The utilization of mobile base station in cadastre surveying

Abstract

A baseline is one of the problems in the Continously Operating Referrence Stations (CORS) utilization using the Real Time Kinematic-Networked Transport RTCM via InternetProtocol (RTK-NTRIP) method. A long baseline becomes a constraint to solving ambiguity resolution. It causes correction loss and the receivers need a long time to receive a fixed solution. Therefore, a base station can be installed closer to the measurement site, so it is movable and not permanent. It is called a mobile base station, which makes the baseline shorter. The purpose of this paper is to evaluate the level of efficiency and precision from the utilization of mobile base station. The same samples were measured twice from the two different stations: the base station and the mobile base station. The results show that the average observation duration using the mobile base station is 1.27 minutes, while directly from the base station is 10.73 minutes. The mobile base station can improve the measurement efficiency by 11.84%. The lateral difference is 0.026-0.168 metres for agricultural area and 0.025-0.153 metres for residential area. The difference of land parcels area stay within the allowable tolerance of ± 0.5/L.