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提出并解决了利用小波变换通过模糊识别进行平面四杆机构函数尺度综合的计算和方法。首先应用小波变换将给定函数转化为基准小波特征参数，然后将设计机构类型的尺寸型的输出函数转化为小波特征参数，通过模糊识别选择机构的尺寸并算出对应的结构误差，以此确定在给定区间内近似实现给定函数的四杆机构。给出的算例说明了该方法的有效性与优点。
Proposes and resolves the calculation and the method of the scale synthesis of planar four-bar mechanism by using wavelet transform. Firstly, the wavelet transform is used to transform the given function into the reference wavelet characteristic parameter. Then, the size-type output function of the design agency type is transformed into the wavelet characteristic parameter, the size of the mechanism is selected by fuzzy recognition and the corresponding structural error is calculated, A four-bar mechanism that approximates a given function for a given interval. The given example shows the effectiveness and advantages of this method.