Analysis of Influencing Factors on Bridge Deformation Monitoring of Beidou Satellite Navigation System
Based on monitoring of bridge deformation of Beidou satellite navigation system,through the example of Yong-he Bridge in Tianjin,this paper analyzes the influence of ephemeris,solution time,station distance and mul-tipath effect on the deformation monitoring effect through the bridge deformation monitoring based on satellite positioning.The results show that the deformation monitoring accuracy is higher when the ephemeris is solved by multiple satellites.The longer the solution time,the higher the deformation monitoring;the distance of the station has little effect on the accuracy of deformation monitoring.The multipath effect has a certain influence on the accuracy of deformation monitoring.It is recommended to weaken the multipath effect by optimizing the algorithm.
beidousatellite navigation systembridgesdeformation monitoringmultipath effectephemerisresolving time
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