Discussion Of The Application Of GNSS Single Point Positioning In Petroleum Exploration Project In Sudan

This article from the Sultan petroleum exploration project new project to establish control points when facing the known point number and arrangement of GPS control network layout difficulties,poor communications,security constraints and many other difficulties required for field geophysical measurement and indoor processing problems in calculation is established with some experience and understanding of his work.And puts forward how to use the processing platform,three-dimensional coordinates of control points with high precision of the project effectively,discuss and summarize.This paper starts with the brief introduction of the basic error of GNSS system and satellite positioning,so as to prepare the basic knowledge for discussion.Real time precise point positioning system can be developed to provide real-time and fast precise positioning service when these tracks and clock difference information can be obtained.Finally,the technical reference for the rapid and accurate control of 3D coordinates of control points for the Sultan exploration project is obtained.The optimization design of GNSS precise point positioning function,through the actual test precision in the periphery of Sultan GNSS single point positioning function has good accuracy;prove the reliability of real time algorithm,and the convergence time is also optimized.Using the C# programming language and the Windows interface library,the EGM2008 geoid model and the advanced fitting mathematical model are optimized.In the flat area elevation accuracy can reach centimeter level,in the absence of control points,can achieve decimeter level precision can satisfy the precision demand.