Research And Application Of GPS Monitoring And Online Pocessing System

With positioning accuracies achievable to centimeter level, networks of GPS Deformation Monitoring is becoming increasingly important in realization of dynamic geocentric reference framework, crustal and ground deformation monitoring. The simultaneous adjustment of GPS data collected from multi-reference station is performed by GAMIT/GLOBK software, and regional deformation with great precision is available. However, GAMIT/GLOBK doesn't perform well for its complicated project preparation, complex system parameters configuration, and running function commands manually. Last but not least, the visual analysis tools for resolved results are needed.In above sense, the thesis studies deeply into principle and methods of processing GPS data aimed at high-precision deformations. Automatically process of GPS data, precision and accuracy inspection is to be implemented by integrating B-shell script with loose GAMIT/GLOBK's function commands. In order to share and publishes deformation information on the Internet with Ajax technology a B/S Deformation Monitoring and Analyzing Web Applications at the desktop level is to be construct. Meanwhile, station's specific coordinates in IRTF reference frame is also supported by online processing.This thesis's purpose is to implement "GPS Deformation Monitoring and Online Processing System", including "Automatic GPS Resolution System" and "Deformation Monitoring and Online Processing Web System". The main researches are as follows:1,Studies deeply into principle and workflows of GAMIT/GLOBK, and the approach to organize all the data which is adaptable automatically process.2,Presents a stable technical solution for "Automatic GPS Resolution System" whose key functions are to customize GAMIT/GLOBK for accessing high-precision deformation information.3,Combines with Web Service and constructs "Deformation Monitoring and Online Process Web System" which could provide rich-internet-applications defamation analysis tools4,Studies on technical route for online processing which allows instantly submit and resolve GPS data.5,designes several experiments to test precision and accuracy of deformation information offered "GPS automatically resolve system", and whether deformation monitoring and analyzing tools offered by "web system" can record real ground motions.