【摘要】：地基合成孔徑雷達(GBSAR)變形監(jiān)測技術,能以mm級精度獲取大面積連續(xù)地表形變,在大壩、滑坡監(jiān)測方面具有極為廣泛的應用前景,是近年研究的熱點。但GBSAR測量受大氣影響嚴重,針對如何減弱或去除大氣影響問題,該文探討了兩種主要方法,即全局環(huán)境改正法和永久散射體法,并結(jié)合某大壩的GBSAR變形監(jiān)測數(shù)據(jù)進行了相應的計算與分析。初步結(jié)果表明兩種方法各有局限性,對于氣象條件復雜的區(qū)域來說,永久散射體法要比全局環(huán)境改正法校正精度高。
[Abstract]:Ground synthetic aperture radar (GBSAR) deformation monitoring technology, which can obtain large area continuous surface deformation with mm accuracy, has a wide application prospect in dam and landslide monitoring, and is a hot research topic in recent years. However, GBSAR measurements are seriously affected by the atmosphere. In view of how to weaken or remove the atmospheric effects, this paper discusses two main methods, the global environment correction method and the permanent scatter volume method. Combined with the GBSAR deformation monitoring data of a certain dam, the corresponding calculation and analysis are carried out. The preliminary results show that the two methods have their own limitations and the correction accuracy of the permanent scatterer method is higher than that of the global environment correction method for the regions with complex meteorological conditions.
【作者單位】： 河海大學地球科學與工程學院;
【分類號】：P225.1

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