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。
Here is the Fortran driver program that was used to time the DFT codes.
下面是一个用于计时dft代码的Fortran驱动器程序。
Particularly fierce arguments are raging around the Department for Transport (DfT), which must make cuts of 25% or more in its budget.
异常激烈的争论围绕着英国交通部（DfT）进行，因为它必须砍掉25%预算或更甚。
The paper presents a method of motion curve frequency domain filtering in Omni-directional M-mode echocardiography images based on Discrete Fourier Transform (DFT).
介绍一种基于离散傅里叶变换(DFT)的全方向M型超声心动图运动曲线频域滤波技术。
In this paper, a knowledge-based design for testability (DFT), is presented.
本文提出了一种基于知识的可测试性设计(DFT)方法。
Spectroscopic properties of selected systems have been investigated by time dependent density functional theory (TD-DFT).
体系光谱计算采用时间依赖的密度泛函方法（TD-DFT）。
At the TD-DFT level, absorptions and phosphorescence properties of the studied molecules were calculated on the basis of the optimized ground - and excited-state geometries, respectively.
在含时密度泛函方法水平上，我们以分子的基态、激发态优化几何为基础分别研究了它们的吸收和磷光性质。
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。
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。
After a bandpass filter, QDPSK signal's symbol can be divided into steady section and transition section, so the demodulation and synchronization for the signal can be realized with DFT.
经过限带滤波后的QDPS K信号的码元波形可分为稳定区与过渡区，根据这一特点可以利用DFT方法来实现信号的解调和位同步。
If the DFT is reduced to less than specified, the area shall be abraded as described above and an additional layer of coating shall be applied until sufficient thickness is achieved.
如果干膜厚度缩减到低于指定时，该区域按照之前描述的进行研磨，并应再涂敷额外的一层保护层直到达到足够厚度。
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。
Goertzel algorithm is a fast algorithm of DFT.
戈泽尔算法是离散傅立叶变换的一种快速算法。
A method for processing unequally spaced samples, derived from conventional DFT, is presented.
本文根据通常的DFT处理，研究出一种适用于不等间隔采样信号处理的方法。
Density functional theory (DFT) of quantum chemistry was briefly introduced.
简要介绍了量子化学中的密度泛函理论。
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。
The first step of design for testability(DFT) is to determine the testability index.
合理地提出系统测试性指标是测试性设计的首要步骤。
Density function theory (DFT) is employed to simulate the absorption spectrum.
本文采用密度泛函理论来模拟吸收谱。
The paper proposes a JTAG customizing approach to managing all the DFT logic, for flexibility and less DFT overhead.
本文通过定制JTAG逻辑，以求用最少的开销，最简单灵活的方式来管理各种DFT逻辑。
Same result can be obtained by the relationship between the DHART and DFT.
利用离散哈脱莱变换和DFT之间的关系得出同样的结果。
The frequency resolution is an important concept in the digital signal processing teaching, because it effects the DFT parameter choice.
频率分辨率是数字信号处理课程教学中一个重要的概念，因为它决定了DFT参数的选择。
Design For Testability (DFT) techniques have been proposed.
可测试性设计(DFT)技术被提了出来。
Signal sequence DFT is a signal frequency spectrum sampling sets, therefore DFT can be directly used for analysis of signals frequency spectrum.
信号序列的DFT本身就是信号频谱的采样集，所以DFT可直接用于分析信号的频谱。
Analyzing inverse DFT, we obtained a system of linear equations, whose solution can be taken as the spectrum of the data series.
通过对离散傅立叶逆变换的分析，我们得到一个线性方程组，它的解可以作为序列的谱。
To get a sense of what the DFT does, consider an MP3 player plugged into a loudspeaker.
我们以一个接有喇叭的mp3播放器为例来大体了解一下DFT是什么。
Meanwhile, the linear scaling algorithms of DFT are getting mature, which makes the application of DFT to large systems such as biological macro molecules become possible.
与此同时，线性标度的密度泛函理论算法日趋成熟，使得通过密度泛函理论研究诸如生物大分子之类的体系成为可能。
A novel design method for the prototype filters of a Near Perfect Reconstruction (NPR) Discrete Fourier Transform (DFT) modulated filter bank is proposed.
提出了一种新的近似完全重构(npr)离散傅立叶变换(DFT)调制滤波器组的原型滤波器设计方法。
A high performance measurement of initial phase via a Dual Interpolated DFT method based on error information is presented.
提出了一种基于误差知识的二重插值DFT方法用于高精度时钟初相测量。
DFT circuits implemented in RPR ASIC reduces difficulties in circuit test and greatly improves fault coverage.
DFT电路的实现大大降低了专用集成电路的测试难度，提高了故障覆盖率。
Application DFT Discrete Fourier Transform, right through MATLAB continuous signal spectrum analysis, in order to meet the theoretical analysis and practical needs.
应用离散傅里叶变换dft，通过MATLAB实现对连续信号频谱分析，以满足理论分析和工程实际的需要。
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