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http://dx.doi.org/10.5139/JKSAS.2010.38.10.979

Interoperability Analysis of GPS and Galileo on Time  

Shin, Mi-Young (충남대학교 전자공학과)
Song, Se-Phil (충남대학교 전자공학과)
Ko, Jae-Young (충남대학교 전자공학과)
Yang, Sung-Hoon (한국표준과학연구원 기반표준부)
Lee, Sang-Jeong (충남대학교 전자공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.38, no.10, 2010 , pp. 979-984 More about this Journal
Abstract
The users who use a combined GPS/Galileo receiver will benefit from an improved availability of the combined system and a reduced dependence on one particular positioning system. However, these users must solve the problem of an offset between the time scales of GPS and Galileo (GGTO). GGTO must be analyzed for not only a navigation system but also a timing system requesting precise time service. This paper analyzes the interoperability problem in a combined GPS/Galileo timing receiver and estimates the timing performance under various assumptions. The GPS real measurements were collected by using the commercial timing receiver from Ashtech Ltd. and the Galileo measurements were generated by a simulation software. A suitable test scenario set-up and the performance in a point of timing stability was evaluated.
Keywords
Combined GPS; Galileo Receiver; GGTO; Interoperability;
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  • Reference
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