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http://dx.doi.org/10.5139/JKSAS.2008.36.2.171

Implementation of GPS/Galileo Integrated Navigation Algorithm and Analysis of Different Time-Coordinate Effect  

Song, Jong-Hwa (건국대학교 전자공학과)
Jee, Gyu-In (건국대학교 전자공학과)
Jeong, Seong-Kyun (한국전자통신연구원)
Lee, Sang-Uk (한국전자통신연구원)
Kim, Jae-Hoon (한국전자통신연구원)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.36, no.2, 2008 , pp. 171-178 More about this Journal
Abstract
Galileo is the Europe's global navigation satellite system corresponding to the GPS. The GIOVE-A test experiment has been finished and the second test satellite GIOVE-B will be launched soon. The integration of GPS and Galileo lead an increase of visible satellite number. We can obtain an improved navigation performance in signal blocked area such as urban or forest. GPS and Galileo have each time-coordinate system and use the different error model to calculate the navigation solution. In this paper, we studied on GPS and Galileo channel error model and time-coordinate system. Using this result, we implement the integrated navigation algorithm. In simulation, we analyzed the navigation error caused by time and coordinate disagreement and verified performance of integrated navigation algorithm in terms of visible satellite number, DOP(Dilution of Pression) and position error.
Keywords
Integrated Navigation Algorithm; Time and Coordinate System; Number of Visible Satellite; DOP;
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