关键词: 提升小波变换, 振动信号, 变形监测, 多路径效应, 信息提取

Abstract: Influenced by outside factors such as meteorology and subsidence，high-level structure always produce a series of vibration deformation，so deformation monitoring should be performed to study its vibration characters and ensure its safety.In the process of deformation monitoring，the deformation signal often contains a lot of useless information with the technology of GPS.In order to get useful vibration deformation information，lifting wavelet analysis in signal processing has been considered.Taking a auxiliary shaft elevator platform of Wanbei mining area as an example， monitoring stations positioning on the vibration table，monitoring tests with Trimble R10 for plane point had been made，and lifting wavelet analysis had been operated on the vibration deformation signal，and then wavelet decomposition had been made to achieve useful information.Results showed that the vibration signal obtained by GPS monitoring contained a lot of noise.With the technology of lifting wavelet analysis and decomposition，noise was separated from the effective structural vibration information.It has important reference value for the practice of GPS data processing and the work of deformation information extraction.

Key words: Lifting wavelet transform, Vibration signals, Deformation monitoring, Multipath effect, Information extract