实运算快速付里叶变换法简称RFT方法。
Real operational fast Fourier transformation is called RFT method for short.
文中给出两个用快速付里叶程序完成的例子。
This paper provides two examples computed by F. F. T. program.
推导出共轭对称序列的快速付里叶变换FFT具有相位为零的特性；
It is derived that the phase of the FFT for a conjugate-symmetric sequence is zero.
对其通过自由空间和付里叶变换系统特殊情况的传输作了分析和讨论。
Free space propagation and Fourier transfer system are also analyzed and discussed as particular cases.
本文详细地介绍了利用二维离散付里叶变换(DFT)进行图象复原的方法。
In this paper, the method for carrying out the image reconstruction by means of the 2-dimensional discrete Fourier transform (DFT) is introduced in detail.
本文介绍一种计算离散付里叶变换的新算法，并通过例子说明这种算法的实用性。
This paper introduces an affective algorithm in which we make use of the Fourier transform to find out the Discrete Fourier transform, and to explain the usage of this algorithm by examples.
从付里叶光学理论出发，描述空间匹配滤波器的原理、制作，以及输入信号的处理。
From the theory of Fourier optics, the principle and the manufacture of spatial matched filtering and the processing of input signal will be discussed.
基于反转恢复法建立质子nmr二维时域数据，经双重付里叶变换获得二维频域数据。
Proton NMR two dimensional time-domain data are collected based on the inversion-recovery technique. Double Fourier transformation of those data yields the two dimensional frequency-domain data.
将付里叶变换法运用于电子束曝光的邻近效应校正中，形成了快速、准确的剂量校正法。
By Fourier transform, produces a fast and accurate calculation for dose precompensation in proximity effect correction for electron beam lithography.
本文利用二维付里叶变换对图象中网络构造的频谱作了数学分析，并指出了它的方向特点。
The spatial spectra of net rift for image processing have been mathematically analysed by means of 2d Fourier transform. Its directional property has been found.
对采集到的AMR磁栅尺磁头输出波形进行了付里叶谐波分析，发现了波形中的半次谐波现象。
The harmonics of the output waveforms of AMR magnetic grating ruler head were analyzed and the half harmonics' phenomena were observed for the first time.
首先利用付里叶变换，使问题的求解转换成对一对变量为裂纹面上位移差的对偶积分方程的求解。
By using the Fourier transform, the problem can be solved with a pair of dual integral equations in which the unknown variable is the jump of displacements across the crack surfaces.
本文从工程应用的角度叙述了以付里叶变换为基础的谱分析方法和参数模型谱分析方法所面临的主要问题。
In this paper, main problems that face the Fourier spectrum analysis method and parameter model spectrum analysis method are described from the viewpoint of engineering application.
本文介绍自回归谱分析法的另一种算法—前后向最小二乘法(LS算法)在亚毫米波付里叶变换谱中的应用。
The least square algorithm using forward and backward linear prediction (LS algorithm) for the autoregressive spectral estimates of the SMMW Fourier transform spectroscopy data is presented.
分析表明，基于离散付里叶变换原理的相位测量方法具有测量精度高、抗干扰能力强、电路设计简单等特点。
The analysis shows, compared with the traditional methods, the DFT method is characterized with high measuring accuracy, favorable anti-disturbance ability and simple circuitry.
在双子格模型中，运用HP变换、付里叶变换和玻戈留波夫变换，将简单亚铁磁体的海森伯交换作用哈密顿量对角化。
In the two-sublattice model, the Heisenberg exchange interaction Hamiltonian of the simple ferrimagnetic crystal can be made diagonalization by the use of HP, Fourier and Bogoliubov transformation.
本文在付里叶—夫琅和费全息术基础上，对合成彩虹全息图的制作进行了理论推导，并成功的制作了合成彩虹全息图。
Based on the Fourier-Fraunhofer holography, the composed rainbow hologram have been discussed in theory, and made successfully the composed rainbow hologram.
文章讨论了基于ADSP2 1 0 6x的四种多处理器并行处理器的实现方法，并给出了在快速付里叶变换中的应用实例。
In this paper, four classes different multi-processors parallel DSP system based on ADSP2106X have been discussed. The application of parallel DSP in FFT algorithm is also illustrated.
在系统理论中，付里叶分析与付里叶变换的工具使我们能够对一个线性时不变系统在正弦激励下的响应进行分析，比如一个电路对正弦输入下的响应。
In the theory of the system, the tools of Fourier analysis or Fourier transform enable us to analyze the response of a LTI system, such as a circuit, to such sinusoidal inputs.
然后把这种数值解方法分别运用到所有频率的单色波即可就出其对应的光场，而且对所有的这些数值解作逆付里叶变换就可以将其转换为时间领域的光场。
Such numerical solution is iterated for all the waves with different frequencies, and all the numerical solutions are transformed into the light fields in the time domain by inverse Fourier transform.
然后把这种数值解方法分别运用到所有频率的单色波即可就出其对应的光场，而且对所有的这些数值解作逆付里叶变换就可以将其转换为时间领域的光场。
Such numerical solution is iterated for all the waves with different frequencies, and all the numerical solutions are transformed into the light fields in the time domain by inverse Fourier transform.
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