Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Zhen-Wei Zhao"'
Publikováno v:
Tongxin xuebao, Vol 37, Pp 81-87 (2016)
The present worst-month prediction model,however,cannot reflect the me ical characteristics of tro-poscatter propagation accurately.Hence,based on the worst-month prediction models introduced in the recommendation ITU-R P.617-3 and ITU-R P.841-4 resp
Externí odkaz:
https://doaj.org/article/fabd68551bdf4f7fa7f1f2706cd1c9c3
Publikováno v:
IEEE Transactions on Antennas and Propagation. 70:2873-2883
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a5c088a27158ac55ce6ecf964634232
https://doi.org/10.1109/tap.2021.3098582
https://doi.org/10.1109/tap.2021.3098582
Publikováno v:
Rare Metals. 41:1403-1405
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bec20ea57781f397dc1b8702ea1e473
https://doi.org/10.1007/s12598-021-01906-x
https://doi.org/10.1007/s12598-021-01906-x
Publikováno v:
Multimedia Tools and Applications. 79:8767-8780
THz wave has advantages in targets detecting and imaging, however, the severe atmospheric attenuation limits its application range. To perform a higher transmittance through clouds and higher resolution, upper troposphere should be considered to be t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::163f120974d2c9dd0a78805892c2d0af
https://doi.org/10.1007/s11042-018-6803-x
https://doi.org/10.1007/s11042-018-6803-x
Autor:
Changsheng Lu, Zhensen Wu, Phunsak Thiennviboon, Zhaofeng Lv, Xin Zhang, Zhen-Wei Zhao, Leke Lin
Publikováno v:
IEEE Transactions on Antennas and Propagation. 66:5432-5442
In the Earth-space link communication system design, rain attenuation must be considered, especially with a frequency above 10 GHz. Therefore, a reliable rain attenuation prediction model is necessary for the design of these systems. Recently, two an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c496028faa1a282d1617b2a9dfcd5f13
https://doi.org/10.1109/tap.2018.2854181
https://doi.org/10.1109/tap.2018.2854181
Publikováno v:
IET Microwaves, Antennas & Propagation. 12:1420-1427
Due to atmospheric absorption, the signal attenuation must be considered when designing communication links in the terahertz (THz) band. The equivalent height described in International Telecommunication Union Recommendation (Rec. ITU)-R P.676 can be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a9289c8fe33891e9bb3810d82a1f1f40
https://doi.org/10.1049/iet-map.2017.1073
https://doi.org/10.1049/iet-map.2017.1073
Publikováno v:
IET Microwaves, Antennas & Propagation. 10:686-691
In this study, a method to choose the maximum calculation height and the maximum propagation angle of the split-step troposcatter wide-angle parabolic equation (TWAPE) method is presented. The method is implemented with the height and the scatter ang
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dda9d42a6c5068456c9f91be98446d50
https://doi.org/10.1049/iet-map.2015.0293
https://doi.org/10.1049/iet-map.2015.0293
Publikováno v:
IEEE Transactions on Antennas and Propagation. 64:1071-1079
In this article, a novel semiempirical average annual troposcatter transmission loss prediction model is presented. The model is generated by optimizing the correlation coefficients of propagation path conditions utilizing the modern optimization alg
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e29ab8ae8c9d296c1dc163b416e685a9
https://doi.org/10.1109/tap.2016.2515125
https://doi.org/10.1109/tap.2016.2515125
Publikováno v:
2017 International Symposium on Antennas and Propagation (ISAP).
Rain rate statistics is an essential part of rain attenuation prediction models. Mostly, the 1-min integration time is required for the rain rate statistics and, if it is not available, the methods in the Rec. ITU-R P.837 are commonly used to convert
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53cd7cca5f76e85226ad5fe8a7c83a62
https://doi.org/10.1109/isanp.2017.8228968
https://doi.org/10.1109/isanp.2017.8228968
Autor:
Liang Wang1, Zhen-wei Zhao1, Huai-zhou Qin1, Wen-tao Li2, Hua Zhang1, Jian-hai Zong1, Jian-Ping Deng1, Guo-dong Gao1 gguodong@fmmu.edu.cn
Publikováno v:
Neurology India. Jan-Mar2008, Vol. 56 Issue 1, p36-41. 6p. 1 Black and White Photograph, 3 Charts.