Results 31 to 40 of about 462,479 (185)

Designing Sequences With Minimized Mean Sidelobe Level for Cognitive Radars

IEEE Access, 2021
In this paper, a set of sequences is developed with a minimized mean sidelobe level (MSL). The problem is formulated for cognitive radars using the $l_{1}$ -norm, where the target cognition determines which sidelobes should be suppressed.
Hamid Esmaeili Najafabadi, Henry Leung, Peter W. Moo   +2 more
doaj   +1 more source

Direct Observation of Radical‐Mediated Oxide‐to‐Alloy Transformation in Solution Under Pulsed Laser Irradiation

Angewandte Chemie, EarlyView.
Time‐resolved in situ x‐ray absorption spectroscopy and DFTB‐based molecular dynamics simulations identify direct hydrogen atom transfer from ethanol to lattice oxygen as the elementary step of laser‐driven reduction in NiCo2O4. While this transfer is facile, the subsequent release of lattice oxygen is entropy‐driven and becomes accessible only at ...
Woo Hyeok Kim, Sieon Jung, Ahreum Min, Raja Arumugam Senthil, Juhyeon Park, Wonil Seo, Seung Yeon Choi, Junu Bae, Cheolhee Yang, In‐hui Hwang, Joonghan Kim, Tae Wu Kim, Myong Yong Choi   +12 more
wiley   +2 more sources

SVD-Based Technique for Interference Cancellation and Noise Reduction in NMR Measurement of Time-Dependent Magnetic Fields

Sensors, 2016
A nuclear magnetic resonance (NMR) experiment for measurement of time-dependent magnetic fields was introduced. To improve the signal-to-interference-plus-noise ratio (SINR) of NMR data, a new method for interference cancellation and noise reduction ...
Wenjun Chen, Hong Ma, De Yu, Hua Zhang
doaj   +1 more source

SVD Aided Joint Transmitter and Receiver Design for the Uplink of Multiuser Detection Assisted MIMO Systems,

, 2008
A novel singular value decomposition (SVD) aided uplink (UL) multiuser MIMO system is proposed. In contrast to the traditional minimum mean square error (MMSE) or zeroforcing (ZF) multiuser detection (MUD) technique, the proposed method exploits the ...
Yang, Lie-Liang, Liu, W., Hanzo, Lajos
core   +2 more sources

Clutter Elimination and Random-Noise Denoising of GPR Signals Using an SVD Method Based on the Hankel Matrix in the Local Frequency Domain

Sensors, 2018
Ground-penetrating radar (GPR) is a kind of high-frequency electromagnetic detection technology. It is mainly used to locate targets and interfaces in underground structures.
Wenda Bi, Yonghui Zhao, Cong An, Shufan Hu   +3 more
doaj   +1 more source

Bistatic Sea Clutter Suppression Method Based on Compressed Sensing Optimization

Applied Sciences, 2023
In order to reduce the sea clutter interference in the detection of sea surface targets, we propose a bistatic sea clutter suppression method based on compressed sensing optimization in this paper. The proposed method mitigates the interference effect by
Zhangyou Peng, Jingang Liu
doaj   +1 more source

A Vital Signs Fast Detection and Extraction Method of UWB Impulse Radar Based on SVD

Sensors, 2022
The identification of weak vital signs has always been one of the difficulties in the field of life detection. In this paper, a novel vital sign detection and extraction method with high efficiency, high precision, high sensitivity and high signal-to ...
Siyun Liu, Qingjie Qi, Huifeng Cheng, Lifeng Sun, Youxin Zhao, Jiamei Chai   +5 more
doaj   +1 more source

Learning‐Based Soft Robotic Grasping: Recent Progress and Remaining Challenges

Advanced Robotics Research, EarlyView.
This review analyzes learning‐based soft robotic grasping from a pipeline‐oriented perspective, encompassing soft gripper design, multimodal sensing, and learning‐based planning and control. It surveys key neural network architectures and benchmark datasets and identifies critical challenges such as sim‐to‐real transfer, generalization, and continual ...
Arnab Majumder, Jelizaveta Konstantinova, Graham Deacon, Kaspar Althoefer   +3 more
wiley   +1 more source

Longitudinal Awake Mouse Brain Imaging Using Functional Ultrasound and Functional Ultrasound Localization Microscopy

Advanced Science, EarlyView.
Awake longitudinal multimodal ultrasound imaging integrates functional ultrasound (fUS), ultrasound localization microscopy (ULM), and functional ULM (fULM) to characterize cerebrovascular function, microvascular architecture, and flow dynamics within the same animals over time.
Zhe Huang, Yike Wang, Matthew R. Lowerison, Yue Xu, Murong Yi, Bing‐Ze Lin, YiRang Shin, Nathiya Vaithiyalingam Chandra Sekaran, Daniel A. Llano, Pengfei Song   +9 more
wiley   +1 more source

Neighborhood Singular Value Decomposition Filter and Application in Adaptive Beamforming for Coherent Plane-Wave Compounding

Applied Sciences, 2020
Coherent plane-wave compounding (CPWC) is widely used in medical ultrasound imaging, in which plane-waves tilted at multiple angles are used to reconstruct ultrasound images. CPWC helps to achieve a balance between frame rate and image quality.
Shuai Feng, Yadan Wang, Chichao Zheng, Zhihui Han, Hu Peng   +4 more
doaj   +1 more source