运用水准和InSAR的地面沉降监测数据融合方法  

Data fusing method of land subsidence monitoring based on leveling and InSAR

作　　者：王爱国[1,2] 

机构地区：[1]武汉大学卫星导航定位技术研究中心,武汉430079 [2]河南省地质矿产勘查开发局测绘信息院,郑州450003

出　　处：《测绘科学》2015年第4期121-125,共5页Science of Surveying and Mapping

基　　金：国家自然科学基金项目(41274048)

摘　　要：针对地面监测中水准和InSAR数据的优缺点,提出了沉降数据融合算法以及插值计算方法。采用数据融合方法对水准和InSAR进行融合,较好地解决了水准监测数据的时空分辨率低和InSAR数据中部分地区失相干的弊端,使融合后的数据能更好地描述地面沉降的现状,为更好地预测地面沉降的发展趋势,减少沉降灾害对经济社会的危害。天津地区融合算例表明,所提算法较好地解决了单一数据的缺点,融合后的数据拥有了多数据的优点,对后期地面沉降预测提供准确丰富的数据基础。This paper analyzed advantages and disadvantages of leveling and InSAR in land subsidence.Data fusion algorithm and interpolation calculation were proposed.Data fusion method fusing leveling and InSAR can solve disadvantages of lower spatial and temporal resolution in leveling and coherent using InSAR in part of area.Fusing data can better describe the current situation of land subsidence,and better predict trend of land subsidence,further reduce subsidence disaster harm to economic and social.Fusion example about Tianjin showed that the algorithm could solve the shortcomings of single data.Fusing data had the advantages of multiple data,which could provide a rich data to further predict trend of land subsidence.

关 键 词：地面沉降 数据融合 水准测量 INSAR 

分 类 号：P208[天文地球—地图制图学与地理信息工程]