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离散傅里叶变换,即DFT
- 离散傅里叶变换,即DFT, 注意:FFT在matlab里有现成的函数可以用,它只是DFT快速实现的一种方法而已。,DFT: Discrete Fourier transform.
使用matlab对正弦信号采样
- 使用matlab对正弦信号采样 以及对其进行DFT变换,Matlab sinusoidal signal on the use of sampling, as well as its DFT transform
ofdm_program_matlab
- 802.11a OFDM MATLAB仿真代码,包括OFDM映射,IDFT/DFT,同步(时间/频率同步)和信道估计,以及频率偏移的估计等一系列代码-802.11a OFDM MATLAB simulation code, including OFDM mapping, SINGLE/DFT, synchronous (time/frequency synchronization) and channel estimation, and the estimated frequency offse
DCT
- 用matlab对一张图片进行DFT变换,DCT变换,比较保留20个DCT变换系数重构的图象与原始图像的差别.-Using matlab on a picture to DFT transform, DCT transform, compared to 20 DCT transform coefficients to retain the image reconstruction of the difference between the original image.
fft-dft
- fft算法,fft与dft算法的比较,并有详细的文档说明。-fft algorithm, fft compared with the dft algorithm and a detailed descr iption of the document.
conv
- 利用DFT和IDFT计算x(n)和y(n) 的10点、15点、20点圆周卷积,然后与线形卷积结果画图比较-Calculated using DFT and IDFT x (n), and y (n) 10 points, 15 points, 20 points cyclic convolution, and then drawing comparison with the linear convolution result
matlab-code
- 对数字图像处理中的离散傅里叶变换(DFT),离散余弦变换(DCT)进行了详细的分析。其中DFT包括log视觉处理,中心点移动等。DCT包括分块处理,和保留较少系数,并比较结果。-Digital image processing of the discrete Fourier transform (DFT), discrete cosine transform (DCT) for a detailed analysis. DFT which include the log of visual pr
matlab
- 计DFT,IDFT,FFT,循环卷积,循环移位以及重叠保留法-Of DFT, IDFT, FFT, cyclic convolution, cyclic shift and overlap to retain the Law
dft
- dft数字水印源代码 -DFT Digital Watermarking source code
DFT
- 1)编写DFT子函数(计算并画出幅频特性),以后可调用。 2)N=32,M=32,128,256时,分析频率分辨率、频谱的光滑程度。 3)N=64,256,512时,分析频率分辨率和频谱的光滑程度。 -1) the preparation of DFT Functions (calculated and drawn amplitude-frequency characteristics), the future can be called. 2) N = 32, M = 32,128
DFT
- 题目:离散富立叶变换(DFT)和频谱分析.matlab实现 1信号函数h(t)= e-a*t*tsin(2πft)2编程计算的离散富立叶变换(DFT)和IDFT图像。3计算振幅谱,相位谱以及检测信号主频-Title: Discrete Fourier Transform (DFT) and spectral analysis. Matlab function to achieve a signal h (t) = ea* t* tsin (2πft) 2 programming computin
matlab
- 基于matlab 的 dft 的 fft 的 是吸纳-the same as before fft dft
DFT
- 实现dft基本功能。对频率分辨率有特殊说明,希望对您有帮助。-The realization of the basic functions of dft. Frequency resolution of special note, I hope for your help.
DFT
- 利用DFT法求周期信号的功率谱,实现离散傅立叶变换DFT,最后分析得到频谱幅度.-DFT method using the power spectrum of periodic signals seeking to achieve the Discrete Fourier Transform DFT, the final analysis, amplitude spectrum obtained
MATLAB
- 本文介绍了数字信号处理中各种算法基本原理,包括Z 变换、DFT 变换及其快速 算法FFT 等信号变换算法和包括IIR 与FIR 数字滤波器的设计与实现,详细论述了利用 MATLAB 软件对信号变换和设计数字滤波器的原理﹑ 步骤和实现方法,并给出了基于 MATLAB 的模拟与仿真。文章最后给出了实验结果,并就其结果做了进一步的解释和说明。 关键词:Z 变换,离散傅立叶变换DFT,数字滤波器,系统结构仿真 -This article describes a variety of
DFT
- 数字信号处理中的DFT源代码,很实用,希望对大家有用-DFT Digital Signal Processing source code, it is useful, we want to be useful
DFT-digital-watermark
- 利用DFT变换实现数字水印的源代码,请大家赐教-the code about the digital watermark in the region of DFT,using matalab
DFT
- DFT算法在matlab里的实现方法,自行查看(DFT algorithm in matlab)
DFT
- matlab用DFT矩阵形式实现的DFT函数与IDFT函数(using MATLAB to realize a DFT function in DFT's definition.)
WaterMarkDemo
- Matlab DFT+QIM水印 提取嵌入全过程(Matlab DFT+QIM demo)