Results 41 to 50 of about 580,865 (313)

A Novel Intelligent Ship Detection Method Based on Attention Mechanism Feature Enhancement

Journal of Marine Science and Engineering, 2023
The intelligent perception ability of the close-range navigation environment is the basis of autonomous decision-making and control of unmanned ships. In order to realize real-time perception of the close-range environment of unmanned ships, an enhanced ...
Yingdong Ye, Rong Zhen, Zheping Shao, Jiacai Pan, Yubing Lin   +4 more
doaj   +1 more source

Torchlight Navigation

2010 20th International Conference on Pattern Recognition, 2010
A common computer vision task is navigation and mapping. Many indoor navigation tasks require depth knowledge of flat, unstructured surfaces (walls, floor, ceiling). With passive illumination only, this is an ill-posed problem. Inspired by small children using a torchlight, we use a spotlight for active illumination.
Michael Felsberg, Fredrik Larsson, Han Wang 0001, Anders Ynnerman, Thomas B. Schön   +4 more
openaire   +4 more sources

UnmannedSim : urban and multi-agent navigation network-enabled drones simulator for path planning and localization research [PDF]

, 2022
34th International Technical Meeting of the Satellite Division of the Institute of Navigation (ION GNSS+ 2021), September 20-24, 2021, St.
Shiu, WCL, Su, M, Hsu, LT, Ahad, S, Huang, XY, Lee, MJL, Sajid, DMZ   +6 more
core   +1 more source

Impacts of global navigation satellite system jamming on aviation [PDF]

Global navigation satellite systems have enabled significant improvements in aeronautical navigation. However, in recent years, a growing number of interference events have been reported by flight crews. In this paper, we first identify such events using
Olive, Xavier, Felux, Michael, Waltert, Manuel, Figuet, Benoit, Fol, Patric, Waltert,, Manuel   +5 more
core   +1 more source

A method for evaluating microwaves entanglement efficiency based on second-order correlation detection

Results in Physics, 2019
A method for evaluating the entanglement efficiency of dual-path entangled microwaves based on second-order correlation detection is proposed in this paper.
Tianli Wei, Dewei Wu, Xiang Li, Qiang Miao, Junwen Luo, Chunyan Yang   +5 more
doaj   +1 more source

Performance analysis of the BDSBAS-B1C message in trial operation stage

Scientific Reports, 2023
BeiDou Satellite-based Augmentation System (BDSBAS) has come into the trial operation stage since July, 2020. To evaluate the characteristic of the augmentation message in BDSBAS-B1C signal, the effectiveness of the message content was firstly analyzed ...
Jie Xin, Rui Guo, Jinping Chen, Yijun Tian, Yueling Cao, Yuchen Liu, Xiaojie Li, Dongxia Wang, Hongliang Cai   +8 more
doaj   +1 more source

Enhanced microwave-optical conversion via ancillary electro-mechanical coupling

Results in Physics, 2022
Converting signals from the microwave to the optical domain has attracted great attention due to its potential applications in the field of quantum networks.
Tianli Wei, Dewei Wu, Qiang Miao, Chunyan Yang   +3 more
doaj   +1 more source

SMASH navigators [PDF]

Magnetic Resonance in Medicine, 2003
AbstractThe additional data acquired when using multiple receiver coils is commonly used to improve SNR or reduce acquisition times. It may also be used to remove image artifacts by selectively replacing corrupt data. In the present study, a correction scheme is presented based on simultaneous acquisition of spatial harmonics (SMASH) that enables ...
Bydder, M, Atkinson, D, Larkman, D J, Hill, D L G, Hajnal, J V   +4 more
openaire   +3 more sources

A radio navigation angle measurement method with entangled microwave signals

AIP Advances, 2018
There are the common problems of limited precision, low anti-interference ability and poor signal detection performance in the classical radio navigation angle measurement systems.
X. Li, D. W. Wu, T. L. Wei, Q. Miao, H. N. Zhu, Ch. Y. Yang   +5 more
doaj   +1 more source

Social Functioning Within the First Years After Pediatric Brain Tumor Diagnosis and the Relationship With Family Psychosocial Risk

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Survivors of pediatric brain tumors (PBTs) can experience long‐term social difficulties, impacting quality of life. Beyond medical and environmental factors, family psychosocial risk may play a role in social outcomes by shaping the caregiving environment and may provide intervention options.
Renske H. Houben, Marisa H. Huisman, Martha A. Grootenhuis, Femke K. Aarsen, Marita Partanen   +4 more
wiley   +1 more source