Considering that the particle swarm optimization (PSO) algorithm is quite simple and easy to implement, it was used to estimate the nonlinear model parameters in this paper.
粒子群算法操作简便、容易实现且全局搜索功能较强，适用于非线性参数估计。
In our country, concrete nondestructive tests are widely applied to estimate structural concrete strength because they have the characteristics of simple, easy for operating and lower cost.
在我国，混凝土无损检测以其简单、易行、经济等优点被广泛应用于结构混凝土强度评定。
In our country, concrete nondestructive tests are widely applied to estimate structural concrete strength because they have the characteristics of simple, easy for operating and lower cost.
在我国，混凝土无损检测以其简单、易行、经济等优点被广泛应用于结构混凝土强度评定。
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