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- W2334168314 abstract "在通过InSAR技术获取地表数字高程模型(DEM)的应用中，为了提高该技术对大斜坡或突变等复杂地形的测绘能力，解决单基线情况下的高度模糊问题，可以利用多通道(多频率或多基线)InSAR技术实现。该文比较了最大似然估计法(ML)和最大后验概率估计法(MAP)的性能，并在最大似然估计法的基础上增加了坏点判断和加权均值滤波的环节，通过聚类分析和与相邻点的关系来判断目标像素是否为误差比较大的坏点，然后再利用加权均值滤波的方法将这些坏点剔除。这样，既保留了ML估计法速度快的特点，又提高了DEM的精度。仿真结果表明，在相同条件下，该方法既能保持较好的精度，同时又大大提高了算法的运行效率，非常有利于大规模数据的处理。" @default.
- W2334168314 created "2016-06-24" @default.
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- W2334168314 date "2014-02-26" @default.
- W2334168314 modified "2023-10-18" @default.
- W2334168314 title "Improved Multichannel InSAR Height Reconstruction Method Based on Maximum Likelihood Estimation" @default.
- W2334168314 doi "https://doi.org/10.3724/sp.j.1146.2012.01530" @default.
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