【摘要】 抗差权函数的结构设计,是提高抗差估计应用效果的关键。该文的目的是要分析水文模型参数估计问题有效的抗差权函数。论文采用和改进了两种权函数与4种权函数变量,采用了系统参数、输入和输出都是已知真值的理想系统,用两种水文上常见的、具有不同误差统计特点的随机生成模式,每种进行了10万次参数抗差估计试验,通过反复分析与检验,确定了适合于水文问题特点的抗差权函数。更多还原

【Abstract】 Different robust weighting functions are used for different problems. The key to raising the efficiency of the function in robust weighting estimates lies in the structural design. This paper presents a robust weighting function for parameter estimation in hydrological models. Two weighting functions and four variable equations were developed. The robust estimation functions were evaluated for an ideal system with known parameters, inputs and outputs with the system contaminated by errors usually found in hydrological system. The functions were evaluated at onehundredthousand times for the robust weighting estimation test for each function and variable to develop a robust weighting function for hydrological systems.更多还原