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- Title
基于千寻定位的铁路定测GNSS RTK 中线 测量数据分析.
- Authors
梁 旺
- Abstract
In order to study whether the center line survey in the railway location survey stage using GNSS RTK technology could meet the requirements of "code for railway engineering survey" for the accuracy of the center line survey plane vertical and horizontal direction and the elevation of the center stake, the center line survey data collection was carried out based on the plane CPI control network and the line benchmark control survey datum in the same railway location survey stage. The paper compared and analyzed the difference and mean square error between GNSS RTK technology and single base station GNSS RTK Technology in obtaining center pile plane elevation data, studied and analyzed the measurement results of the two methods. The conclusion is drawn that, the difference and mean square error of plane coordinate and elevation between GNSS RTK technology and single base station GNSS RTK measurement results is not more than 0. 05 m, The error is less than the limit of 0. 1 m in vertical and horizontal directions of the central line survey plane and 0. 1 m in the elevation of the center stake in the code for railway engineering survey. The results shows that the GNSS RTK Technology Based on the Qianxun positioning can replace the traditional single base station GNSS RTK Technology in the railway location survey stage to a certain extent. The feasibility of GNSS RTK Technology based on Qianxun positioning in other measurement applications in railway location survey stage is discussed as well.
- Subjects
RAILROADS; ACQUISITION of data; ALTITUDES
- Publication
Railway Investigation & Surveying, 2022, Vol 48, Issue 4, p20
- ISSN
1672-7479
- Publication type
Article
- DOI
10.19630/j.cnki.tdkc.202107110001