ABSTRACT
There is already a trend in many countries for the establishment of GPS CORS network to support a
range of positioning applications. A research-based GPS CORS network known as ISKANDARnet is
planned to provide DGPS service within ISKANDAR Malaysia region. In this study, the reference station
of ISKANDARnet DGPS is planned to transmit differential corrections in a standard format via the
internet or radio link. This paper will be discussing the quality of reference station’s coordinate and
pseudorange measurement in order to compute the differential correction. Experimental tests on the
DGPS simulation have been conducted in order to evaluate the performance of differential correction. It
is expected that the ISKANDARnet DGPS service will enable the user to achieve better positioning results
for navigation and range applications within this area.