联合迭代重构算法在对流层水汽三维重构中的应用研究  

APPLICATION OF SIMULTANEOUS ITERATIONS RECONSTRUCTION TECHNIQUE FOR 3D WATER VAPOR TOMOGRAPHY SYSTEM

作　　者：王维[1] 王解先[1] 

机构地区：[1]同济大学测量与国土信息工程系,上海200092

出　　处：《大地测量与地球动力学》2011年第6期100-103,120,共5页Journal of Geodesy and Geodynamics

基　　金：国家自然科学基金(40974018);国家863计划项目(2009AA12Z307)

摘　　要：通过数值模拟仿真将SIRT算法应用于水汽层析过程,结果显示该算法可以较好地重构水汽的空间分布,并且不受观测方程性质的影响,收敛较快,较之求逆的层析算法更易于实现。Simultaneous iterations reconstruction technique（SIRT） is one of the several reconstruction algorithms of the ART family.It is used widely for tomography technique because of its convenience in dealing with large sparse matrix.Thus SIRT is carried out to reconstruct the three dimension distribution of water vapor by simulation.The results show that SIRT can work effectively in water vapor tomography,get rapid convergence,and implement more easily than inversion.

关 键 词：联合迭代重构算法 图像重构 水汽 层析 迭代 

分 类 号：P207[天文地球—测绘科学与技术]