Results 51 to 60 of about 702,523 (224)

An improved radar clutter suppression by simple neural network

open access: yesIET Radar, Sonar & Navigation, 2023
The presented paper is further focused on the presentation and subsequent assessment of utilising a proposed Neural Network (NN) with simple architecture in the role of a signal preprocessing algorithm for the Constant False Alarm Rate detector and the ...
Jozef Perďoch, S. Gazovová, M. Pacek
semanticscholar   +1 more source

Sustainable Upcycling of Office Waste Paper Into Cobalt/Carbon Aerogels for Highly Efficient Microwave Absorption

open access: yesElectron, EarlyView.
Co/C aerogels (Co/CAs) are successfully fabricated with office waste paper (OWP) as the raw material by loading ZIF‐67 crystals. The optimal sample exhibited an effective absorption bandwidth of 5.6 GHz, which outperforms many biomass‐derived microwave absorbing materials.
Yan Wang   +5 more
wiley   +1 more source

Polarisation-space-time adaptive processing for heterogeneous clutter suppression of airborne-phased array radar

open access: yesThe Journal of Engineering, 2019
Conventional space-time adaptive processing (STAP) achieves clutter suppression by combining spatial signals and the temporal pulses. However, extreme slow-moving target cannot be effectively detected by space-time joint filtering in ambiguous and non ...
Yuze Sun, Jian Yang, Xiaopeng Yang
doaj   +1 more source

An Inter-Subband Processing Algorithm for Complex Clutter Suppression in Passive Bistatic Radar

open access: yesRemote Sensing, 2021
Clutter suppression is a challenging problem for passive bistatic radar systems, given the complexity of actual clutter scenarios (stationary, time-varying and fractional-order clutter).
Luo Zuo, Jun Wang, Jinxin Sui, Nan Li
doaj   +1 more source

A Deep Neural Network Based on Two‐Stage Training for Estimating Heart Rate Variability From Camera Videos

open access: yesHealth Care Science, EarlyView.
Heart Rate Variability Estimation from Camera Videos ABSTRACT Background Studies have shown that heart rate variability (HRV) is a predictor of the prognosis of cardiovascular diseases. Contact heartbeat monitoring equipment is widely used, especially in hospitals, and benefits from the rapidity and accuracy of the detection of physiological health ...
Lan Lan   +8 more
wiley   +1 more source

Deep learning–driven chromatic X‐ray imaging based on multicolor halide scintillation film stacks for quantitative densitometry

open access: yesInformation &Functional Materials, EarlyView.
The vapor‐deposited stacking strategy for multicolor halide scintillation films has been developed for chromatic X‐ray imaging, while enabling the systematic curation of a materials genome database. The effectiveness has been demonstrated through segmentation of complex circuit boards and 3D reconstruction of material density distributions.
Hao Wang, Shuai Zhang, Zhiguo Xia
wiley   +1 more source

Examining early inhibitory control and emotion regulation as predictors of childhood internalizing and externalizing problems: A longitudinal study

open access: yesJCPP Advances, EarlyView.
In a longitudinal sample (n = 94), we tested links between inhibitory control at age 4, emotion regulation (ER) at age 6, and internalizing (INT) and externalizing (EXT) problems at ages 9–10. Early inhibitory control did not predict ER or later INT/EXT (no mediation), whereas ER at 6 showed prospective associations with both outcomes.
Lilja K. Jónsdóttir   +4 more
wiley   +1 more source

Executive Function and Entrepreneurial Opportunity Exploitation Under Risk and Uncertainty

open access: yesStrategic Change, EarlyView.
ABSTRACT This study examines how executive functions shape entrepreneurial opportunity exploitation under different knowledge environments. Drawing on Knight's distinction between risk and uncertainty, we conducted a vignette experiment with 200 working adults.
Ipek Koparan   +3 more
wiley   +1 more source

Transductive Radar Clutter Segmentation Network for Ionospheric Inhomogeneity Clutter Suppression

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The ionosphere turbulent motions, detected by radar systems, result in a complex form of ionospheric inhomogeneity clutter. In this article, we introduce transductive radar clutter segmentation network (TRCS-Net), a deep unfolding network architecture ...
Yuanbiao Li, Lei Yu, Yinsheng Wei
doaj   +1 more source

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