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http://dx.doi.org/10.5139/JKSAS.2004.32.5.074

Precise positioning and error analysis method using GPS and GLONASS  

Park, Chan-Sik (충북대학교 전기전자컴퓨터공학부)
Song, Ha-Pyo (충북대학교 전기전자컴퓨터공학부 대학원)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.32, no.5, 2004 , pp. 74-83 More about this Journal
Abstract
The carrier phase measurements from GPS and GLONASS have different characteristics and therefore, have to be processed with different methods to provide precise positions or attitudes. In this contribution, at first, a measurement model is derived which can be used to not only GLONASS only applications but also both GPS and GLONASS applications. And then an error analysis of the proposed method performed using the derived model to derive analytic relationships between GDOP, PDOP and RGDOP. Finally, an integer ambiguity resolution method which was used in GPS is expanded to GPS and GLONASS. The proposed results can be directly applied to the design and analysis of GLONASS receiver and application programs. Furthermore, it is expected that the suggested method can also be effectively applied to combine the characteristically different measurements from the future satellite navigation systems such as GPS modernization, Galileo and QZSS.
Keywords
GPS; GLONASS; Precise Positioning; Integer Ambiguity Resolution; Error Analysis;
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