Assessment of the Single Frequency Low Cost GPS RTK Positioning

[摘要] The Global Navigation Satellite System (GNSS), nowadays, is to be an important tool for determining positions and times on the real-time and post-processing applications. This study aims to assess the performance of the single frequency L1-GPS using low cost receivers. The performance will be evaluated by comparing with the geodetic L1+L2 GPS receiver to positioning performance. The low cost receivers used were Ublox NEO-M8T and Allystar HD9100. While, the dual frequency GPS TOPCON was used as reference receiver. The results show, RTK mode can improve the accuracy compare with single positioning up to centimetres. In this experiment, the Allystar HD9100 gives a better result than Ublox Neo M8T. However, the result discrepancies may be caused by the simple antenna splitter.

[发布机构] Department of Geomatics Engineering, Institut Teknologi Sepuluh Nopember, Surabaya; 60111, Indonesia^1;Department of Engineering Physics, Institut Teknologi Sepuluh, Nopember Surabaya; 60111, Indonesia^2

[效力级别] 能源学

[关键词] Dual frequency;Global Navigation Satellite Systems;GPS receivers;Low cost gps;Positioning performance;Post processing;Real time;Single frequency