Based on the unascertained characteristic of river water quality system, the parameters of water quality model are defined as the unascertained Numbers by using unascertained mathematics theory.
基于水质系统的未确知性，运用未确知理论将瞬时排污情形下河流水质模型参数定义为未确知数。
Oxygen consumption coefficient K1is one of key parameters in water quality model.
耗氧系数K 1是水质模型中关键的参数之一。
In order to overcome the disturbance of noises, a robust identification method of water quality model parameters namely trust region algorithm based on M-estimation is proposed.
为了克服随机噪声对河流水质模型参数估计的干扰，提出了一种水质模型参数的鲁棒估计方法，即基于M -估计的信赖域算法。
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