CORS System Construction And Position Testing Of Xinjiang Province

CORS is a continuous operation service system consisting of one or more fixed,continuously running GPS reference stations,aggregated data communication technology,computer technology and Internet technology.It can at any point in time,any GPS reference station covered by the area,to meet the various levels of data needs.Unlike the general RTK is to provide users with real-time solution to the satellite data,CORS system diversity services for more different needs of users to provide more help.With the launch of the concept of digital earth,geographic information has been integrated into all walks of life in the national economy,and various forms of real-time geospatial data can meet such as urban planning and construction,land management,environmental monitoring,disaster relief and other aspects demand.In this paper,we first analyze the error source of CORS(taking GPS as an example),elaborate the error processing method and the precision analysis of the collected data,and then introduce the hardware design and interrelationship of CORS station in a province.Finally.The actual situation,the detailed data analysis to assess the quality of the system.The main work of this paper and research focus are:1,Elaborated the basic theory of CORS system development.Through the practical application and development of CORS system in various countries at home and abroad,the necessity of CORS system in today's society is put forward,and the extensive use of traditional network RTK is put forward.2,Summarizes the CORS system design and construction content.According to the regional characteristics of Xinjiang,combined with the error analysis of satellite navigation system and the functional diversity of CORS system,the system design and construction standard of CORS construction are p t forward.3,Explore CORS system quality testing content and methods.From the different acc racy,external acc racy,time availability,spatial usability and compatibility of different angles,combined with the act al given the corresponding detection method.4,Evaluation of CORS system.Through the testing of specific CORS,the performance of the GNSS continuous reference system for long-term observation,the main use and the external environment are evaluated and summarized.