Multipath Error Determinant for Pseudo Ranges Observation Data at RTK (Real Time Kinematic)Reference Stations in Malaysia
Mardina Abdullah, and Norbahiah Misran, and Nor Nadira Mohammad Ariff, (2010) Multipath Error Determinant for Pseudo Ranges Observation Data at RTK (Real Time Kinematic)Reference Stations in Malaysia. Jurnal Kejuruteraan, 22 . pp. 31-42. ISSN 0128-0198
Official URL: http://www.ukm.my/jkukm/index.html
Universiti Kebangsaan Malaysia. Faculty of Engineering
Multipath is widely recognized as one of the main source of error in GPS applications. Multipath is the phenomenon
whereby a signal arrives at a receiver via multiple paths attributable to reflection and diffraction. This paper describes the analysis of multipath error of pseudorange obtain from RTK reference station. RTK reference station consists of 27 GPSreference stations and these stations are strategically distributed across Malaysia. This research also identifies which RTK reference station are the most and least affected by multipath effect of both pseudo ranges at L1 (1575.42 MHz) and L2 (1227.60 MHz) of GPS signals. In this research, TEQC software is used to check the multipath effect of both signals. It is shown that the most affected GPS data for multipath at L1 is from Marang (MARG) station with a value 0.453 m and the least from Kuala Kubu Baru (KKBH) station with a value 0.332 m. The most affected at L
2 is also from MARG station 0.666m and the least from Pekan (PEKN) station 0.431 m. It is hoped that this research be very helpful in GPS navigation.
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