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- Fast Fourier arithmetic 快速傅立叶算法
- 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。
- The main calculation in the particle image matching algorithm is to have the two visual seriate images taken the cross-correlation arithmetic based on the fast fourier transform. 本文在分析相关算法的基本原理和各种算法的的基础上，将两连续的视频图像进行基于快速傅里叶变换的互相关运算，与传统的互相关算法相比，大大提高了运算速度。
- A dedicated processor that unburdens the central microcomputer by quickly performing such functions as arithmetic, logarithmic, trigonometric, fast Fourier transform, and floating-point calculations. 一种专用处理器，能快速完成下列操作：算术运算、对数运算、三角函数计算、快速傅里叶变换以及浮点运算，从而减轻了中央微计算机的负担。
- A dedicated processor that unburdens the central microcomputer by quickly performing such functions as arithmetic, logarithmic, trigonometric, fast Fourier transform, and floating - point calculations. 一种专用处理器，能快速完成下列操作：算术运算、对数运算、三角函数计算、快速傅里叶变换以及浮点运算，从而减轻了中央微计算机的负担。
- 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。
- 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。
- Also analysis the frequency respond and filter characteristic of Fourier arithmetic based on the uncertainty of the sample result of sine signal. And meanwhile analysis the influence of the fault on the protection relay and Fourier arithmetic. 同时,根据正弦信号采样结果的不确定性现象,分析了离散形式的傅氏算法的幅值频率响应以及其滤波特性,并由此分析了直流系统发生换相失败故障以及系统恢复过程中的暂态过程对交流侧系统的继电保护以及傅氏算法的影响。
- 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。
- Unit for Real Fast Fourier Transformatio - Unit for Real Fast Fourier Transformation. 实时快速傅立叶变换的模块。
- In addition, the emphasis of the thesis is the use of Fast Fourier Transform (FFT) in reactive power compensation. 研究的另一个重点是快速傅立叶变换在无功补偿中的应用。
- Fast Hartley Transform(FHT) can be achieved by using the structures similar to that in Fast Fourier Transform (FFT). 利用与快速傅氏变换相同的结构可以构造快速哈特莱变换(FHT)。
- DCT is based on FFT (Fast Fourier Transform), so integers FFT transform must be structured firstly. DCT变换采取基于FFT(fast Fourier transform)的快速算法，所以，首先寻找整数FFT变换。
- Besides, combining Fast Fourier Transform (FFT) with EMD shows the different results with HHT. 此外，结合快速傅利业转换(FFT)与EMD呈现出与HHT不同的结果。
- Using convolution and fast Fourier transform(FFT) algorithm to calculate diffraction integral,the CGH is reconstructed by digital focus method. 通过卷积和快速傅立叶变换 (FFT)的方法计算衍射积分 ,以数字聚焦的方法进行再现。
- Application of complex conjugate gradient method(CCGM) and fast Fourier transform(FFT) to study multitudinous scattering in near-field optics. 利用共轭梯度法与快速傅立叶变换(CCGM-FFT)相结合的方法来研究近场多体散射问题。
- The conjugate gradient method (CGM) and fast Fourier transform (FFT) technique are used to reduce the necessary memory and CPU time. 在求解过程中应用共轭梯度法 (CGM)和快速傅立叶变换 (FFT)相结合的方法降低所需计算机内存和CPU时间。
- Fast Fourier Transform (FFT) is inevitable to cause the spectrum leakage and fence effect because of truncation and discreteness in signal collection. 采用快速傅立叶变换(FFT)进行电力系统谐波分析时，需要对采样信号截断并离散化，从而导致频谱泄漏和栅栏效应。
- Firstly, on the basis of the fabric texture classification, a spectrum image was derived from the Fast Fourier Transform (FFT). 首先在研究织物纹理分类的基础上，通过傅立叶变换获得频谱图像；
- Application of complex conjugate gradient method (CCGM) and fast Fourier transform (FFT) to study multitudinous scattering in near-field optics. 摘要利用共轭梯度法与快速傅立叶变换(CCGM-FFT)相结合的方法来研究近场多体散射问题。
