Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Xiangtian Zhao"'
Publikováno v:
天地一体化信息网络, Vol 4, Pp 40-47 (2023)
The integration of communication and navigation is an important direction in modern satellite communication and navigation fields.The advancement of low earth orbit (LEO) mega-constellations provides the abundant load, link and terminal resources, as
Externí odkaz:
https://doaj.org/article/3c46ef8cda9e42408c3cb7fd6774e099
Publikováno v:
Aerospace, Vol 11, Iss 2, p 167 (2024)
Remote sensing has become an essential tool for geological exploration, disaster monitoring, emergency rescue, and environmental supervision, while the limited number of remote sensing satellites and ground stations restricts the timeliness of remote
Externí odkaz:
https://doaj.org/article/4e79631c99bb4610999505792d6fc63d
Autor:
Weijie Wang, Guangzhao Qi, Xiangtian Zhao, Yanping Zhang, Rongtao Zhu, Ruopeng Liang, Yuling Sun
Publikováno v:
Frontiers in Oncology, Vol 12 (2022)
ObjectiveLittoral cell angioma (LCA) is currently considered to be a rare splenic tumor with malignant potential. As the epidemiology, pathogenesis, clinical manifestation, treatment, and prognosis remain unclear, the clinical diagnosis and treatment
Externí odkaz:
https://doaj.org/article/1b3a574cd93340ea9988f8384bd1f530
Autor:
Xiangtian Zhao, Yukun Zhou, Yuan Zhang, Lujun Han, Li Mao, Yizhou Yu, Xiuli Li, Mengsu Zeng, Mingliang Wang, Zaiyi Liu
Publikováno v:
Frontiers in Oncology, Vol 11 (2021)
ObjectiveThis study aims to develop and externally validate a contrast-enhanced magnetic resonance imaging (CE-MRI) radiomics-based model for preoperative differentiation between fat-poor angiomyolipoma (fp-AML) and hepatocellular carcinoma (HCC) in
Externí odkaz:
https://doaj.org/article/f6e3e4e31e694978a0e4c2e95f7a4451
Publikováno v:
Complexity, Vol 2020 (2020)
Modern spacecraft are often equipped with large-scale, complex, and lightweight solar arrays whose deployment involves a highly dynamic movement. This paper proposed a novel adaptive proportional-derivative typed fuzzy logic control scheme for the at
Externí odkaz:
https://doaj.org/article/86d7e3ef1715499caaa339ec85beed53
Publikováno v:
Sensors, Vol 21, Iss 24, p 8495 (2021)
This paper investigates the problem of spacecraft relative navigation with respect to an unknown target during the close-proximity operations in the on-orbit service system. The serving spacecraft is equipped with a Time-of-Flight (ToF) camera for ob
Externí odkaz:
https://doaj.org/article/b792aaf600884bb1b3e3ad5c38177a54
Publikováno v:
Sensors, Vol 20, Iss 12, p 3474 (2020)
This paper investigates the problem of using an unmanned aerial vehicle (UAV) to track and hover above an uncooperative target, such as an unvisited area or an object that is newly discovered. A vision-based strategy integrating the metrology and the
Externí odkaz:
https://doaj.org/article/54c53dbb6efb40e79d1363e4771ebb36
Publikováno v:
ISA Transactions. 137:160-174
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b6fddb360ce8af4b5c8fbacd981dbbc
https://doi.org/10.1016/j.isatra.2022.12.018
https://doi.org/10.1016/j.isatra.2022.12.018
Publikováno v:
Chinese Journal of Aeronautics. 35:268-281
This paper addresses a coordinated control problem for Spacecraft Formation Flying (SFF). The distributed followers are required to track and synchronize with the leader spacecraft. By using the feature points in the two-dimensional image space, an i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f25855654ccf5dda15afcc177787a7e4
https://doi.org/10.1016/j.cja.2021.10.020
https://doi.org/10.1016/j.cja.2021.10.020
Autor:
Xiangtian Zhao, Shijie Zhang
Publikováno v:
Journal of Guidance, Control, and Dynamics. 45:830-845
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7b95b7c874b4cf739b02bbb40a25c27c
https://doi.org/10.2514/1.g006325
https://doi.org/10.2514/1.g006325