Study Of GPS RTK Application In Highway Survey And Design

This thesis is concerned on a part of the research project of the GPS (Global Positioning System) in highway survey. It mainly studies how to use GPS-RTK (Real Time Kinematic ) in highway survey and design.The thesis thief introduces the composition of GPS and characteristic of work and application current situation in highway engineering. It discussed the time system and coordinates system involved in highway and conversion in coordinates system. Base on the basic principle of GPS position principle, the sauce of main error in GPS positioning is detailed analysis in this paper and the corresponding treatment method is given. It systematic researched the method of definite in carrier phase ambiguity. This paper combines with the use of the Ashtech Z-surveyor instrument, make a overall research in characteristic of the work pattern of highway GPS RTK technology in highway survey (includes highway level, vertical section, cross section). The thesis describes integration of GPS RTK and Total Position System (TPS) to solve the particular engineering problems. A new idea of the OSW (open survey world) is developed.