Development of Accurate Position Estimation Device Using Rtk Module Based on GNSS

A global navigation satellite system (GNSS) is a position estimation technique using satellites and is now widely used in various fields. However, there are many factors between the rover and the satellite that interfere with position estimation. Satellite time error, orbital error, ionospheric/tropospheric refraction, and multiple paths are some of the factors that prevent accurate position estimation. To improve the position estimation accuracy, real-time kinematic (RTK) has been developed. Therefore, in this paper, we develop a device with RTK technology to improve the position estimation accuracy of a rover. We developed a device with an accuracy of about 10 cm or less using RTK technology.