Results 91 to 100 of about 1,759,726 (286)

Detection in sea clutter using sparse signal separation

, 2022
S.4384-4394Radar detection of small maritime targets can be difficult due to the dynamic motion of the sea. Airborne maritime surveillance platforms are also increasingly required to operate in environments where the sea clutter is strong with persistent
Rosenberg, L., Duk, V., Ng, B.W.-H.
core   +1 more source

Vision‐Based Tactile Finger Integrating Fingerpad and Nail Sensing for Robotic Manipulation

Advanced Intelligent Systems, EarlyView.
This vision‐based tactile finger captures nail force and fingerpad force, contact position, and in‐plane orientation with one internal camera. An external camera recognizes the target and presets finger inclination from object height. The compact dual‐sensing design supports tactile‐guided table contact and reliable grasping of objects ranging from ...
Hao Zhou, Kazuhiro Shimonomura
wiley   +1 more source

Research on Sea Clutter Simulation Method Based on Deep Cognition of Characteristic Parameters

Remote Sensing
The development of radar systems requires extensive testing. However, field experiments are costly and time-consuming. Sea clutter simulation is of great significance for evaluating radar system detection performance.
Peng Zeng, Yushi Zhang, Xiaoyun Xia, Jinpeng Zhang, Pengbo Du, Zhiheng Hua, Shuhan Li   +6 more
doaj   +1 more source

Mitigation of the Effects of Unknown Sea Clutter Statistics by Using Radial Basis Function Network [PDF]

Radioengineering, 2020
In this paper, we investigate feasibility of employing Radial Basis Function (RBF) network into non-coherent detection process, for detection of targets embedded in sea clutter of unknown statistics. We particularly have in mind Croatian part of Adriatic
B. Vondra, D. Bonefacić
doaj  

3D Closed‐Loop Navigation of Magnetic Microswimmers Using Vision‐Derived Depth Feedback

Advanced Intelligent Systems, EarlyView.
A planar magnetic microswimmer is navigated in three dimensions under a standard microscope. Image defocus supplies a real‐time depth cue, and model‐predictive control with A* planning steers the body on surfaces and in free swimming. Axial position is regulated by propulsion alone, without magnetic field gradients or extra cameras.
Yasin Cagatay Duygu, Sangwon Lee, Min Jun Kim   +2 more
wiley   +1 more source

Joint Prediction of Sea Clutter Amplitude Distribution Based on a One-Dimensional Convolutional Neural Network with Multi-Task Learning

Remote Sensing
Accurate modeling of sea clutter amplitude distribution plays a crucial role in enhancing the performance of marine radar. Due to variations in radar system parameters and oceanic environmental factors, sea clutter amplitude distribution exhibits ...
Longshuai Wang, Liwen Ma, Tao Wu, Jiaji Wu, Xiang Luo   +4 more
doaj   +1 more source

Autonomous Charging and Battery Swapping for Unmanned Aerial Vehicles: A Review

Advanced Intelligent Systems, EarlyView.
This review evaluates major autonomous charging and battery swapping methods for unmanned aerial vehicles (UAVs) against a single question: how close each is to sustained unattended operation. Rather than ranking them by charging performance, it identifies the limitation that most restricts each method, and briefly outlines the supporting technologies ...
Zelin Wu, Yuanwen Zhang, Xiangdong Meng, Guangyu Zhang, Huiwen Zhang, Yuquan Leng   +5 more
wiley   +1 more source

Analysis of radar sea clutter data acquired during the MARLENE measurement campaign

, 2016
International audienceMaritime environment, and in particular the sea clutter, has a significant impact on the detection efficiency. Therefore the physical properties of the radar sea clutter must be well mastered.
Gallus, Michael, Poisson, Jean-Baptiste, Biegel, Gregor, Marcellin, Jean-Paul, Ulland, Andreas, Boulanger, Xavier, Böhler, Christian Onno, Hurtaud, Yvonick, Danklmayer, Andreas, Fabbro, Vincent, Castanet, Laurent, Förster, Jörg, Brehm, Thorsten   +12 more
core   +2 more sources

Maritime Infrared Small Target Detection Based on the Appearance Stable Isotropy Measure in Heavy Sea Clutter Environments. [PDF]

Sensors (Basel), 2023
Wang F, Qian W, Qian Y, Ma C, Zhang H, Wang J, Wan M, Ren K.   +7 more
europepmc   +1 more source

A Vacuum‐Suction and Rotate End Effector for Robotic Apple Fruitlet Thinning: Comparative Development, Integrated Field Evaluation, and Preliminary Harvesting

Advanced Intelligent Systems, EarlyView.
Robotic apple thinning is constrained by a single field season confined to a few weeks each year. An efficient design process screens four detachment concepts off‐season using an artificial fruitlet structure, with field trials identifying vacuum suction and rotation as the most effective approach.
Rahul Jangali, Ben McGuinness, Hin Lim, Chi Kit Au, Henry Williams, Ans H. Qureshi, David Smith, Bruce A. MacDonald, Mike Duke, Abozar Nasirahmadi   +9 more
wiley   +1 more source