Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Guoxiang Ai"'
Publikováno v:
Sensors, Vol 22, Iss 11, p 4210 (2022)
In satellite positioning systems, optimizing navigation satellite constellation and reducing the observation residuals are usually adopted to improve positioning precision and accuracy of the receiver. This paper presents a method to improve position
Externí odkaz:
https://doaj.org/article/dc50bca19ea749859f822146dc6283c6
Publikováno v:
Artificial Satellites. 57:185-193
The dilution of precision (DOP) in satellite navigation system provides a simple characterization of the user–satellite geometry and a quantitative assessment of the positioning constellation configuration. The essential idea of physical augmentati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffef2adec3b748ddbfe58a0da874913e
https://doi.org/10.2478/arsa-2022-0009
https://doi.org/10.2478/arsa-2022-0009
Autor:
Guoxiang, Ai
Publikováno v:
Science, 2001 Jul . 293(5528), 214-214.
Externí odkaz:
https://www.jstor.org/stable/3084228
Autor:
Ji Guo, Guanyi Ma, Xiaohui Li, Guoxiang Ai, Yujing Bian, Zhigang Li, Ma Lihua, Huli Shi, Haitao Wu
Publikováno v:
Navigation. 58:59-68
The Chinese Area Positioning System (CAPS) uses communication carriers at C-band for navigation services and all the navigation and ranging signals are generated at ground stations instead of onboard satellites. The C-band communication downlink freq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4aa90fda5c972c88c874355d9a102d81
https://doi.org/10.1002/j.2161-4296.2011.tb01792.x
https://doi.org/10.1002/j.2161-4296.2011.tb01792.x
Publikováno v:
Science in China Series G: Physics, Mechanics and Astronomy. 52:323-327
Retired geosynchronous (GEO) communication satellites affect the GEO orbit environment in outer space. According to the new concept of modern design, the authors propose creatively a method of reusing retired GEO communication satellites, through adj
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::44d7da852788c670f860aa2f6c2384b4
https://doi.org/10.1007/s11433-009-0055-8
https://doi.org/10.1007/s11433-009-0055-8
Publikováno v:
Science in China Series G: Physics, Mechanics and Astronomy. 52:423-433
This paper briefly introduces the maneuverable feature of the slightly inclined geosynchronous orbit (SIGSO) satellites under a new control model degraded from the geosynchronous orbit (GEO) communication satellites which will retire as most of the f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8ef07688fcc5defd7c83ffb64392860
https://doi.org/10.1007/s11433-009-0058-5
https://doi.org/10.1007/s11433-009-0058-5
Autor:
Fenglei Wu, ChuGang Feng, RongChuan Qiao, Ji Guo, Huli Shi, Guoxiang Ai, Zhigang Li, Xuhai Yang
Publikováno v:
Science in China Series G: Physics, Mechanics and Astronomy. 52:333-338
A geostationary (GEO) satellite may serve as a navigation satellite, but there is a problem that maneuvers frequently occur and the forces are difficult to model. Based on the technique of determining satellite orbits by transfer, a predicted orbit w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bed5a6610c1fc839930fa07815723e3
https://doi.org/10.1007/s11433-009-0066-5
https://doi.org/10.1007/s11433-009-0066-5
Publikováno v:
Science in China Series G: Physics, Mechanics and Astronomy. 52:472-488
It is a long dream to realize the communication and navigation functionality in a satellite system in the world. This paper introduces how to establish the system, a positioning system based on communication satellites called Chinese Area Positioning
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d123c7097d8daed27a55d1c7ef869025
https://doi.org/10.1007/s11433-009-0065-6
https://doi.org/10.1007/s11433-009-0065-6
Publikováno v:
Science in China Series G: Physics, Mechanics and Astronomy. 52:458-471
Based on the idea of transmitting the satellite navigation and positioning system, taking the distribution and variation of the Position Dilution of Precision factor (PDOP), which is closely related with the precision of navigation and positioning, w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9613d1a65773411aa2ecf31b8a8e743
https://doi.org/10.1007/s11433-009-0063-8
https://doi.org/10.1007/s11433-009-0063-8
Publikováno v:
Science in China Series G: Physics, Mechanics and Astronomy. 52:384-392
The original idea of a new method for determination of satellite orbits by transfer is from Two-Way Satellite Time and Frequency Transfer (TWSTFT). The original method is called “determination of satellite orbit by transfer”. The method is not on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::806ddc960815d748c5cbcd0bc1260821
https://doi.org/10.1007/s11433-009-0057-6
https://doi.org/10.1007/s11433-009-0057-6