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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。
- 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
- The discrete fourier transform (DFT) exists the errors. 摘要离散傅立叶变换(DFT)存在误差。
- Windowed Fourier transform for 3 - D shape measurement[J]. 引用该论文 付艳华;陈文静;苏显渝.
- 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.
- symmetried split - step Fourier methods 对称分步傅立叶法
- 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。
- Step 5: According to the sound spectrum, inversion of time-domain graphics. (With distortion) Step six: to carry out inverse Fourier transform frequency domain IFFT and painted graphics. 步骤五:根据该声音的频谱,反演时域图形 。(有失真) 步骤六:进行付立叶逆变换IFFT并画频域图形 。
- In this paper, a pulsar de-dispersion algorithm based on the Short Time Fourier Transform (STFT) is presented. 摘要叙述了一种基于短时傅立叶变换的脉冲星消色散算法。
- Fractional Fourier Transforms for Cosh-Gaussian Beams[J]. 引用该论文 陈天禄;吴平.
- The discrete Fourier transform (DFT)and discrete Hartley transform(DHT) can be considered as special cases of DYT. 常用的离散傅里叶变换(DFT)、离散哈特莱变换(DHT)均可视为DYT的特例。
- The Fourier transform is an integral expression for a Fourier series applied to an infinitely long signal. 傅里叶变换式是对博里叶级数的一种积分表达式。
- Doing some of the image-processing procedures (such as Fourier transform, regional growth), people want to help! 详细说明:一些自己做的关于图象处理的程序(如傅立叶变换,区域生长等),希望对人有帮助!