Development of Real-Time Kinematic GPS System for Precision Agriculture : Validation of Positioning Accuracy

Abstract

The objective of this research was to validate the accuracy of position acquired from a real-time kinematic (RTK) GPS system. The systems consist of a RTK GPS base station which sent the correction signal to a rover GPS station through the Internet network via TCP/IP from mobile phone signal. The position of the base station in the North – East grid reference system was set while the corrected positions of the rover station were recorded. The test results showed that the positions of the rover station acquired from RTK GPS system compared to the highly precise and accurate position which was measured from a total station gave the differences in position about 10.89 and 12.69 cm. in the North and East direction respectively.