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。
“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。
That s part of what makes Fourier wonderful. Nonetheless, for some signal-processing applications, banded matrices could prove more efficient than the Fourier transform.
那是傅里叶变换美妙的部分，但对于某些信号处理应用来说，带状矩阵可以比傅里叶变换更加高效。
That's part of what makes Fourier wonderful. "Nonetheless, for some signal-processing applications, banded matrices could prove more efficient than the Fourier transform."
那是傅里叶变换美妙的部分，但对于某些信号处理应用来说，带状矩阵可以比傅里叶变换更加高效。
When they turned these measurements into a series of waves using a mathematical trick called a Fourier transform, the waves increased in magnitude as their frequency decreased.
当他们把测量结果通过傅立叶变换分解成一组波时，这组波随着频率减小而增幅巨大。
One is the fast Fourier transform (FFT) accelerated algorithm.
一种是快速傅立叶变换(FFT)加速算法。
Fast Fourier Transform (FFT) is an effective method to detect harmonic.
快速付立叶变换(FFT)是对谐波进行检测的有效方法。
Fourier transform is the basis for the coherent processing in radar imaging.
雷达成像现均采用基于傅里叶变换的相干处理。
This algorithm is based on two dimensional discrete Fourier transform (2dft).
该水印算法基于二维离散傅立叶变换(2dft)。
The Fourier transform is a classical method for analyzing signal singularities.
傅立叶变换是分析信号奇异性的传统方法。
Local Fourier transform (LFT) is an important texture feature extracting method.
局部傅里叶变换(LFT)是一种重要的纹理特征提取方法。
A method for storage of color films using Fourier transform holograms isp resented.
本文提出一种利用傅里叶变换全息图存储彩色胶片的方法。
Fourier transform lens is key operating element in optical information processing system.
在光学信息系统中，傅立叶变换透镜是关键的运算部件。
In the field of signal analysis, the DFT (Discrete Fourier Transform) is a well known term.
在信号分析领域，DFT(离散傅立叶变换)是一个常见术语。
A minimum phase signal can be recovered from the magnitude or phase of its Fourier transform.
最小相位信号可由其傅氏变换的幅度或相位来恢复。
Basic theory of spectrum analysis and Fast Fourier Transform (FFT) algorithm are briefly introduced.
简介了频谱分析的基础理论和快速傅利叶变换(FFT)算法。
Fast Fourier Transform (FFT) is a kind of fast computation method of Discrete Fourier Transform (DFT).
快速傅里叶变换(FFT)是离散傅里叶变换(DFT)的快速算法。
The Discrete Fourier Transform (DFT) plays an important role in digital signal processing and many other fields.
离散傅里叶变换（DFT）在数字信号处理等许多领域中起着重要作用。
Theoretical analysis shows that the new deblurring function is the Fourier transform of inverse filtering function.
理论分析证明，此新消模糊函数是逆滤波函数的傅里叶变换。
Single spherical refracting system as the most basic unit for performing fractional Fourier transform was proposed.
提出单球面折射系统可以作为光学分数傅里叶变换的最基本单元。
The effect of double Fourier transform filtering and the optimization of experimental parameters have been studied.
对双重傅里叶变换滤波效果、实验参数的优化作了研究。
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。
The synthesized films were characterized by X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy.
用X光电子谱和傅立叶变换红外谱方法表征了制备的薄膜。
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 single rectangular pulse is a typical signal in Fourier transform, which plays an important role in signal spectrum theory.
矩形窗函数是傅立叶变换中的一个典型信号，它在信号频谱理论中占有重要地位。
A new optical image encryption method using anamorphic fractional Fourier transform and double random phase encoding is proposed.
提出一种利用变形分数傅里叶变换和双随机相位编码对图像加密的方法。
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。
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。
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。
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