Building settlement monitoring and analysis based on BDS
The application of BeiDou satellite navigation system (BDS) in deformation monitoring is of great significance to evaluate the deformation monitoring performance of BDS under construction interference. This article collected deformation data of buildings during and after construction using BDS. In response to the fluctuation and randomness characteristics of monitoring data,firstly,an improved wavelet threshold function method was used for denoising. Secondly,the BDS denoised data was compared with the level monitoring data. Finally,the final settlement of the buildings was predicted. Through actual measurement of buildings by BDS and processing of monitoring data,the results show that the construction period is affected by various factors,and BDS monitoring data contains a large amount of noise. The proposed improved wavelet threshold function denoising method can effectively remove noise from BDS monitoring data. The average relative error between the denoised data and the level data is less than 10.9％. The parabolic model is used to predict the denoised data,and the final settlement range when the settlement is stable is from −53.43 mm to 55.26 mm. This article processes BDS monitoring data to achieve effective prediction of building settlement deformation and verifies that BDS still has good performance in environments under construction interference.
BeiDou satellite navigation system (BDS)buildingssettlement predictionimproved threshold functionparabolic model
万方数据
维普
