英语释义

1. any of various functions (such as F(u)) that under suitable conditions can be obtained from given functions (such as f(x)) by multiplying by eiux and integrating over all values of x and that in scientific instrumentation describe the dependence of the average of a series of measurements (as of a spectrum) on a quantity of interest (such as brightness) especially of a very small magnitude — called also Fourier transformation

片语

fourier sine transform傅里叶正弦变换

Fourier-transform pair傅氏转换对

fourier z transformz变换

finite Fourier sine transform有限Fourier正弦变换

fourier inverse transform傅里叶反变换

fourier-transform resonator傅立叶变换外腔

Fourier integral transform傅里叶积分变换

Fourier-transform Rheology傅利叶变换流变学

fourier cosine transform傅里叶余弦变换

英汉例句

• One of the most common digital-signal-processing techniques is the discrete Fourier transform (DFT), which breaks a signal into its component frequencies and can be represented as a matrix.

  最常见的数字信号处理技术之一是离散傅立叶变换（DFT），它把一个信号分解成它的组成频率，并表示成一个矩阵。

• Fourier transform looks at the whole signal at once, Strang says.

  「傅里叶变换一次性地考察整个信号，」Strang说。

• The Fourier transform method has been used to analyze the influence of modal amplitude and phase fluctuations in a mode-locked laser on performance of its output pulse.

  用傅里叶变换的方法分析了锁模激光器中模式间的相位和振幅涨落对锁模脉沖列特性的影响。

• The Fourier transform characteristics of off-axis hololens was discussed, which was made by using a dot light source and an inclined parallel light.

  利用一点光源和一束倾斜平行光拍摄了一种离轴全息透镜，并对其傅里叶变换特性进行了分析。

• For discrete convolution equation set, generally, people use Fourier transform method to solve. But in some positions, zero frequency will lose.

  对于离散卷积方程组，一般采用傅氏变换的方法求解，但在某些特定系数的情况下，零频率丢失。

• Physical meaning: the self-correlation function and the energy spectrum density function compose a Fourier transform pair.

  物理含义：能量信号的自相关函数与能量谱密度函数构成傅立叶变换对。

• The success of the synthesis of the PEG TEFE silane was confirmed with (1)H NMR and Fourier transform infrared spectroscopy (FTIR).

  TEFE硅烷的成功组装已经在（1）HNMR和傅里叶变换红外光谱（FTIR）分析中得到证实。

• The critical part of this sight is a holographic optical elements combined with a lensless Fourier transform hologram and a holographic beam transformer.

  瞄準具的核心部件是由一块无透镜傅里叶变换位相全息图和一块全息光束变换器组成的全息光学元件。

• This paper presents calculation of frequency and phase difference of flow signals with spectrum analysis on basics of Fourier transform (DFT).

  本文采用基于傅立叶变换(DFT)的频谱分析方法，计算流量信号的频率和相位差。

• Along with the rapid development of computer software and hardware technology, the discrete Fourier transform (DFT) has become one kind of important means of image processing.

  随着计算机软件、硬件技术的迅速发展，离散傅里叶变换已经成为图像处理的一种重要手段。

• In this paper, we incorporate Fourier transform with Log-Polar transform to achieve rotation invariant texture analysis.

  通过将对数极坐标和傅立叶变换结合，完成旋转不变的傅立叶纹理特征提取。

• What follows is a case study of an actual application - a discrete Fourier transform (DFT) - showing the performance improvements that result when compiling with various compiler options.

  接下来的部分是一个实际程序的范例—一个离散的Fourier转变(DFT)—显示了在汇编不同汇编器选项时的改善结果。

• In this paper, a technology of implementation of the multichannel fractional Fourier transform (FRT) is proposed using holographic lens array.

  提出利用全息透镜阵列来实现多通道分数傅里叶变换技术。