基于哨兵升降轨数据的盘州市地表形变监测应用研究  

Application of surface deformation monitoring in Panzhou City based on Sentinel ascending and descending track data

作　　者：孙晨红 曹翠华 SUN Chenhong;CAO Cuihua(Shaanxi Academy of Aerospace Technology Application Co.,Ltd.,Xi′an,Shaanxi,710100,China;Xi′an Zhongke Star Map Spatial Data Technology Co.,Ltd.,Xi′an,Shaanxi,710100,China)

机构地区：[1]陕西航天技术应用研究院有限公司,陕西西安710100 [2]西安中科星图空间数据技术有限公司,陕西西安710100

出　　处：《测绘技术装备》2022年第2期23-27,共5页Geomatics Technology and Equipment

摘　　要：为研究我国西南山区发生地表形变规律,本文首先基于哨兵升、降轨数据,利用干涉图堆叠技术获取升轨和降轨数据垂直方向的年平均沉降速率,然后利用小基线集技术对盘州市水平方向和垂直方向的形变进行监测,获得2017年10月至2018年12月垂直方向和水平方向的年平均形变速率和累计形变量,最后对AB剖线升、降轨数据的沉降速率和二维分解垂直方向年平均形变速率进行对比,获得对比结果,并对地表形变规律及形变原因进行分析。研究表明,该地区发生形变时不仅存在垂直形变,还存在大量的水平形变,且这种形变与采矿、地质发育以及人类活动有较大的关系。In order to study the law of surface deformation in the mountainous areas of southwest China,this paper firstly obtains the annual average subsidence rate in the vertical direction based on the Sentinel ascending and descending track data using the interferogram stacking technique.Secondly,the deformation in both the horizontal and vertical directions is monitored,and the annual average deformation rate and cumulative deformation amount in both the vertical and horizontal directions from October 2017 to December 2018 are obtained.Finally,the subsidence rate and 2D decomposition of the vertical direction of the AB profile ascending and descending track data are obtained respectively.The average annual deformation rate in the vertical direction are compared,and the comparison results are obtained,and the surface deformation law and deformation causes are analyzed.This study has shown that there is not only vertical deformation,but also a large amount of horizontal deformation when deformation occurs in this area,and the deformation has a strong relationship with mining,geological development and human activities.

关 键 词：升、降轨 小基线集技术 干涉图堆叠技术 二维分解 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置] TD82[自动化与计算机技术—控制科学与工程]