The discrete Fourier Transform of the variables is computed with the FFT of fixed points.
求变数的离散富氏变换用固定点数的FFT，节省了计算时间。
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。
The discrete Fourier transform (DFT) and discrete Hartley transform (DHT) can be considered as special cases of DYT.
常用的离散傅里叶变换(DFT)、离散哈特莱变换(DHT)均可视为DYT的特例。
The standard method for spectrum analysis in digital signal processing is the discrete Fourier transform(DFT), typically implemented using a fast Fourier transform(FFT) algorithm.
数字信号处理中标准的频谱分析方法是离散傅立叶变换（DFT），典型的实现方法是快速傅立叶变换（FFT）。
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。
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.
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。
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。
The mathematical means of discrete Fast Fourier Transform is used in signal processing.
采用快速离散富里叶变换处理信号；
This paper introduces an analyzing method for evaluating the color even degree on the tile surface in two dimensional frequency domain, that is by adopting two dimensional discrete fourier transform.
本文对采集的瓷砖图像采用二维离散傅利叶变换对瓷砖颜色分布均匀度在二维频域范围内进行分析，提出了一种瓷砖颜色匀度的评判方法。
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。
Starting from continuous Fourier transform, the properties of continuous Fourier transform are discussed, and the paper gives the properties of discrete Fourier transform.
从连续傅里叶变换出发，讨论连续傅里叶变换情况下的傅里叶变换性质，给出离散傅里叶变换情况下的傅里叶变换性质。
Secondly, a DSTFT(Discrete Short Time Fourier Transform )-based demodulation method for the 2FSK signal is studied and algorithms for symbol synchronization and symbol decision are analysed.
重点研究了基于离散短时傅里叶变换解调2FSK信号的方法，分析了几种码元同步算法和码元判决算法。
Advanced signal processing techniques such as discrete wavelet transform (DWT) and a corrected multiresolution Fourier transform (MFT) are applied to investigate the vibration and current transients.
信号处理的先进技术，如离散小波变换(DWT)和纠正多分辨傅立叶变换(MFT中)是适用于调查的振动和电流瞬变。
When we say "frequency transform" or talk about "representing frequency" we are usually talking about the Fourier transform, implemented as the DFT, or discrete Fourier transform.
当我们说“频率变换”或者说“代表频率”是我们通常所说的傅里叶变换，如离散傅里叶变换dft实现，或。
Summing together only three discrete frequencies can produce a much more erratic composite. The Fourier transform provides a way to decompose signals into their constituent frequencies.
将三种单一离散频率叠加起来可以形成一个更加不规律的组合，傅立叶变换提供了一种将信号分解成各自频率成分的方法。
Firstly , the properties of Fourier Transform, including discrete Fourier Transform, FFT and based-2 DIT FFT, are introduced in this paper;
本文首先对傅立叶变换的性质做了详细介绍，其中包括离散傅里叶变换，快速傅立叶变换（FFT）以及基-2按时间抽取（DIT）的FFT算法；
Then according to the properties of discrete Fourier transform, it deduces the discrete Fourier invariant features that are employed on facial image recognition.
依据离散傅里叶变换性质，推导出离散傅里叶变换的不变特征，并将其用于人脸图像识别。
According to the characteristics of unbalance signal, the fast algorithm of discrete Fourier transform (DFT) is presented and accomplished by using microcomputer.
针对测试环境中不平衡量信号的特点，提出了离散傅里叶变换快速算法，并在通用微机上实现。
The direct DFT based channel estimation method uses comb-type pilot symbol and discrete Fourier transform (DFT) to estimate the channel.
有一种直接基于DFT的信道估计方法利用均匀梳状分布的导频符号和离散傅立叶变换（DFT）完成信道估计。
This paper describes the need to transform the continuous periodic signal in time domain to the discrete signal in frequency domain by using Fourier Series (FS).
讨论了利用傅里叶级数把连续周期时域信号转换成离散的频域信号的必要性。
Making use of the advantage of the FDSP in the digital signal processing, we can optimize and improve discrete Fourier transform (DFT) in order to acquire the characteristic variables of the signal.
利用FDSP在数字信号处理上的优势，优化改进了离散傅立叶变换(DFT)算法来提取信号特征量。
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。
Discrete fast Fourier transform (FFT) has been widely applied to signal spectral analysis and can figure out the entire bandwidth spectrum of a signal.
离散快速傅里叶变换算法在频谱分析中得到了广泛的应用，这种算法得到的计算结果是在整个频段上的频谱信息。
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。
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。
This paper selects the algorithm by quantifying the amplitude of the transform domain coefficient and uses this algorithm in the discrete Fourier domain and the discrete cosine domain.
在众多语音信息隐藏算法中，挑选出一种幅度量化的信息嵌入方案，分别在离散余弦和小波变换域上，通过对变换域系数的幅度量化来隐藏信息；
A new algorithm for array synthesis based on inverse Discrete Fourier Transform (IDFT) is proposed in the paper.
基于逆离散傅立叶变换(IDFT)算法，提出了一种新的阵列综合算法。
When all the sample points are handled after the basic cycle of a time interval finally received and discrete Fourier transform as a result of the introduction of DFT algorithm and the Z-transform.
当全部采样点都处理过后，可在基本周期的最后一个时间间隔中得到和离散傅立叶变换一样的结果。
A novel method of fingerprint identification based on the features extracted from the integrated discrete wavelet and the Fourier-Mellin transform (DWFMT) was proposed.
为提高指纹鉴别率，提出了一种基于DWFMT变换提取特征进行指纹鉴别的新方法。
A novel method of fingerprint identification based on the features extracted from the integrated discrete wavelet and the Fourier-Mellin transform (DWFMT) was proposed.
为提高指纹鉴别率，提出了一种基于DWFMT变换提取特征进行指纹鉴别的新方法。
应用推荐