Results 21 to 30 of about 3,397 (198)

Rao and Wald Tests in Nonzero-Mean Non–Gaussian Sea Clutter

Remote Sensing
The non-Gaussian nature of radar-observed clutter echoes induces performance degradation in the context of remote sensing target detection when using conventional Gaussian detectors. To enhance target detection performance, this study addresses the issue
Haoqi Wu, Hongzhi Guo, Zhihang Wang, Zishu He   +3 more
doaj   +1 more source

Characteristic Description and Statistical Model-Based Method for Sea Clutter Modeling

Remote Sensing
The modeling and analysis of sea clutter are of great significance in radar target detection studies in marine environments. Sea clutter typically exhibits non-Gaussian characteristics and spatiotemporal correlations, posing challenges for modeling ...
Huafeng He, Zhen Li, Xi Zhang, Jianguang Jia, Yaomin He, Yongquan You   +5 more
doaj   +1 more source

Performance evaluation of CA-, GO- and SO-CFAR processors in a non-centered Lévy-distributed clutter

Majlesi Journal of Electrical Engineering
Constant false alarm rate (CFAR) processors are critical for radar reliable target detection in radar systems. Traditional CFAR designs often assume Gaussian clutter, which may not reflect real-world conditions.
El-Hadi Meftah, Abdelhalim Rabehi, Slimane Benmahmoud   +2 more
doaj   +1 more source

CRLBs for Location and Velocity Estimation for MIMO Radars in CES-Distributed Clutter

Frontiers in Signal Processing, 2022
In this article, we investigate the problem of jointly estimating target location and velocity for widely separated multiple-input multiple-output (MIMO) radar operating in correlated non-Gaussian clutter, modeled by a complex elliptically symmetric (CES)
Neda Rojhani, Maria Sabrina Greco, Fulvio Gini   +2 more
doaj   +1 more source

Revolutionising Agricultural Sustainability: New ‘Furrow Tillage’ can Mitigate Short‐Term Soil‐to‐Atmosphere CO2 Flux and Promote Soil‐Plant‐Microbe Health

Advanced Science, EarlyView.
Furrow tillage resolves the conventional‐vs.‐no‐tillage trade‐off by simultaneously cutting CO2 efflux to 2.0–3.0 g C m−2 d−1 and unlocking high nutrient availability for the rice rhizosphere. This scalable agronomic solution strengthens soil health, enhances plant physiology, reshapes microbial metabolism, and shifts paddy systems toward a net ...
Arnab Majumdar, Munish Kumar Upadhyay, Argha Ghosh, Rakesh Biswas, Ioly Kotta Loizou, Martin Buck, Mark Tibbett, Biswajit Giri, Debojyoti Moulick, Manoj Kumar Jaiswal, Tarit Roychowdhury   +10 more
wiley   +1 more source

MIMO radar detection of targets in compound-Gaussian clutter

2008 42nd Asilomar Conference on Signals, Systems and Computers, 2008
Multiple-input multiple-output (MIMO) radars with widely-separated transmitters and receivers are useful to discriminate a target from clutter using the spatial diversity of the scatterers in the illuminated scene. We consider the detection of targets in compound-Gaussian clutter fitting for example scatterers with heavy-tailed distributions for high ...
Murat Akçakaya, Martin Hurtado, Arye Nehorai   +2 more
  +7 more sources

Terahertz Channel Modeling, Estimation and Localization in RIS‐Assisted Systems

Advanced Electronic Materials, EarlyView.
Reconfigurable intelligent surfaces have become a recent intensive research focus. Based on practical applications, channel strategies for RIS‐assisted terahertz wireless communication systems are categorized into three different types: channel modeling, channel estimation, and channel localization.
Hongjing Wang, Weipeng Wang, Xuan Cong, Shiyu Wang, Gao Li, Sen Gong, Lin Huang, Hongxin Zeng, Yaxin Zhang, Ziqiang Yang   +9 more
wiley   +1 more source

Random Finite Set-based Extended Target Tracking Method with Amplitude Information

Leida xuebao, 2020
The random finite set-based extended target tracking methods generally partition measurements by spatial information. It is possible to place clutter measurements into target cells in a dense clutter environment resulting in degradation of tracking ...
Chao LIU, Jinping SUN, Xiaolong CHEN, Zhiguo ZHANG   +3 more
doaj   +1 more source

3D target tracking and shape reconstruction in clutter using Gaussian process and point completion network

IET Radar, Sonar & Navigation, 2023
Existing problems for 3D extended target tracking and contour reconstruction under clutter environment are thoroughly investigated in this article. Due to the sparsity of available point cloud data and interference from clutter, the shape completion ...
Hongge Mao, Xiaojun Yang
doaj   +1 more source

People Counting and Positioning Using Low‐Resolution Infrared Images for FeFET‐Based In‐Memory Computing

Advanced Electronic Materials, EarlyView.
In this work, low‐resolution infrared imaging is combined with a 28 nm FeFET IMC architecture to enable compact, energy‐efficient edge inference. MLC FeFET devices are experimentally characterized, and controlled multi‐level current accumulation is validated at crossbar array level.
Alptekin Vardar, Li Zhang, Alexander Rehmer, Marc Lupp, Subhashree Baskaran, Osama Abdelaal, Franz Müller, Nandakishor Yadav, Bing Li, Thomas Kämpfe   +9 more
wiley   +1 more source