Results 51 to 60 of about 1,760 (173)
Spaceborne Distributed Array Processing for Precision Source Localization
International Journal of Satellite Communications and Networking, EarlyView.ABSTRACT Satellite‐based signals intelligence and spectrum sensing increasingly rely on low‐latency signal localization. However, operational processing chains often remain ground‐based, stressing feeder links and limiting scalability as constellations grow.
Dany Mestas +4 more
wiley +1 more source
The Journal of Engineering, 2019 Here, the authors propose a robust adaptive beamforming method based on desired signal steering vector estimation and interference-plus-noise covariance matrix reconstruction, so as to attenuate the influences of the desired signal steering vector ...
Junsheng Huang, Hongtao Su, Yang Yang
doaj +1 more source
Distributed acoustic sensing for marine mammal monitoring
Methods in Ecology and Evolution, EarlyView.Abstract Marine mammal monitoring provides critical data to inform species management and sustainable industrial development. Passive acoustic monitoring, in particular, can provide continuous, long‐term and non‐observer‐biased data, with a subset of systems capable of delivering data in near‐real time.
Léa Bouffaut
wiley +1 more source
Review on Deep Learning‑Based Adaptive Beamforming for Array Antennas
Shuju Caiji Yu ChuliWith the increasing of array antennas and the growing complexity of anti-jamming， traditional adaptive beamforming methods often suffer from high computational complexity. Deep learning， with its powerful data-driven capabilities， offers a novel approach
XU Zheng +3 more
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Laser &Photonics Reviews, Volume 20, Issue 21, 6 November 2026.A digitally multiplexed, large‐aperture photoacoustic and ultrasound imaging architecture is presented to overcome the fundamental limited‐view artifact inherent in conventional arrays. By significantly broadening the structural detection coverage, this scalable platform enables high‐fidelity 3D visualization of human extremities within a single ...
Sinyoung Park +8 more
wiley +1 more source
Dynamic Cell Division for Interference Management in Satellite Direct‐to‐Cell Systems
International Journal of Satellite Communications and Networking, Volume 44, Issue 6, Page 757-765, November/December 2026.ABSTRACT Direct‐to‐cell (D2C) connectivity enables future non‐terrestrial networks to provide service directly to standard terrestrial user equipment (UE) when terrestrial networks (TN) are unavailable. In this work, the satellite system is considered as a secondary network that supplements existing TN coverage while minimizing interference to the ...
Satya Chan +3 more
wiley +1 more source
Robust Adaptive Beamforming With Subspace Projection and Covariance Matrix Reconstruction
IEEE Access, 2019 In this paper, we present a subspace projection and covariance matrix reconstruction (SPCMR) algorithm for adaptive beamforming to improve the robustness against large SV mismatch.
Xiaoyu Ai, Lu Gan
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Robust adaptive beamforming based on the effectiveness of reconstruction [PDF]
Signal Processing, 2016 The beamformers by joint estimation of the steering vector (SV) and the reconstructed interference-plus-noise covariance (INC) matrix have been investigated. However, few of them concerned about the effectiveness of reconstruction. In this paper, a novel beamformer is proposed, which introduces the improve factor (IF) to evaluate the improvement scale ...
Yuping Zhang, Yunjie Li, Meiguo Gao
openaire +1 more source
WAH‐i: Optimising microphone array geometry for customised localisation accuracy
Methods in Ecology and Evolution, Volume 17, Issue 11, Page 3199-3219, November 2026.Abstract Accurate spatial localisation of free‐flying echolocating bats is foundational for resolving fine‐scale flight and echolocation behaviour, prey interception and spatial decision‐making in natural environments. Acoustic localisation using microphone arrays is widely employed for this purpose, yet array geometries in field studies are typically ...
Ravi Umadi
wiley +1 more source
All‐Optical Dual‐Angle Diffractive Neural Networks for 2D Direction‐of‐Arrival Estimation
Nanophotonics, Volume 15, Issue 20, 27 October 2026.A diffractive neural network with an integrated spatial encoder resolves the direction of an incoming terahertz signal entirely through optical propagation. After the signal passes through the cross‐shaped input and two 3D‐printed diffractive layers, two detector arrays read its two incident angles simultaneously.
Chenjie Xiong +8 more
wiley +1 more source