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- double Fourier transform 双重Fourier变换
- 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。
- The paper presents encrpytion techniques of double random phase based on anamorphic fractional Fourier transform. 提出变形分数傅里叶变换双随机相位编码技术。
- A new optical image encryption method using dissymmetrical fractional Fourier transform and double random phase encoding was presented. 提出了一种利用不对称分数傅里叶变换和双随机相位编码对图像加密的方法。
- 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.
- double Fourier transforms 双重傅立叶变换
- 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.
- 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。
- In this paper, the finite double Fourier mixed transforms are applied to solve the nonhomogeneous boundary value problems of the wave, heat conduction, Laplace and Poisson equations. 本文用有限的二重傅里叶混合变换解波动方程、热传导方程、拉普拉斯方程以及泊松方程的非齐次边值问题。
- Amulti-mode solution is presented in the form of generalized double Fourier series with time-dependentcoefficients determined by the method of harmonic balance for undamped free vibrations. 给出了以广义双富里哀级数表示的无阻尼自由振动下的多模态解,其中与时间相关的系数由谐波平衡法确定。
- Fractional Fourier Transforms for Cosh-Gaussian Beams[J]. 引用该论文 陈天禄;吴平.
- 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。
- 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。
- Unit for Real Fast Fourier Transformatio - Unit for Real Fast Fourier Transformation. 实时快速傅立叶变换的模块。