This paper is mainly on theoretical research of femtosecond laser pulse Fourier space-time transform shaping.
本论文主要是关于飞秒激光脉冲傅里叶时空变换整形的理论研究。
Free space propagation and Fourier transfer system are also analyzed and discussed as particular cases.
对其通过自由空间和付里叶变换系统特殊情况的传输作了分析和讨论。
The process of reconstructing a function of time or space from its sinusoidal components determined in Fourier analysis.
根据其正弦型分量用傅立叶分析方法重建一个时间或空间函数的过程。
It is difficult to confirm the position and distribution of singularities in space generally when the test data with noise disturbance is filtered by Fourier transform.
用傅里叶变换对含有噪声干扰的试验数据进行滤波，通常难以确定奇异点在空间的位置及分布情况。
Fourier transform only makes sure the feature of a function singular and can not confirm the position and of singular point on space.
傅立叶变换只能确定一个函数奇异性的整体性质，而难以确定奇异点在空间的位置及分布情况。
It is demonstrated that there is only a two dimensional Fourier dual space in the problem of scattering-inverse scattering.
指出在散射一逆散射问题中，只存在两维传氏对偶空间。
The expression and description methods of space curve are demonstrated. The methods of using moment, Fourier to describe the space curve is proposed.
讨论空间曲线的表达和描述方法，提出用矩和傅里叶描述符描述空间曲线的方法。
With the matched layer boundary conditions being introduced, only the 1-D Fourier transform in space is needed for the PS method, greatly improving the computational efficiency.
此外，在伪谱法中引入匹配层边界条件后，只需对空间做一维傅里叶变换，大大提高了伪谱法的计算效率。
Sampling segmented K-space data makes a truncation of MR signal which is with continuous frequencies, leads to the truncation artifact in the reconstruction images after Fourier transform.
由于采集部分K空间数据成像是对连续频率MR信号的截断，导致经过傅立叶变换后的重建图像中出现截断伪影。
IBD algorithm is analyzed, and the space IBD method combined with the IBD method based on Fourier transformation is realized.
分析了IBD算法，并实现了空域IBD和利用傅立叶变换的IBD相结合的算法。
Otaining the double Fourier transform answers to the question of transversely isotropic saturated porous half-space.
求解横观各向同性饱和多孔半空间问题的二重傅立叶变换解答。
Otaining the double Fourier transform answers to the question of transversely isotropic saturated porous half-space.
求解横观各向同性饱和多孔半空间问题的二重傅立叶变换解答。
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