Performance Analysis of Ranging Techniques for the KPLO Mission

In this study, the performance of ranging techniques for the Korea Pathfinder Lunar Orbiter (KPLO) space communication system is investigated. KPLO is the first lunar mission of Korea, and pseudo-noise (PN) ranging will be used to support the mission along with sequential ranging. We compared the pe...

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Main Authors: Sungjoon Park, Sangman Moon
Format: Article
Language:English
Published: The Korean Space Science Society 2018-03-01
Series:Journal of Astronomy and Space Sciences
Subjects:
Online Access:http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2018/v35n1/OJOOBS_2018_v35n1_39.pdf
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author Sungjoon Park
Sangman Moon
author_facet Sungjoon Park
Sangman Moon
author_sort Sungjoon Park
collection DOAJ
description In this study, the performance of ranging techniques for the Korea Pathfinder Lunar Orbiter (KPLO) space communication system is investigated. KPLO is the first lunar mission of Korea, and pseudo-noise (PN) ranging will be used to support the mission along with sequential ranging. We compared the performance of both ranging techniques using the criteria of accuracy, acquisition probability, and measurement time. First, we investigated the end-to-end accuracy error of a ranging technique incorporating all sources of errors such as from ground stations and the spacecraft communication system. This study demonstrates that increasing the clock frequency of the ranging system is not required when the dominant factor of accuracy error is independent of the thermal noise of the ranging technique being used in the system. Based on the understanding of ranging accuracy, the measurement time of PN and sequential ranging are further investigated and compared, while both techniques satisfied the accuracy and acquisition requirements. We demonstrated that PN ranging performed better than sequential ranging in the signal-to-noise ratio (SNR) regime where KPLO will be operating, and we found that the T2B (weighted-voting balanced Tausworthe, voting v
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spelling doaj.art-727e5d5d6c614bc7a71ca9b42042edec2024-01-02T00:57:18ZengThe Korean Space Science SocietyJournal of Astronomy and Space Sciences2093-55872093-14092018-03-01351394610.5140/JASS.2017.35.1.39Performance Analysis of Ranging Techniques for the KPLO MissionSungjoon Park0Sangman Moon1Korea Aerospace Research Institute, Daejeon 34133, KoreaKorea Aerospace Research Institute, Daejeon 34133, KoreaIn this study, the performance of ranging techniques for the Korea Pathfinder Lunar Orbiter (KPLO) space communication system is investigated. KPLO is the first lunar mission of Korea, and pseudo-noise (PN) ranging will be used to support the mission along with sequential ranging. We compared the performance of both ranging techniques using the criteria of accuracy, acquisition probability, and measurement time. First, we investigated the end-to-end accuracy error of a ranging technique incorporating all sources of errors such as from ground stations and the spacecraft communication system. This study demonstrates that increasing the clock frequency of the ranging system is not required when the dominant factor of accuracy error is independent of the thermal noise of the ranging technique being used in the system. Based on the understanding of ranging accuracy, the measurement time of PN and sequential ranging are further investigated and compared, while both techniques satisfied the accuracy and acquisition requirements. We demonstrated that PN ranging performed better than sequential ranging in the signal-to-noise ratio (SNR) regime where KPLO will be operating, and we found that the T2B (weighted-voting balanced Tausworthe, voting vhttp://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2018/v35n1/OJOOBS_2018_v35n1_39.pdfPN rangingsequential rangingaccuracyacquisition probabilityintegration time
spellingShingle Sungjoon Park
Sangman Moon
Performance Analysis of Ranging Techniques for the KPLO Mission
Journal of Astronomy and Space Sciences
PN ranging
sequential ranging
accuracy
acquisition probability
integration time
title Performance Analysis of Ranging Techniques for the KPLO Mission
title_full Performance Analysis of Ranging Techniques for the KPLO Mission
title_fullStr Performance Analysis of Ranging Techniques for the KPLO Mission
title_full_unstemmed Performance Analysis of Ranging Techniques for the KPLO Mission
title_short Performance Analysis of Ranging Techniques for the KPLO Mission
title_sort performance analysis of ranging techniques for the kplo mission
topic PN ranging
sequential ranging
accuracy
acquisition probability
integration time
url http://ocean.kisti.re.kr/downfile/volume/kosss/OJOOBS/2018/v35n1/OJOOBS_2018_v35n1_39.pdf
work_keys_str_mv AT sungjoonpark performanceanalysisofrangingtechniquesforthekplomission
AT sangmanmoon performanceanalysisofrangingtechniquesforthekplomission