new underwater multi-targets is difficult when studying underwater moving targets. A 28-element transducer is used to
Xiaofeng Yin +3 more
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Enhancing the Signal of Corticomuscular Coherence [PDF]
Computational and Mathematical Methods in Medicine, 2012 The availability of multichannel neuroimaging techniques, such as MEG and EEG, provides us with detailed topographical information of the recorded magnetic and electric signals and therefore gives us a good overview on the concomitant signals generated in the brain.
C. Micheli, Braun, Heinrich Christoph
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Journal of Marine Science and Engineering, 2023 Detection of underwater coherent interference is necessary as its presence affects the estimation of the desired target. In this work, a method based on high-order particle velocity gradient polarization characteristics is proposed to distinguish the ...
Di Wu, Lanyue Zhang, Jia Wang, Xueru Hu
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Efficient DOA Estimation for Wideband Sources in Multipath Environment
Remote Sensing, 2022 A novel direction-of-arrival (DOA) estimator is proposed for the mixed uncorrelated and correlated wideband sources in the multipath environment. Firstly, the novel signal model is established using the aligned envelope technique. Next, the estimator can
Xiaoyu Zhang +3 more
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