Results 61 to 70 of about 9,694,468 (324)

Jitter-Caused Clutter and Drift-Caused Clutter of Staring Infrared Sensor in Geostationary Orbit [PDF]

, 2023
For staring infrared sensors in geostationary orbit, the clutter caused by the high-frequency jitter and low-frequency drift of the sensor line-of-sight (LOS) is the impact of background features, sensor parameters, LOS motion characteristics, and ...
Feng Zhou, Boyuan Bian, Xiaoman Li
core   +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

Multiscale Modeling and Simulation of Clutter in ISAR Imaging [PDF]

, 2020
Clutter is common in applications of radar imaging and can adversely impact target imaging by contributing scattered energy that is not accounted for in target signal models.
Mitchell, Jon
core   +1 more source

Reduced-Dimension STAP Algorithm Based on Local Space Time Coupling Characteristics

Journal of Marine Science and Engineering
Patchy ionospheric clutter in high frequency surface wave radar (HFSWR) exhibits significant non-uniformity and local space time coupling characteristics. However, the best channel method (BCM) algorithm based on the maximum output signal-to-clutter-plus-
Ruilong Ren, Weibo Deng, Fulin Su, Xin Zhang   +3 more
doaj   +1 more source

An Ionospheric Es Layer Clutter Model and Suppression in HF Surfacewave Radar

International Journal of Antennas and Propagation, 2013
This paper based on a fast implemented multiphase screen method using DFT puts forward an ionospheric Es layer clutter model and uses the newly developed dimensionality reduction space-time adaptive processing- (STAP-) JDL algorithm to suppress Es layer ...
Yajun Li, Yinsheng Wei, Rongqing Xu, Zhuoqun Wang, Tianqi Chu   +4 more
doaj   +1 more source

A Range-ambiguous Clutter Suppression Method for MIMO Bistatic Airborne Radar

Leida xuebao, 2018
The ground clutter of sidelooking Multiple-Input Multiple-Output (MIMO) bistatic radar has severe problems of range-dependence and clutter spectrum spreading.
Wang Yuzhuo, Zhu Shengqi, Xu Jingwei
doaj   +1 more source

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

Vertical variation in flight activity of the lesser short-tailed bat in podocarp and beech forests, Central North Island, New Zealand [PDF]

, 2013
Designing robust monitoring programmes for cryptic species is particularly difficult. Not detecting a species does not necessarily mean that it is absent from the sampling area. A conclusion of absence made in error can lead to misguided inferences about
Molles, L, Molles, Laura E., Scrimgeour, Jessica, Waas, Joseph R., Waas, J, Scrimgeour, J   +5 more
core  

Speech characteristics that differentiate stuttering and cluttering in Japanese speakers

Frontiers in Psychology
BackgroundCluttering is a speech disorder distinct from stuttering. Despite this distinction, there is no established method to clearly differentiate the two disorders. This study aimed to use objective criteria to differentiate cluttering from stuttering in Japanese speakers.MethodsParticipants were 32 consecutive native-Japanese speakers who visited ...
Shuta Tomisato, Takanori Mori, Kazumi Asano, Daichi Iimura, Yasuto Yada, Saburo Takahashi, Koichiro Wasano, Koichiro Wasano, Takeyuki Kono, Hiroyuki Ozawa   +9 more
openaire   +3 more sources