融合GNSS和加速度计的石油平台动态变形分析  

Dynamic deformation analysis of oil platform based on GNSS and accelerometer

作　　者：王林峰 WANG Linfeng(Offshore oil production Company,Shengli Oilfield Company,China Petroleum&Chemical Co,Dongying 257000,China)

机构地区：[1]中国石油化工股份有限公司胜利油田分公司海洋采油厂,山东东营257000

出　　处：《海洋测绘》2023年第1期39-43,共5页Hydrographic Surveying and Charting

摘　　要：为了弥补GNSS技术测量精度的不足,进一步提高构筑物动态变形监测的精度,采用联合GNSS和加速度计两种传感器对石油平台的动态变形进行监测。引入了基于频域处理的数据滤波和积分方法,通过频谱分析方法获取两种方法的截止过渡频率,并对GNSS监测结果中的低频位移与加速度处理结果中的高频位移进行融合。利用模拟实验数据和现场实测实验数据对本文方法进行测试,实验结果表明该方法可以发挥两种仪器的优势,提高变形监测精度,具有一定的工程应用价值。In order to make up for the lack of measurement accuracy of GNSS technology and further improve the accuracy of dynamic deformation monitoring of structures,two sensors,GNSS and accelerometer,are used to monitor the dynamic deformation of oil platforms.The data filtering and integration methods based on frequency domain processing are introduced.The cut-off transition frequencies of the two methods are obtained by spectrum analysis method,and the low-frequency displacement in GNSS monitoring results and the high-frequency displacement in acceleration processing results are fused.The experimental results show that this method can give full play to the advantages of the two instruments,improve the accuracy of deformation monitoring,and has certain engineering application value.

关 键 词：变形监测 数据融合 全球导航卫星系统 加速度计 频域处理 

分 类 号：P229.5[天文地球—大地测量学与测量工程]