Results 61 to 70 of about 3,347 (296)

A Knowledge-Based Auxiliary Channel STAP for Target Detection in Shipborne HFSWR

Remote Sensing, 2021
The broadened first-order sea clutter in shipborne high frequency surface wave radar (HFSWR), which will mask the targets with low radial velocity, is a kind of classical space–time coupled clutter.
Liang Guo, Weibo Deng, Di Yao, Qiang Yang, Lei Ye, Xin Zhang   +5 more
doaj   +1 more source

Intelligent Sky Guardians (InSkyGuard): An Aerial Robotic Swarm for Autonomous Detection and Entrapment of Rogue Multirotors

Advanced Robotics Research, EarlyView.
Intelligent Sky Guardians (InSkyGuard) is introduced as a four‐drone swarm that autonomously detects, tracks, and safely captures rogue drones using a coordinated net system. Computer vision and leader–follower control architecture enable synchronized enclosure, while integrated failsafes enhance system reliability. Validated through closed‐environment
Joshua Hastings, Levanya Dewanarayana, Iline Shaju, Haider Al‐Wizni, Sampson Marquis, Weicheng Huang, Pooya Sareh   +6 more
wiley   +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

Littoral sea clutter returns at 94GHz [PDF]

, 2014
This paper reports and discusses measurements made of the returns from sea clutter in the littoral at 94GHz using the SAFIRE demonstration radar. These measurements add significantly to the limited data which is available on sea clutter at 94GHz as well ...
A. G. Stove, D. G. Macfarlane, Macfarlane, D.G., D. A. Robertson, Stove, A.G., Robertson, D.A.   +5 more
core   +3 more sources

mRMR-Tri-ConcaveHull Detector for Floating Small Targets in Sea Clutter

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
For the feature-based detector of small targets in sea clutter, on the one hand, the three-dimensional convex hull-based detector deviates from the distribution of sea clutter vectors in the feature space and only combines the information of low ...
Yanling Shi, Yuefeng Hu
doaj   +1 more source

Multi-channel analysis of sea clutter for STAP applications [PDF]

, 2022
S.195-198This paper compares the channel correlation of real multi-channel land data with real multi-channel sea data. Differences are pointed out and decorrelation effects are analyzed for both data sets.
Cerutti- Maori, D., Gracheva, V.
core  

Metasurface‐Enabled Active‐Like Passive Radar

Advanced Science, EarlyView.
A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li, Jiawen Xu, Hanting Zhao, Xu Zhao, Yanjin Chen, Tie Jun Cui, Vincenzo Galdi, Lianlin Li   +7 more
wiley   +1 more source

Correlation feature-based detector for range distributed target in sea clutter

EURASIP Journal on Advances in Signal Processing, 2018
In this paper, a novel correlation feature-based detector is proposed to deal with the challenging problem of detecting a range-distributed target embedded in nonstationary sea clutter.
Ye Yuan, Hong Zhu, Qingping Wang, Wentao Yuan, Naichang Yuan   +4 more
doaj   +1 more source

Modeling of Correlated Complex Sea Clutter Using Unsupervised Phase Retrieval [PDF]

, 2021
The spatially and temporally correlated sea clutter with phase information is valuable for marine radar applications. The major difficulty of coherent sea clutter modeling is the generation of the continuous phases.
Chao Zhong (2247550), Jinshan Ding (20265411), Qinghua Guo (288852), Liwu Wen (20265561)   +3 more
core  

Femtosecond‐Laser‐Induced Physical Unclonable Random Maze Structure for Storage‐Free Encryption

Advanced Science, EarlyView.
Femtosecond‐laser‐induced gold random maze structures serve as multimodal physical unclonable functions for storage‐free encryption. Their stochastic optical, electrical, and Raman responses are generated by plasmon‐assisted Marangoni formation and converted into AES‐compatible keys without permanent secret‐key storage, offering a portable route toward
Shiru Jiang, Hongliang Li, Shengjie Ma, Sang‐Shin Lee, Lei Wang, Mengyun Hu, Heping Zeng   +6 more
wiley   +1 more source