摘要
针对地基干涉合成孔径雷达在监测有较大形变发生场景时,采用常规大气相位补偿方法存在较大误差的问题,提出了一种GB-InSAR在形变场景下的大气相位补偿方法。利用模糊C均值聚类算法并参考“3σ”法则选出稳定PS点;通过误差逆传播网络来预测所有PS点的大气相位,进而得到补偿之后的相位。实验结果表明:在形变场景下,采用本文所提方法可以准确地选出稳定PS点,有效补偿稳定PS点的大气相位并保留形变PS点的形变信息,提高了形变场景下大气相位的补偿精度。
For the ground-based interferometric synthetic aperture radar(GB-InSAR)when monitoring the scene with large deformation,the conventional atmospheric phase compensation method has the problem of large error,this paper proposes an atmospheric phase compensation method for GB-InSAR in deformation scenarios.First,the fuzzy C-means(FCM)clustering algorithm is used to select stable PS points with reference to the“3σ”rule;then the error back propagation(BP)network is used to predict all atmospheric phase of PS point,and then the phase after compensation is obtained.The experimental results show that in the deformation scene,the method proposed in this paper can accurately select the stable PS point,effectively compensate the atmospheric phase of the stable PS point and retain the deformation information of the deformed PS point,improving the compensation accuracy of atmospheric phase in deformation scenarios.
作者
汤进
刘毓
邓云开
胡政权
陈姣
TANG Jin;LIU Yu;DENG Yunkai;HU Zhengquan;CHEN Jiao(School of Electronics and Information Engineering,Chongqing Three Gorges University,Chongqing 404130,China;Key Laboratory of Geological Environment Monitoring and Disaster Early Warning in Three Gorges Reservoir Area,Chongqing 404120,China;Chongqing Innovation Center,Beijing Institute of Technology,Chongqing 401135,China;School of Information and Electronics,Beijing Institute of Technology,Beijing 100081,China)
出处
《测绘科学》
CSCD
北大核心
2022年第11期145-154,共10页
Science of Surveying and Mapping
基金
国家自然科学基金项目(62101036)
三峡库区地质环境监测与灾害预警重庆市重点实验室开放基金项目(ZD2020A0101)
重庆市自然科学基金项目(cstc2019jcyj-msxm1328)
重庆市教育委员会科学技术研究计划青年项目资助项目(KJQN202101226)
