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http://dx.doi.org/10.5139/JKSAS.2005.33.6.045

Improvement of Success Rate on LEO Satellite Attitude Determination Using GPS Carrier Phase Measurements  

Lee, Eun-Sung (건국대학교 항공우주공학과)
Chun, Se-Bum (건국대학교 항공우주공학과)
Lee, Young-Jea (건국대학교 차세대혁신기술연구원)
Kang, Tea-Sam (건국대학교 항공우주공학과)
Jee, Gyu-In (건국대학교 차세대혁신기술연구원)
Jun, Hyang-Sig (한국항공우주연구원 항행체계그룹)
Joo, Jung-Min (한국항공우주연구원 항행체계그룹)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.33, no.6, 2005 , pp. 45-50 More about this Journal
Abstract
To determine precise position GPS carrier phase measurements are used. In addition, the multi-antenna system consisting of 2 or more GPS antennas can make attitude determination effectively. When GPS carrier phase measurements are used the integer ambiguity must be fixed. The success rate is used to validate the integer ambiguity. For LEO satellite attitude determination the double difference carrier phase measurements are used, the success rate is calculated using the covariance matrix and the measurement matrix. The constraint that LEO satellite position vector and attitude vector is orthogonal is suggested for improving the success rate. The LEO satellite orbit model is KITSAT3. The results of the simulation are shown and analyzed.
Keywords
GPS; Success Rate; Attitude Determination; LEO; Multi-Antenna;
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