Accuracy Comparison between GPS Real Time Kinematic (RTK) Method and Total Station to Determine The Coordinate of An Area

Ispen Safrel,Nur Qudus Usman,Eko Nugroho Julianto

doi:10.15294/jtsp.v20i2.16284

Abstract

Abstract. Survey with GPS Real Time Kinematic (RTK) has the advantage of being faster and easier than the total station, but on the other hand the accuracy of GPS Real Time Kinematic (RTK) is considered lacking. This study was to determine the comparison of accuracy and efficiency of measuring land parcels using a total station and GPS Real Time Kinematic (RTK) method. The research location is at the Universitas Negeri Semarang campus by selecting areas that are open or unobstructed to satellites and congested areas or which have many obstacles to satellites. The results of this study indicate that for open areas, measurement with GPS Real Time Kinematic (RTK) method reaches a horizontal accuracy of 0.040 m with a time of 16 minutes 16 seconds. While the measurement using a horizontal accuracy of 0.00 Total Station with a length of time of 26 minutes 47 seconds. For areas that are densely measured, GPS Real Time Kinematic (RTK) achieves horizontal accuracy of 10.053 m with a length of time of 39 minutes 27 seconds. While the measurement using a precision horizontal Total Station 0.00 with the length of time 25 minutes 41 seconds.

Highlights

Global Positioning System (GPS) Real Time Kinematic (RTK) is a part of topographic surveys
In GPS RTK, GPS signals are transmitted in real time from a base receiver at a known position to another rover receivers. [1] for horizontal positioning suggests that the criteria that are not fulfilled due to the polygon network used in the study has an unfavorable form ie some of the sides are too short
[2] The use of Real Time Kinematic GPS receiver RTK obtained the accuracy of the average point position measurement results using GPS RTK compared to using ETS (Electronic Total Station) is 0.214 m so that it can be applied to map scale 1: 500

Summary

INTRODUCTION

GPS Real Time Kinematic (RTK) is a part of topographic surveys. In GPS RTK, GPS signals are transmitted in real time from a base receiver at a known position to another rover receivers. [1] for horizontal positioning suggests that the criteria that are not fulfilled due to the polygon network used in the study has an unfavorable form ie some of the sides are too short. [1] for horizontal positioning suggests that the criteria that are not fulfilled due to the polygon network used in the study has an unfavorable form ie some of the sides are too short This condition resulted in the measurement of the distance with Total Station to be inaccurate. [2] The use of Real Time Kinematic GPS receiver RTK obtained the accuracy of the average point position measurement results using GPS RTK compared to using ETS (Electronic Total Station) is 0.214 m so that it can be applied to map scale 1: 500. To determine the good phase ambiguity, two frequency phase and pseudo range data, relatively good satellite geometry, relatively reliable calculation algorithms and elimination of errors and biases are relatively good and precise This Real-Time Kinematic (RTK) measurement requires two planes serving as reference points (Base) and positioning (Rover). One alternative digital mapping along with the development of mapping technology is currently Global Positioning System (GPS) technology

METHODOLOGY

AND DISCUSSION Results

Conclusions