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1·Fast Fourier transformation is an effective, practical DFT algorithm.

快速傅立叶变换是一种有效、实用的信号DFT算法。

2·Real operational fast Fourier transformation is called RFT method for short.

实运算快速付里叶变换法简称RFT方法。

3·The essence of two kinds of diffractive process is spatial Fourier transformation.

两种衍射过程的实质是空间傅里叶变换。

4·The Fourier transformation is used to calculate the propagating constants of the Si waveguides.

应用傅里叶交换法计算了硅光波导中导模的传播常数。

5·A series of primary pictures are made by optical Fourier transformation and convolution operation.

这种方法是通过对光学傅氏变换所获得的一系列初始图像进行卷积。

6·Three types of data processing are performed using Fourier transformation and correlation technique.

本文应用富立叶变换与相关技术原理对数据进行了三种方式的处理。

7·By using Fourier transformation, the original wave-front can be recovered with higher precision and in more details.

在理想情况下，利用离散傅里叶变换及其性质，能精确恢复原始波面。

8·OBJECTIVE: To differentiate Chinese traditional medicine semen euryales with Fourier transformation infrared spectrum.

目的：用傅立叶变换红外光谱法对传统中药芡实进行鉴别。

9·Fourier transformation in time domain and frequency domain is one of the main methods for modern railway signal detection.

时域分析和傅氏变换的频域分析方法是现代铁路信号检测的主要方法之一。

10·IBD algorithm is analyzed, and the space IBD method combined with the IBD method based on Fourier transformation is realized.

分析了IBD算法，并实现了空域IBD和利用傅立叶变换的IBD相结合的算法。