摘要
PSInSAR技术为克服相位失相关和大气延迟提供可能,为提高形变监测的精度展示很好的前景。介绍利用澳门地区的数据进行地表沉降探测实验,利用29幅Envisat的SAR数据,建立时间序列差分干涉图。通过对研究区域的64 480多个PS点的计算,从2003年到2010年,该地区的平均沉降速度达到2.1mm/y,与精密水准测量具有较高的一致性。
PSInSAR makes it possible to overcome both phase decorrelations and atmospheric delays, and shows a properous future for improving the accuracy oI monitoring crustal movement. In the paper, we describe the ground subsidence monitoring in Macao by PSInSAR, establishing the time series differential interferogram using 29 Envisat＇s SAR data. Based on 64480 PS points, the mean subsidence rates of the Macao was 2. 1 mm/y from 2003 to 2010, the results are basically in accordance with the leveling.
出处
《测绘工程》
CSCD
2012年第3期39-43,共5页
Engineering of Surveying and Mapping
基金
国家自然科学基金资助项目(40574010)
