Zobrazeno 1 - 10
of 92
pro vyhledávání: '"Jung-ho Cho"'
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 30, Iss 1, Pp 33-41 (2013)
Various features of the existing perturbations in the Earth’s spin rotation are investigated for the recent and most reliable data by spectral analysis, filtering, and comparison with idealized model. First, theory of Earth’s spin rotational pert
Externí odkaz:
https://doaj.org/article/cf10dcfd2e5745498e503f4ab60c3052
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 26, Iss 4, Pp 499-510 (2009)
In this paper, relative orbit of Low Earth Orbit satellites is determined using only GPS measurements and the effects of Equatorial Spread-F (ESF), that is one of biggest ionospheric irregularities, are investigated. First, relative orbit determiat
Externí odkaz:
https://doaj.org/article/2c93e72fa4e743f2a6f8eb46be3eac26
Autor:
Jung Hyun Jo, Do-Hyeung Je, Sungki Cho, Byung Kyu Choi, Jeongho Baek, Daekyu Lee, Hyunsoo Chung, Hyung-Chul Lim, Jung-Ho Cho, Woo-Kyoung Lee, Sung-Wook Jung, Jong-Uk Park, Nammi Choe
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 25, Iss 1, Pp 43-52 (2008)
As the next generation of global satellite navigation system, the Galileo project is about to witness an initial orbit validation stage as the successful test of navigation message transmission from Giove-A in 2007. The Space Geodesy division and the
Externí odkaz:
https://doaj.org/article/4c3d9f4933c34be7910790b7b97cd111
Autor:
Sungho Lee, Jeongho Baek, Bongkon Moon, Ho Jin, Jung-Ho Cho, Sang-Mok Cha, Seounghyun Cho, Yungsik Park, In-Soo Yuk, Uk-Won Nam, Soojong Park
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 24, Iss 4, Pp 339-348 (2007)
KASINICS (Korea Astronomy and Space Science Institute Near Infrared Camera System) is equipped with a InSb array which can observe 1--5~μm bands in near-infrared. The absorption and emission by telluric water vapor becomes serious in the bands longe
Externí odkaz:
https://doaj.org/article/9d5f92030a8a489abc2d9ea56a234a3b
Autor:
Woo-Kyoung Lee, Jong-Kyun Chung, Sungki Cho, Jong-Uk Park, Jung-Ho Cho, Jae-Cheol Yoon, Jin Ho Lee, Yong-Sik Chun, Sang-Ryul Lee
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 24, Iss 4, Pp 297-308 (2007)
The AOPOD (Atmosphere Occultation and Precision Orbit Determination) system, the secondary payload of KOMPSAT (KOrea Multi-Purpose SATellite)-5 scheduled to be launched in 2010, shall provide GPS radio occultation data. In this paper, we simulated th
Externí odkaz:
https://doaj.org/article/3b8bfb02eafe4ab58bc4ab7b51531125
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 23, Iss 4, Pp 337-344 (2006)
KVN simulation, which is focused on evaluating the impacts of KVN to geodetic VLBI network, was performed. The KVN is under construction with three radio telescopes VLBI system for radio astronomy and space geodesy. To distinguish the impacts of KVN
Externí odkaz:
https://doaj.org/article/38654cf1e22b4f2682df5fac0228c3df
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 23, Iss 4, Pp 385-396 (2006)
The International GNSS Service (IGS) has prepared for a transition from the relative phase center variation (PCV) to the absolute PCV, because the terrestrial scale problem of the absolute PCV was resolved by estimating the PCV of the GPS satellites.
Externí odkaz:
https://doaj.org/article/9e930f64c94349459738ae755d5fa9bf
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 19, Iss 4, Pp 385-394 (2002)
Satellite laser ranging is a technique for precisely measuring the range between a laser station and a satellite that is equipped with retro-reflectors. SLR technique was first used for Beacon-B satellite in 1964 with the ranging accuracy of meter le
Externí odkaz:
https://doaj.org/article/94e03605fa5d4ef09d929adfd1d79e7a
Publikováno v:
Journal of Astronomy and Space Sciences, Vol 18, Iss 2, Pp 129-136 (2001)
The accuracy of GPS applications is heavily dependent on the satellite ephemeris and earth orientation parameter. Specially applications like as the real time monitoring of troposphere and ionosphere require real time or predicted ephemeris and earth
Externí odkaz:
https://doaj.org/article/3da84301d28744518391f7e5c72d9b5b
Publikováno v:
International Journal of Precision Engineering and Manufacturing. 23:453-458
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d35b418e04bb72006519471c8529b202
https://doi.org/10.1007/s12541-022-00632-3
https://doi.org/10.1007/s12541-022-00632-3