协方差函数的抗差拟合Robust Fitting of Covariance Function
刘念
摘要(Abstract):
如果最小二乘拟合推估法被应用在重力异常、高程异常等的内插中 ,当观测值中含有粗差时 ,由此拟合的协方差函数就不能精确表征其统计性质。本文先从协方差函数的拟合过程入手 ,通过分析传统的协方差函数拟合法的无抗差性 ,提出了协方差函数的抗差拟合法
关键词(KeyWords): 协方差函数;等价权;迭代
基金项目(Foundation):
作者(Author): 刘念
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