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http://dx.doi.org/10.11003/JPNT.2014.3.1.025

A Feasibility Test on the DGPS by Correction Projection Using MSAS Correction  

Yoon, Dong Hwan (Department of Aerospace Engineering, Sejong University)
Park, Byungwoon (Department of Aerospace Engineering, Sejong University)
Yun, Ho (School of Mechanical and Aerospace Engineering and SNU-IAMD, Seoul National University)
Kee, Changdon (School of Mechanical and Aerospace Engineering and SNU-IAMD, Seoul National University)
Publication Information
Journal of Positioning, Navigation, and Timing / v.3, no.1, 2014 , pp. 25-30 More about this Journal
Abstract
Differential Global Positioning System-Correction Projection (DGPS-CP) algorithm, which has been suggested as a method of correcting pre-calculated position error by projecting range-domain correction to positional domain, is a method to improve the accuracy performance of a low price GPS receiver to 1 to 3 m, which is equivalent to that of DGPS, just by using a software program without changing the hardware. However, when DGPS-CP algorithm is actually realized, the error is not completely eliminated in a case where a reference station does not provide correction of some satellites among the visible satellites used in user positioning. In this study, the problem of decreased performance due to the difference in visible satellites between a user and a reference station was solved by applying the Multifunctional Transport Satellites (MTSAT) based Augmentation System (MASA) correction to DGPS-CP, instead of local DGPS correction, by using the Satellite Based Augmentation System (SBAS) operated in Japan. The experimental results showed that the accuracy was improved by 25 cm in the horizontal root mean square (RMS) and by 20 cm in the vertical RMS in comparison to that of the conventional DGPS-CP.
Keywords
DGPS; DGPS-CP; NMEA format; MSAS;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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