DEVELOPMENT OF SINGAPORE INTEGRATED MULTIPLE REFERENCE STATION NETWORK (SIMRSN) FOR PRECISE FAST STATIC POSITIONING

AbstractFast and high precision GPS relative positioning is now increasingly used for many surveying applications on land and at sea. However, this technique requires the distance between the reference receiver and the user receiver to be within about 10km for high precision surveying work. Users need to set up their own reference stations for DGPS measurements. This constraint will be removed by using a multiple reference station network. In order to use fast static centimetre-level positioning over larger distances, the Singapore Integrated Multiple Reference Station Network (SIMRSN) has been established in Singapore. The objective of this paper is to illustrate accuracy improvements in a fast static positioning mode using the corrected observations derived from the SIMRSN network. Test results are presented to demonstrate the improvement brought by the multiple reference station network approach.