[논문]Satellite Laser Ranging System at Geochang Station

Lim, Hyung-Chul; Sung, Ki-Pyoung; Yu, Sung-Yeol; Choi, Mansoo; Park, Eunseo; Park, Jong-Uk; Choi, Chul-Sung; Kim, Simon

doi:10.5140/jass.2018.35.4.253

Satellite Laser Ranging System at Geochang Station 원문보기

Journal of astronomy and space sciences, v.35 no.4, 2018년, pp.253 - 261

Lim, Hyung-Chul (Korea Astronomy and Space Science Institute) , Sung, Ki-Pyoung (Korea Astronomy and Space Science Institute) , Yu, Sung-Yeol (Korea Astronomy and Space Science Institute) , Choi, Mansoo (Korea Astronomy and Space Science Institute) , Park, Eunseo (Korea Astronomy and Space Science Institute) , Park, Jong-Uk (Korea Astronomy and Space Science Institute) , Choi, Chul-Sung (Korea Astronomy and Space Science Institute) , Kim, Simon (Korea Astronomy and Space Science Institute)

Abstract ▼ AI-Helper

Korea Astronomy and Space Science Institute (KASI) has been developing the space optical and laser tracking (SOLT) system for space geodesy, space situational awareness, and Korean space missions. The SOLT system comprises satellite laser ranging (SLR), adaptive optics (AO), and debris laser tracking (DLT) systems, which share numerous subsystems, such as an optical telescope and tracking mount. It is designed to be capable of laser ranging up to geosynchronous Earth orbit satellites with a laser retro-reflector array, space objects imaging brighter than magnitude 10, and laser tracking low Earth orbit space debris of uncooperative targets. For the realization of multiple functions in a novel configuration, the SOLT system employs a switching mirror that is installed inside the telescope pedestal and feeds the beam path to each system. The SLR and AO systems have already been established at the Geochang station, whereas the DLT system is currently under development and the AO system is being prepared for testing. In this study, the design and development of the SOLT system are addressed and the SLR data quality is evaluated compared to the International Laser Ranging Service (ILRS) tracking stations in terms of single-shot ranging precision. The analysis results indicate that the SLR system has a good ranging performance, to a few millimeters precision. Therefore, it is expected that the SLR system will not only play an important role as a member of the ILRS tracking network, but also contribute to future Korean space missions.

주제어

표/그림 (13)

그림 Fig. 1. Confguration of SOLT system.
그림 Fig. 2. Software architecture of operation system.
표 Table 1. Specifcations of SOLT system
그림 Fig. 3. Block diagram of SLR timing system.
그림 Fig. 4. Optical schematic of AO module.
그림 Fig. 5. SOLT system established at Geochang station.
그림 Fig. 6. Starlette observation results (August 2, 2018).
그림 Fig. 7. Ajisai observation results (August 3, 2018).
그림 Fig. 8. Lageos-2 observation results (August 2, 2018).
그림 Fig. 9. Galileo 104 observation results (August 3, 2018).
그림 Fig. 10. Compass-G1 observation results (October 8, 2018).
그림 Fig. 11. Ground target observation results (August 3, 2018).
표 Table 2. Specifcations and SLR data quality for laser ranging targets

AI 본문요약
AI-Helper

* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.

제안 방법

Especially the SLR system will participate in the International Laser Ranging Service (ILRS) tracking network after its ranging performance is evaluated. In this study, we address the design and development of the SOLT system and the SLR system performance is evaluated compared with those of the ILRS tracking stations in terms of single-shot ranging precision. It is demonstrated that the SLR system is capable of laser ranging up to GEO satellites with LRAs and shows a good ranging performance to a few millimeters precision.
The three systems share numerous subsystems, such as the optical telescope and tracking mount, because they have the same optical path from the primary mirror to the switching mirror. It is designed to be capable of laser ranging up to GEO satellites with an LRA, space objects imaging brighter than magnitude 10, and laser tracking to LEO space debris without an LRA. These systems are operated independently, not simultaneously, by employing a switching mirror feeding the beam path to each system.
The design and development of the SOLT system were addressed in this study and the representative observations of the SLR system were both discussed and analyzed for the performance evaluation. The SLR data quality of the ILRS tracking station was evaluated in terms of single-shot precision for the ground target, and Starlette and Lageos satellites.
2017). To improve the OP precision of space objects, the advanced model should consider not only the ranging measurement, but also the shape, structure, and orientation information available from the characterization and identification based on the AO high-resolution imagery. When a laser propagates through the atmosphere, it suffers from the detrimental effects of atmospheric turbulence that results in the focused spot in space being broadened and distorted (Gebhardt 1976).

대상 데이터

The SLR module comprises a laser, Tx/Rx optics, and a timing system. The SLR laser is based on a mode-locked Nd:YAG laser system, which has a primary wavelength of 1,064 nm and a secondary wavelength of 532 nm converted by a second harmonic generator for satellite ranging.
1, the SOLT system comprises the SLR, AO, and DLT systems that include a common module and a dedicated module (SLR, AO, or DLT module). The SLR module was developed in collaboration with EOS Space Systems Ltd. in Australia, and the AO module with the Australian National University. The SLR system has two categories in terms of the optical path: monostatic (or common Coudé) system, and bistatic system.
2015), and has been also developing the space optical laser tracking (SOLT) system at the Geochang station for space geodesy, SSA and Korean space missions. The SOLT system consists of the SLR, AO and debris laser tracking (DLT) systems which are composed of a dedicated module and a common module. The three systems are operated independently but not simultaneously by rotating the switching mirror inside the telescope pedestal which feeds the beam path to each system.
The common module comprises an optical telescope, tracking mount, weather station, aircraft detection radar, and operating system. The optical telescope is designed as a confocal paraboloid beam expander configuration with a 100 cm clear aperture primary mirror (M1) having a focal ratio of f/1.5. The M1 support design is a passive 9-point axial whiffletree, and the lateral support system utilizes the central hole in the mirror using an Invar flexural system.

이론/모형

The single-shot precision is calculated by the normal point algorithm (ILRS 2018) based on the statistical signal processing to remove outliers and noises from raw measure-ments, which means the RMS of fitting residuals for remaining measurements after the signal processing. In the case of the ILRS tracking network, the SLR system performance is evaluated by single-shot precision for three ranging targets: Starlette, Lageos, and ground target.

참고문헌 (19)

Bennet F , Price I, Rigaut F, Copeland M, Satellite imaging with adaptive optics on a 1 m telescope, in 17th Advanced Maui Optical and Space Surveillance Technologies (AMOS) Conference, Maui, Hawaii, USA, 20-23 Sep 2016.
10.1016/j.asr.2014.10.020 Bennett JC , Sang J, Smith C, Zhang K, An analysis of very short-arc orbit determination for low-Earth objects using sparse optical and laser tracking data, Adv. Space Res. 55, 617-629 (2015). 10.1016/j.asr.2014.10.0200273-1177

상세보기
10.5140/JASS.2015.32.3.209 Choi EJ , Bang SC, Sung KP, Lim HC, Jung CG, et al., Design and development of high-repetition-rate satellite laser ranging system, J. Astron. Space Sci. 32, 209-219 (2015). 10.5140/JASS.2015.32.3.209

원문보기 상세보기
10.5140/JASS.2014.31.3.225 Choi MS , Lim HC, Choi EJ, Park E, Yu SY, et al., Performance analysis of the first Korean satellite laser ranging system, J. Astron. Space Sci. 31, 225-233 (2014). 10.5140/JASS.2014.31.3.225

원문보기 상세보기
10.1364/AO.15.001479 Gebhardt FG , High power laser propagation, Appl. Opt. 15, 479-2493 (1976). 10.1364/AO.15.001479201652100003-6935

상세보기
Greene B , Gao Y, Moore C, Wang Y, Boiko A, et al., Laser tracking of space debris, Proceedings of 13th International Laser Ranging Workshop, Washington D.C., USA, 7-11 Oct 2002.
Grosse D , Bennet F, Copeland M, d’Orgeville C, Rigaut F, et al., Adaptive optics for satellite imaging and Earth based space debris manoeuvres, Procceedings of 7th European Conference on Space Debris, Darmstadt, Germany, 18-21 Apr 2017.
Hampf D , Wagner P, Riede W, Optical Technologies for observa-tion of low Earth orbit objects, in 65th International Astro-nautical (IAC) Congress, Toronto, Canada, 29 Sep - 3 Oct 2014.
ILRS , International Laser Ranging Service website [Internet], cited 2018 Nov 27, available from: https://ilrs.cddis.eosdis.nasa.gov
10.1029/JA083iA06p02637 Kessler DJ , Cour-Palais BG, Collision frequency of artificial satellites: the creation of a debris belt, J. Geophys. Res. 38, 2637-2646 (1978). 10.1029/JA083iA06p026370148-0227

상세보기
10.1016/j.asr.2012.08.009 Kirchner G , Koidl F, Friederich F, Buske I, Volker U, et al., Laser measurements to space debris from Graz SLR station, Adv. Space Res. 51, 21-24 (2013). 10.1016/j.asr.2012.08.0090273-1177

상세보기
10.1016/j.asr.2018.02.033 Lejba P , Suchodolski T, Michalek P, Bartoszak J, Schillak S, et al., First laser measurements to space debris in Poland, Adv. Space Res. 61, 2609-2616 (2018). 10.1016/j.asr.2018.02.0330273-1177

상세보기
10.5140/JASS.2011.28.2.155 Lim HC , Bang SC, Yu SY, Seo YK, Park E, et al., Study on the Optoelectronic design for Korean mobile satellite laser ranging system, J. Astron. Space Sci. 28, 155-162 (2011). 10.5140/JASS.2011.28.2.155

원문보기 상세보기
10.1051/eucass/201304735 Liou J , Engineering and technology challenges for active debris removal, Prog. Propuls. Phys. 4, 735-748 (2013). 10.1051/eucass/201304735
10.1016/j.asr.2011.08.005 Mason J , Stupl J, Marshall W, Levit C, Orbital debris-debris collision avoidance, Adv. Space Res. 48, 1643-1655 (2011). 10.1016/j.asr.2011.08.0050273-1177

상세보기
Oh H , Park E, Lim HC, Lee SR, Choi JD, et al., Orbit deter-mination of high-Earth-orbit satellites by satellite laser ranging, J. Astron. Space Sci. 34, 271-280 (2017). 10.5140/JASS.2017.34.4.271
10.1016/j.asr.2005.03.021 Urschl C , Gurtner W, Hugentobler U, Schaer S, Beutler G, Validation of GNSS orbits using SLR observations, Adv. Space Res. 36, 412-417 (2005). 10.1016/j.asr.2005.03.0210273-1177

상세보기
10.1088/1674-4527/12/2/009 Zhang ZP , Yang FM, Zhang HF, Wu ZB, Chen JP, et al., The use of laser ranging to measure space debris, Res. Astron. Astrophys. 12, 212-218 (2012). 10.1088/1674-4527/12/2/0091674-4527

상세보기
Zovaro A , Bennet F, Copeland M, Rigaut F, d’Orgeville C, et al., Harnessing adaptive optics for space debris collision mitigation, in 17th Advanced Maui Optical and Space Surveillance Technologies (AMOS) Conference. Maui, Hawaii, USA, 20-23 Sep 2016.

저자의 다른 논문 :

LOADING...

표제어: PCR

동의어: Packet Collision Rate

용어 설명 출처 목록 (6)

용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

내보내기 구분	파일저장 인쇄 메일전송
구성항목	기본정보 상세정보 관리번호, 논문명, 저널/프로시딩명, 저자 , 발행년, 권, 호, 시작페이지, 끝페이지, 발행기관 관리번호, 논문명, 대등논문명, 저자 , 저널/프로시딩명, 발행기관, 발행년, 발행언어, 권, 호, 시작페이지, 끝페이지, ISBN, ISSN, 주제분야, 키워드, 초록(한글), 초록(영문), 저자(소속기관)
저장형식	Text(ASCII format) Excel format RefWorks Direct Export RIS format (for Reference Manager, ProCite, EndNote), Scholar's Aids, Mendeley
메일정보	받는사람 (필수) @ 보내는사람 (선택) @ 제목 내용 KISTI 검색결과 이메일 서비스
안내	총 건의 자료가 검색되었습니다. 다운받으실 자료의 인덱스를 입력하세요. (1-10,000) 검색결과의 순서대로 최대 10,000건 까지 다운로드가 가능합니다. 데이타가 많을 경우 속도가 느려질 수 있습니다.(최대 2~3분 소요) 다운로드 파일은 UTF-8 형태로 저장됩니다. 파일의 내용이 제대로 보이지 않을실 때는 웹브라우저 상단의 보기 -> 인코딩 -> 자동선택 여부를 확인하십시오. ~ Text(ASCII format) Excel format

연합인증