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• By using the Fourier transform, the problem can be solved with a pair of dual integral equations in which the unknown variable is the jump of displacements across the crack surfaces.

首先利用变换，使问题求解转换成对一对变量裂纹面上位移对偶积分方程的求解。

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• The author has discussed two integral transforms for 2.5-D transient electromagnetic forward modeling, namely, inverse Fourier transform and inverse Laplace transform.

这里讨论瞬变电磁法2.5模拟中的两个积分变换：傅里叶逆变换和拉普拉斯逆变换。

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• The fast Fourier transform (FFT) will bring on higher error under nonsynchronous sampling and truncated non-integral period, thus more accurate interharmonic parameter values cannot be obtained.

快速傅里叶变换同步采样非整数周期截断的情况存在较大误差无法获得精确间谐波参数

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• Mathematical representations for three kinds of reconstruction algorithms (Fresnel integral, convolution and Fourier transform) of digital hologram are deduced based on the diffraction theory.

衍射理论基础详细推导了再现算法(菲涅耳积分变换法、卷积法傅立叶变换法)数学表示

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• Mathematical representations for three kinds of reconstruction algorithms (Fresnel integral, convolution and Fourier transform) of digital hologram are deduced based on the diffraction theory.

衍射理论基础详细推导了再现算法(菲涅耳积分变换法、卷积法傅立叶变换法)数学表示

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