Results 31 to 40 of about 23,934,500 (209)

Modelling and Assessment of Single-Frequency PPP Time Transfer with BDS-3 B1I and B1C Observations

Remote Sensing, 2022
BDS-3 is now providing global positioning, navigation and timing (PNT) services. BDS-3 has new B1C, B2a and B2b signals compared to BDS-2. This work presents two single-frequency (SF) PPP time transfer models using BDS-3, B1C and B1I observations, and ...
Shengli Wang, Yulong Ge, Xiaolin Meng, Pengli Shen, Kaidi Wang, Fuyang Ke   +5 more
doaj   +1 more source

Time-optimal transfer of coherence [PDF]

Physical Review A, 2012
Published version (with typos in eqs. (25)-(27) corrected)
CARLINI, ALBERTO, Koike T.
openaire   +3 more sources

General expansion of time transfer functions in optical spacetime [PDF]

Physical Review D, 2019
When dealing with highly accurate modeling of time and frequency transfers into arbitrarily moving dielectrics medium, it may be convenient to work with Gordon's optical spacetime metric rather than the usual physical spacetime metric.
A. Bourgoin
semanticscholar   +1 more source

Fiber-optic two-way quantum time transfer with frequency-entangled pulses [PDF]

Physical Review A, 2018
High-precision time transfer is of fundamental interest in physics and metrology. Quantum time transfer technologies with frequency entangled pulses have been proposed for its potential enhancement of the precision and guaranteed security by the ...
Feiyan Hou, R. Quan, R. Dong, Xiao Xiang, Baihong Li, Tao Liu, Xiaoyan Yang, Hao Li, L. You, Zhen Wang, Shougang Zhang   +10 more
semanticscholar   +1 more source

Time Transfer in a 1839-km Telecommunication Fiber Link Demonstrating a Picosecond-Scale Stability

Chinese Physics Letters
An implementation of high-precision time transfer over a 1839-km field fiber loop back link between two provincial capitals of China, Xi’an and Taiyuan, is reported.
Xinxing 新兴 Guo 郭, Bing’an 丙安 Hou 侯, B. Liu 刘, Fan 凡 Yang 杨, Weicheng 维成 Kong 孔, T. Liu 刘, R. Dong 董, S. Zhang 张   +7 more
semanticscholar   +1 more source

Study of Fast and Reliable Time Transfer Methods Using Low Earth Orbit Enhancement

Remote Sensing
The Global Navigation Satellite System (GNSS) can be utilized for long-distance and high-precision time transmission. With the ongoing development of low Earth orbit (LEO) satellites and the rapidly changing geometric relationships between them, the ...
Mingyue Liu, Rui Tu, Qiushi Chen, Qi Li, Junmei Chen, Pengfei Zhang, Xiaochun Lu   +6 more
doaj   +1 more source

Improving the day-boundary discontinuities in BDS-3 carrier-phase time and frequency transfer

Geo-spatial Information Science
The BeiDou global satellite navigation system (BDS) is an important tool for precise remote time and frequency transfer. The current day-boundary discontinuity in the data process of the BDS-3 carrier phase (CP) time transfer limits the exploitation of ...
Pengfei Zhang, Yuanxi Yang, Rui Tu, Yuping Gao, Xiaochun Lu   +4 more
doaj   +1 more source

Atmospheric Turbulence Suppression Algorithm Based on APD Adaptive Gain Control for FSO Links of 5G Floating Base Stations

IEEE Photonics Journal, 2020
The data transmission between 5G floating base stations will be an important application area of the free space optical (FSO) link, but the problem of atmospheric disturbance will directly affect the application effect.
Xiaonan Yu, Lei Xiao, Shuaihe Gao, Yansong Song, Lei Zhang, Haifeng Yao, Tong Wang, Xingchi Chen, Zhiming Jin, Chang Zhou, Shoufeng Tong   +10 more
doaj   +1 more source

Real Time Network FileS Transfer Protocol (RTFTP) [PDF]

Engineering and Technology Journal, 2013
In recent days there is a need to keep environment updated. The paper present flexible and simple protocol for updating file system for personal computer through internet.
Alaa Noori Mazher
doaj   +1 more source

Comparison of immediate versus delayed frozen embryo transfer on reproductive outcome

Clinical and Experimental Obstetrics & Gynecology, 2021
The aim of this study was to compare impact of immediate versus delayed frozen frozen embryo transfer on reproductive outcome in patients undergoing IVF treatment.
Arzu Yurci, Aret Kamar, Nurettin Turktekin, Ramazan Ozyurt   +3 more
doaj   +1 more source