(中南大學(xué) 地球科學(xué)與信息物理學(xué)院，長(zhǎng)沙 410083)
摘 要: 介紹了InSAR技術(shù)在礦區(qū)地表形變監(jiān)測(cè)中的應(yīng)用現(xiàn)狀及進(jìn)展，分析了D-InSAR技術(shù)相比于傳統(tǒng)測(cè)量手段的優(yōu)勢(shì)，并指出其在礦區(qū)地表形變監(jiān)測(cè)中的不足。針對(duì)傳統(tǒng)D-InSAR技術(shù)的局限性，重點(diǎn)討論了短基線(SBAS)、永久散射體(PS)和角反射器(CR)等高級(jí)差分干涉技術(shù)，并結(jié)合礦區(qū)沉降監(jiān)測(cè)實(shí)例，分析了其特點(diǎn)與應(yīng)用現(xiàn)狀，討論了現(xiàn)有研究中仍存在的問題。高級(jí)InSAR技術(shù)和高分辨率SAR影像的結(jié)合將是礦區(qū)地表形變監(jiān)測(cè)的發(fā)展趨勢(shì)。
關(guān)鍵字: InSAR技術(shù)；D-InSAR技術(shù)；礦區(qū)；地表形變監(jiān)測(cè)；短基線；永久散射體；角反射器
中圖分類號(hào)：P227 文獻(xiàn)標(biāo)志碼：A
（School of Geosciences and Info-Physics, Central South University, Changsha 410083, China）
Abstract:The application status and research progress of InSAR technique in the monitoring of the ground surface deformation in mining area were introduced. Firstly, the advantages of D-InSAR technique were analyzed by comparing to the traditional surveying methods. Then, the limitations of D-InSAR in the mining deformation detection were described. According to the limitations of the traditional D-InSAR method, the advanced InSAR technique, e.g., small baseline subset (SBAS), permanent scatterer (PS) and corner reflector (CR) techniques were discussed. Using real mining subsidence monitoring as example, the characteristics and application status of those advanced InSAR techniques were studied, and the key problems still existing in the current research were summarized. Finally, it is indicated that the development trend of InSAR monitoring surface deformation in mining area is the combination of advanced InSAR and high-resolution SAR images.
Key words: InSAR technique; D-InSAR technique; mining area; surface deformation monitoring; small baseline subset; permanent scatterer; corner reflector
