多元变形数据采集和降维处理  

Multivariate Deformation Data Acquisition and Dimension Reduction Processing

作　　者：李永生[1] 李富荣 赖华荣 卢春盛 周长江[1] LI Yongsheng;LI Furong;LAI Huarong;LU Chunsheng;ZHOU Changjiang(Shaoguan Technology Center of Land and Resources,Shaoguan Guangdong 512026,China;China Construction Communications Construction Group Company Limited,Beijing 100142,China;Guangdong United Jindi Real Estate Assessment Survey and Design Company Limited,Shaoguan Guangdong 512026,China)

机构地区：[1]韶关市国土资源技术中心,广东韶关512026 [2]中建交通建设集团有限公司,北京100142 [3]广东联合金地不动产评估勘测设计有限公司,广东韶关512026

出　　处：《北京测绘》2019年第10期1250-1253,共4页Beijing Surveying and Mapping

摘　　要：本文通过构建多维数据库存储更多变形信息的理论展开,通过测量机器人三维(空间)一体化技术获取变形点三维坐标+时间+温度+湿度等的多维数据,再将多维数据降维处理。通过构建虚拟基线,建立所关心方向上的形变量与形变因素的关系,将二维的变量降为一维的变量来实现基坑变形数据的计算和分析的案例来阐述降维数据处理的思路,供大家探讨交流。In this paper,the theory of building a multidimensional database to store more deformation information is expanded,and the three-dimensional coordinate+time+temperature+humidity,etc.of the deformation point are obtained through the three-dimensional(spatial)integration technology of the measurement robot,and then the dimensional data are processed by dimensionality reduction.Through the construction of virtual baseline,the relationship between shape variables and deformation factors in the direction of concern is established,and the two-dimensional variables are reduced to one-dimensional variables to realize the calculation and analysis of foundation pit deformation data.

关 键 词：变形监测 数据降维处理 虚拟基线 

分 类 号：P258[天文地球—测绘科学与技术]