The impulse response method is adopted to identify the modal parameters, and the physical parameters are estimated from the characteristic equation of the mathematical model built.
本文采用了单位脉冲响应函数法识别模态参数，由所建数学模型的特征方程识别结合部的物理参数。
A fitted relationship between the parameters and the soil texture was established, with which the model parameters of soil water retention curves can be predicted by the soil physical characteristic.
采用回归分析方法建立了参数与土壤物理特性间的函数关系，为采用土壤颗粒组成等土壤物理特性确定土壤水分特征曲线提供了指导。
In the paper, aim at time - varying characteristic of physical parameters of the structure joint, an online identification method of time-varying parameters of structure joint is presented.
针对结构系统连接处物理参数具有时变特性，本文提出一种用于结构连接处时变物理参数在线辨识方法。
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