Application research of CORS system in the survey of high speed railway in mountainous area
This thesis discusses the basic situation of CORS system.In the preliminary design stage of a mountain railway,under the premise of fully considering many comprehensive factors,such as engineering line direction,geological conditions,CORS station setting conditions,overall network shape and so on,an independent CORS system of this project with high performance-to-price ratio is established to replace the traditional GNSS reference station operation mode and give full play to the long-distance regional operation advantages of CORS system to serve the field work of survey and design.At the same time,based on the statistical analysis of the networking accuracy of CORS system,the test accuracy of railway primary control network and the measurement accuracy of construction point,the application conclusion of CORS system and the consideration of popularization and application are summarized.
CORS systemAccuracy analysisConclusion and application popularization