PS-InSAR与DS-InSAR监测城市地面沉降的精度检验与分析  

Accuracy Test and Analysis of PS-InSAR and DS-InSAR Monitoring Urban Land Subsidence

作　　者：夏小裕 王哲奇 XIA Xiaoyu;WANG Zheqi(School of Transportation and Civil Engineering Shandong JiaoTong University,Jinan 250357,China;Shaoxing Planning Bureau,Shaoxing 312300,China)

机构地区：[1]山东交通学院交通土建工程学院,山东济南250357 [2]绍兴市规划局上虞区分局,浙江绍兴312300

出　　处：《海洋测绘》2020年第4期65-67,71,共4页Hydrographic Surveying and Charting

基　　金：山东省重点研发计划(公益类专项)(2019GGX105008)。

摘　　要：为检验PS-InSAR和DS-InSAR监测技术的可靠性,利用覆盖上虞区的23景Sentinel-1影像,分别采用PS-InSAR和DS-InSAR技术进行数据处理,获得了两组上虞区的地表沉降信息,并用上虞区的二等水准监测数据进行精度检验与分析。研究结果表明,二等水准测量与PS-InSAR和DS-InSAR结果的互差主要分布在-5^+5mm/年范围内,说明PS-InSAR和DS-InSAR监测地面沉降结果可靠。To test the reliability of PS-InSAR and DS-InSAR monitoring technology,two sets of data of the surface subsidence of Shangyu are acquired by using PS-InSAR technique and DS-InSAR technique to process the data of the 23 scenes sentinel-1 images covering Shangyu area respectively.The accuracy of the results is tested and analyzed by using the second-order leveling results of Shangyu area.The results show that the mutual difference between the second-order leveling results and PS-InSAR or DS-InSAR results is mainly distributed in the range of-5^+5 mm/year,which demonstrate that the monitoring results of PS-InSAR and DS-InSAR are reliable.

关 键 词：合成孔径雷达干涉测量 差分雷达干涉测量 永久散射体差分干涉测量 分布式散射体干涉测量 地面沉降监测 二等水准测量 平均绝对偏差 克里金插值 

分 类 号：P237[天文地球—摄影测量与遥感]