全局环境改正法和永久散射体法在地基合成孔径雷达大气改正中的应用
发布时间：2019-01-27 19:10
【摘要】：地基合成孔径雷达(GBSAR)变形监测技术,能以mm级精度获取大面积连续地表形变,在大坝、滑坡监测方面具有极为广泛的应用前景,是近年研究的热点。但GBSAR测量受大气影响严重,针对如何减弱或去除大气影响问题,该文探讨了两种主要方法,即全局环境改正法和永久散射体法,并结合某大坝的GBSAR变形监测数据进行了相应的计算与分析。初步结果表明两种方法各有局限性,对于气象条件复杂的区域来说,永久散射体法要比全局环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.
【作者单位】： 河海大学地球科学与工程学院;
【分类号】：P225.1
本文编号：2416595
[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.
【作者单位】： 河海大学地球科学与工程学院;
【分类号】：P225.1
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