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- The commonly used migration methods include split step Fourier (SSF), Fourier finite difference (FFD), frequency space domain finite difference (FXFD), and generalized screen (GS). 目前常用的这类方法有分步傅里叶法 (SSF)、傅里叶有限差分法 (FFD)、频率空间域有限差分法 (FXFD)和广义屏法(GS)。
- Accounting for both accuracy and computational efficiency, we use the explicit short extrapolation operator scheme in a complicated medium layer and the split step Fourier operators in a simple medium layer during depth extrapolations. 文中进一步发展了显示短算子的单程波算法,提出了一个加权二次规划的显式短算子设计方法,这一算子设计方法更好地保证了显示短算子算法的稳定性,使得可用更短的算子取得较高的精度,从而使三维显式短算子单程波算法有更高的计算效率和精度。
- split step Fourier 分步傅里叶
- A Fourier transform does this, but with waves. 傅立叶变化就是这样,但是它是按照波的情况。
- Fractional Fourier Transforms for Cosh-Gaussian Beams[J]. 引用该论文 陈天禄;吴平.
- Using discrete Fourier transform for interpolation of 3-D MT data. 用傅氏变换实现三维MT数据的插值
- Most of your CPU cycles are going into something based on Fourier transforms. 你大多数cpu周期都是在做一些基于傅里叶变换的计算。
- The discrete fourier transform (DFT) exists the errors. 摘要离散傅立叶变换(DFT)存在误差。
- symmetried split - step Fourier methods 对称分步傅立叶法
- Windowed Fourier transform for 3 - D shape measurement[J]. 引用该论文 付艳华;陈文静;苏显渝.
- The pulse signals were processed by using the fast Fourier transforms. 应用快速傅立叶变换方法对脉搏信号进行了分析。
- The characteristic analysis of hololens Fourier transform[J]. 引用该论文 王红霞;盛兆玄;赵玮;李育新.
- Analysis on an Improved Fourier Transform Profilometry[J]. 引用该论文 毛先富;陈文静;苏显渝.
- Pulsar signals should be nearly sinusoidal after the Doppler shifts are taken out, so Fourier transforms pick them up pretty easily. 当多普勒偏移去除后,脉冲星的信号应当近乎是正弦曲线的样子,所以傅里叶变换可以很容易的去除多普勒效应。
- Some interpolated Discrete Fourier Transform (DFT) methods are analyzed. 本文首先讨论并分析了各种插值DFT(离散傅里叶变换)算法,然后提出了一种实正弦信号的快速插值频率估计方法。
- Fractional Fourier transform of apertured paraboloid refracting system[J]. 引用该论文 陈建农;闫金良;王德法;于永江.
- We use Fast Fourier Transform arithmetic to calculate two seriate images. 在相邻两帧图像上,找出相关度最大的两个小区域,用它们之间的距离除以两次拍摄之间的时间间隔,就得到这个小区域在间隔时间内的平均速度,进而得到整个流场的速度分布。
- Some applications of the fast Fourier transform to the polynomial calculation. 多项式计算当中快速傅立叶变换的应用。
- Does not need to say that, fast Fourier transforms algorithm everybody all to know. 不用多说,快速傅立叶变换算法大家都知道的。
- Numerical topics include dense and sparse linear algebra, N-body problems, and Fourier transforms. 课程的数学主题包括稠密/疏线性代数、体问题和傅立叶变换。