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http://dx.doi.org/10.12673/jant.2014.18.4.312

Development of Software GPS Receiver for GEO Satellites Using Weak Signal Receiver Algorithm  

Kim, Chong-Won (School of Mechanical and Aerospace Engineering and the Institute of Advanced Aerospace Technology, Seoul National University)
Kim, Ghang-Ho (School of Mechanical and Aerospace Engineering and the Institute of Advanced Aerospace Technology, Seoul National University)
Kee, Chang-Don (School of Mechanical and Aerospace Engineering and the Institute of Advanced Aerospace Technology, Seoul National University)
Publication Information
Journal of Advanced Navigation Technology / v.18, no.4, 2014 , pp. 312-318 More about this Journal
Abstract
The altitudes of GEO satellites are higher than those of GPS satellites. Therefore the visibility and the received power of GPS signals are totally different from those of the users near the Earth's surface. In this study, we analyzed the visibility of GPS signals received on GEO satellites. And we also developed a software GPS receiver that works on GEO satellites using CCMDB algorithm which is a weak signal receiver algorithm. GPS signals received on a GEO satellite are generated by a commercial hardware GPS simulator and used for the verification of the developed software GPS receiver. The mean 3D position and velocity error are calculated as 165.636 m and 0.5081 m/s.
Keywords
GPS; GEO satellite; Software GPS receiver; Weak signal acquisition; Weak signal tracking;
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