GPS结构振动监测数据滤波方法与其性能实验研究_钟萍.pdf

第 36 卷 　第 1 期 测 　绘 　学 　报 Vol . 36 , No . 1 　2007 年 2 月 ACTA GEODA ETICA et CAR TO GRAPHICA SIN ICA Feb . ,2007 　　文章编号 : 100 11595 (2007) 0 1003 106 中图分类号 :P228. 4 　　　　文献标识码 :A GPS 结构振动监测数据滤波方法及其性能实验研究 1 1 2 1 3 钟 　萍 , 丁晓利 , 郑大伟 , 陈　武 , 徐幼麟 ( 1. 香港理工大学 土地测量与地理咨询学系 , 香港 九龙 ; 2 . 中国科学院 上海天文台 天文地球动力学研究中心 , 上海 200030 ; 3 . 香港理工大学 土木与结构工程学系 ,香港 九龙) Filterbased GPS Structural Vibration Monitoring Methods and Comparison of Their Perf ormances 1 1 2 1 3 ZHON G Ping , D IN G Xiaoli , ZHEN G Dawei , CHEN Wu , XU Youlin ( 1. Dep art ment of L an d S u rvey i ng an d GeoI nf orm atics , The Hong Kong Poly technic University , Hong Kong , Chi na ; 2 . Cen ter f or A st rogeody nam ics Research , S hang hai A st ronom ical Observ atory , Chi nese A cademy of S ciences , S hang hai 200030 , Chi na ; 3. Dep art ment of Civ il an d S t ruct u ral Engi neeri ng , The Hong Kong Poly technic University , Hong Kong , Chi na) Abstract : The purpose of GPS structural vibration monitoring is to obtain information on t he frequency and ampli tude of vibrations based on GPS observations t hat are often affected by various errors. Filters are frequently used to improve GPS accuracy and to retrieve vibration signals from GPS observational series. This p ap er studies t he p erfor mances of four commonly used filters , i . e . , Vondrak , wavelet , adaptive F IR and Kalman filters , for such applica tion