Results 71 to 80 of about 19,397 (216)
Multiple and single snapshot compressive beamforming
, 2015 For a sound field observed on a sensor array, compressive sensing (CS) reconstructs the direction-of-arrival (DOA) of multiple sources using a sparsity constraint.
Gerstoft, Peter +2 more
core +2 more sources
Time-angle ocean acoustic tomography using sensitivity kernels: The forward problem [PDF]
, 2013 International audienceBroadband acoustic signals around 1 kHz propagate through shallow water oceanic waveguides of ~100 m in depth and ~2 km in range as multiple ray-like wavefronts.
Aulanier, Florian +3 more
core +3 more sources
Journal of Geophysical Research: Atmospheres, Volume 131, Issue 2, 28 January 2026.Abstract Launched in April 2023, the Tropospheric Emissions: Monitoring of Pollution (TEMPO), instrument provides for the first time hourly measurements of atmospheric pollutants over most of North America at high spatial resolution (∼2 × 4.75 km2).
Prajjwal Rawat +17 more
wiley +1 more source
Improved CPD based DOA estimation of nested array
Dianxin kexue, 2021 In order to avoid searching the peak value in space domain, when estimating nested array’s the direction of direction of arrival(DOA), the canonical polyadic decomposition(CPD) was applied into the nested array, namely using the one time singular value ...
Sibei CHENG +4 more
doaj +2 more sources
A Priori-Based Subarray Selection Algorithm for DOA Estimation
Sensors, 2020 A finer direction-of-arrival (DOA) estimation result needs a large and dense array; it may, however, encounter the mutual coupling effect, which degrades the performance of DOA estimation.
Linghao Zeng +2 more
doaj +1 more source
Performance of Angle of Arrival Detection Using MUSIC Algorithm in Inter-Satellite Link
, 2018 An attitude of satellite is not always static, sometimes it moves randomly and the antenna pointing of satellite is harder to achieve line of sight communication to other satellite when it is outage by tumbling effect.
Muhammad, Cahya Budi +2 more
core +1 more source
Biogenic Next‐Gen CPL Emitters: Strategies with Proteins, Polysaccharides, and Nucleotides
Advanced Optical Materials, Volume 14, Issue 1, 9 January 2026.Biogenic molecules such as proteins, peptides, saccharides, and DNA can act as natural scaffolds for generating circularly polarized luminescence (CPL). This review highlights recent strategies exploiting these inherently chiral frameworks to achieve light emission with controllable handedness under unpolarized excitation, bridging biological ...
Ricardo Chavez‐Jimenez +4 more
wiley +1 more source
Quadratically Constrained Beamforming Robust Against Direction-of-Arrival Mismatch [PDF]
, 2007 It is well known that the performance of the minimum variance distortionless response (MVDR) beamformer is very sensitive to steering vector mismatch. Such mismatches can occur as a result of direction-of-arrival (DOA) errors, local scattering, near-far ...
Chen, Chun-yang, Vaidyanathan, P. P.
core +2 more sources
IET Communications, Volume 20, Issue 1, January/December 2026.This research proposes a Regularised Hyperparameter Bilevel Optimisation with Continual Learning‐based Deep Neural Network (RHBO‐CLDNN) for beamforming in an Ultra‐Wide Band (UWB) system. The RHBO ensures the hyperparameter efficiency at both upper and lower levels, which allows DNN to fine‐tune the unique characteristics of the UWB system, which leads
Pradeep Kumar Siddanna +2 more
wiley +1 more source
International Journal of Antennas and Propagation, 2015 A novel compressive sensing- (CS-) based direction-of-arrival (DOA) estimation algorithm is proposed to solve the performance degradation of the CS-based DOA estimation in the presence of sensing matrix mismatching. Firstly, a DOA sparse sensing model is
Hongtao Li, Chaoyu Wang, Xiaohua Zhu
doaj +1 more source