• The method USES the DC component and the first harmonic of a curve's chain code expressed by Fourier series to fit the curve, avoiding the inverse calculation of an array used in general methods.

    方法利用闭合曲线傅立叶级数表示直流分量次分量实现对闭合曲线的椭圆合,可以避免通常椭圆拟合方法中的矩阵问题。

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  • On the study of seismic first break, in order to fit the requirements of locale evaluation, it is needed to find a method that can assure accuracy and improve the speed of computation.

    地震波初至走时拾取研究上,寻找既保证准确性提高运算速度方法适应现场评价需求

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  • On the study of seismic first break, in order to fit the requirements of locale evaluation, it is needed to find a method that can assure accuracy and improve the speed of computation.

    地震波初至走时拾取研究上,寻找既保证准确性提高运算速度方法适应现场评价需求

    youdao

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