Height accuracy based on different RTK GPS method for ultralight aircraft images

• Published in: International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
• Main Author: Tahar K.N.
• Format: Conference paper
• Language: English
• Published: International Society for Photogrammetry and Remote Sensing 2015
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959318155&doi=10.5194%2fisprsarchives-XL-3-W3-287-2015&partnerID=40&md5=5e14de280fd4497848afdb83eb7b42c1

Height accuracy is one of the important elements in surveying work especially for control point's establishment which requires an accurate measurement. There are many methods can be used to acquire height value such as tacheometry, leveling and Global Positioning System (GPS). This study has investigated the effect on height accuracy based on different observations which are single based and network based GPS methods. The GPS network is acquired from the local network namely Iskandar network. This network has been setup to provide real-time correction data to rover GPS station while the single network is based on the known GPS station. Nine ground control points were established evenly at the study area. Each ground control points were observed about two and ten minutes. It was found that, the height accuracy give the different result for each observation.