Results 51 to 60 of about 1,348 (205)

Beam-Space Post-Doppler Reduced-Dimension STAP Based on Sparse Bayesian Learning

Remote Sensing
The space–time adaptive processing (STAP) technique can effectively suppress the ground clutter faced by the airborne radar during its downward-looking operation and thus can significantly improve the detection performance of moving targets. However, the
Junxiang Cao, Tong Wang, Degen Wang
doaj   +1 more source

A robust refined training sample reweighting space–time adaptive processing method for airborne radar in heterogeneous environment

IET Radar, Sonar & Navigation, 2021
To improve the clutter suppression performance of airborne radar in heterogeneous environment, a robust refined training sample reweighting space–time adaptive processing (STAP) method called RRSRW is proposed here.
Hao Xiao, Tong Wang, Shuguang Zhang, Cai Wen   +3 more
doaj   +1 more source

A flexible dual‐gate thin‐film transistor‐based tactile sensor array with polarity‐aware encoding for neuromorphic recognition

FlexMat, EarlyView.
A flexible piezoelectric tactile sensor array is developed by integrating polyvinylidene fluoride sensing elements with dual‐gate indium‐tin‐zinc oxide thin‐film transistor‐based pixel amplifiers. Direct coupling to the high‐impedance gate minimizes signal loss, enabling twofold voltage amplification and an extended effective relaxation time of ∼4.86 s
Tengteng Lei, Boyi Zhu, Yushen Hu, Tianming Li, Man Wong   +4 more
wiley   +1 more source

The Digital Visibility‐Belonging Paradox: Digital Cohesion and Control in Contemporary Organizational Management

Human Resource Management, EarlyView.
ABSTRACT Digital visibility has become a central organizing condition in digitally mediated work, reshaping how employees are recognized, evaluated, and connected. In this conceptual paper, we theorize digital visibility as a sociomaterial HRM condition that simultaneously enables recognition and generates performative pressures. Anchored in relational
Miles M. Yang, Richard A. Hunt, Fang Lee Cooke, Ying Lu   +3 more
wiley   +1 more source

Revealing the Resonant Physics of Open Photonic Time Crystals

Laser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero, Sergei Gladyshev, David Globosits, Stefan Rotter, Egor A. Muljarov, Thomas Weiss   +5 more
wiley   +1 more source

Where were all the trees? Computer vision meets landscape history to unlock the potential of historical Ordnance Survey maps

People and Nature, EarlyView.
Abstract The first edition of the Ordnance Survey's 1:2500 County Series is marked with treed areas, such as woodlands and orchards, and, remarkably, freestanding trees. Consequently, it is an unparalleled source of information on the distribution of trees across Britain in the mid‐late nineteenth century, when the maps were first surveyed. In order to
Toby Pillatt, William A. P. Smith
wiley   +1 more source

Automatic insect identification, counting, and monitoring techniques: a review

Pest Management Science, EarlyView.
Automated insect monitoring increasingly integrates optical, acoustic, infrared, radar, electrostatic, and biosensing technologies with artificial intelligence. No single approach is universally optimal; reliable deployment depends on task‐specific validation, representative datasets, robustness under field conditions, energy autonomy, connectivity ...
Mariano González García, Juan Carlos Noguera Polania, Rosana González Combarros, José Ignacio López Sánchez   +3 more
wiley   +1 more source

Ground Clutter and Noise Mitigation Based on Range–Doppler Spectral Processing for Polarimetric Weather Radar

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Spectral polarization filtering in the range–Doppler domain plays an important role in weather radar clutter mitigation. However, when ground clutter and precipitation overlap, these methods tend to filter out clutter-contaminated precipitation ...
Mengyun An, Jiapeng Yin, Jiankai Huang, Xue Tan, Yongzhen Li   +4 more
doaj   +1 more source

GPR Antipersonnel Mine Detection Based on Tensor Robust Principal Analysis

Remote Sensing, 2019
The ground Penetrating Radar (GPR) is a promising remote sensing modality for Antipersonnel Mine (APM) detection. However, detection of the buried APMs are impaired by strong clutter, especially the reflection caused by rough ground surfaces.
Xiaoji Song, Tao Liu, Deliang Xiang, Yi Su   +3 more
doaj   +1 more source

Enhancing severe convection forecasts with microwave radiance assimilation in limited‐area models

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Microwave satellite radiances remain largely underexploited in convection‐permitting limited‐area models. We assess the assimilation of humidity‐sensitive radiances from the MHS instrument in the operational ICON‐2I model, improving the precipitation forecast of a severe convective event over the Marche region, Italy, substantially by correcting ...
Marcello Grenzi, Thomas Gastaldo, Virginia Poli, Chiara Marsigli, Tijana Janjic, Alberto Carrassi   +5 more
wiley   +1 more source