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潘    杰

（ 秦皇島市測繪大隊 ，河北 秦皇島 066000)

摘   要 ：針對地下水開采和地質結構變化等情況導致的地表塌陷問題，研究了一種綜合時序 InSAR 和 GIS  技術的城市地表沉降分布式監測方法。基于傳統的 InSAR 技術運用孔徑雷達合成三維空間信息圖像 ，通過差分處理圖像干涉相位。利用GIS 技術與時序相結合，識別提取特征PS 點構建時序形變圖像，分析解纏相位關系， 修正地形圖像基線參數，精確計算地表沉降平均值和單位沉降量，實現對觀測區進行具體的分布式監測分析。通過實驗證明，研究的方法能夠有效實現對復雜地形區域的地表沉降分布式監測，與實際監測誤差不超過

0. 8% ,  具有良好的應用效果和監測效率。

關鍵詞 ：地表沉降分布式監測 ；時序 InSAR 技術 ；GIS 技術 ；地表沉降速率

中圖分類號 ：TM267           

文獻標志碼 ：A            

文章編號 ：1005- 8249  (2023)   03- 0016- 06

DOI : 10. 19860/j . cnki . issn1005- 8249. 2023 . 03 . 016

PAN Jie

( Qinhuangdao Surveying and Mapping Trade  Society ,   Qinhuangdao 066000 ,   China)

Abstract: Aiming at the problem of surface subsidence caused by groundwater exploitation and geological structure changes, a distributed monitoring method for urban surface subsidence using temporal InSAR and GIS techniques was studied. Based on traditional InSAR technology, three-dimensional spatial information images are synthesized using aperture radar, and the image interference phase is processed by differential processing. Using GIS technology combined with time series, identify and extract feature PS points to construct a time series deformation image, analyze the unwrapped phase relationship, modify the baseline parameters of the terrain image, accurately calculate the average value of surface subsidence and unit subsidence, and achieve specific distributed monitoring and analysis of the observation area. The experimental results show that the proposed method can effectively achieve distributed monitoring of surface subsidence in complex terrain areas, with an error of no more than 0.8% compared to actual monitoring, and has good application effects and monitoring efficiency.

Keywords :  distributed monitoring of surface subsidence ;  time series InSAR technology;   GIS technology;  surface subsidence rate

作者簡介 ：潘杰  ( 1980—) , 男，本科， 高級工程師，秦皇島市測繪大隊，研究方向：工程測量。

收稿日期 ：2023- 03-24