Dr Packard's model gets round this by abandoning simple logarithmic transformation in favour of a more complicated, so-called nonlinear model.
通过舍弃简单的对数转换进而采用更复杂的非线性模型，帕卡德博士的模型解决了这个问题。
Aimed at the kinematic model of the car-like mobile robot with four wheels, the tracking error system is firstly transformed to a nonlinear serial system through a regular transformation.
针对四轮车式移动机器人的运动学模型，首先利用一个正则坐标变换，将误差系统转换为一个非线性串联系统的形式；
The model combines good time domain, frequency domain resolving ability of wavelet transformation and nonlinear learning ability of SVM.
该模型具有小波变换的良好时、频域分辨能力和支持向量机的非线性学习能力；
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