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Description: 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。
-application DFT Discrete Fourier Transform, right through MATLAB continuous signal spectrum analysis, in order to meet the theoretical analysis and practical needs.
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Size: 78848 |
Author: 殷开 |
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Description: DSP 的 matlab 仿真，主程序部分，已经通过编译。-DSP Matlab simulation, part of the main program, the compiler has passed.
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Size: 4096 |
Author: 丁聪 |
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Description: 用MATLAB语言编写的基2 DIT FFT子程序& 用简单的速度很低的方法计算DFT-using MATLAB prepared by the two-DIT FFT routines
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Size: 1024 |
Author: egg |
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Description: 1．通过实验加深对快速傅立叶变换（FFT）基本原理的理解。
2．了解FFT点数与频谱分辨率的关系，以及两种加长序列FFT与原序列FFT的关系。
离散傅里叶变换（DFT）和卷积是信号处理中两个最基本也是最常用的运算，它们涉及到信号与系统的分析与综合这一广泛的信号处理领域。实际上卷积与DFT之间有着互通的联系：卷积可化为DFT来实现，其它的许多算法，如相关、滤波和谱估计等都可化为DFT来实现，DFT也可化为卷积来实现。-1. Deepen the experimental fast Fourier transform (FFT) the basic tenets of understanding. 2. Understand the FFT spectrum and points of the resolution, and two extended sequence with the original FFT FFT relations. Discrete Fourier Transform (DFT) and the convolution of two signal processing is the most commonly used basic arithmetic, they relate to the signal and system analysis and synthesis of the wide range of signal processing field. DFT actually convolution and interoperability between contact : DFT into convolution can be achieved in many other algorithms, If relevant, filtering and spectral estimation could be achieved as DFT, DFT into convolution can be achieved.
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Size: 3072 |
Author: 深蓝 |
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Description: MATLAB 的有限序列的离散傅里叶变换（DFT）源程序-MATLAB finite sequence of discrete Fourier transform (DFT) source
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Size: 1024 |
Author: 陈咚咚 |
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Description: 自己实现的一维、二维DFT。优点：变换后的低频分量在中间，弥补了matlab库函数的不足（高频分量在中间）-Realize their own one-dimensional, two-dimensional DFT. Advantages: low-frequency components after the transformation in the middle, made up for the inadequacy of matlab library function (high-frequency component in the middle)
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Size: 2048 |
Author: gjf281 |
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Description: 针对一幅图像的DFT变换及移到中心并返回幅度值和角度-Against an image of the DFT transform and move to center and return rate of value and perspective
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Size: 32768 |
Author: opalus413 |
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Description: 信号与系统试验报告
离散傅立叶变换（DFT）和频谱分析
一、实验内容
1、实验题目
（1）编写DFT、IDFT程序，并验证其正确性（提示：可利用冲激函数进行验证）。
（2）计算信号f(t)=e-at2sin(2∏ft)的离散傅立叶变换（DFT），求其振幅谱，相位谱、振幅最大值对应的频谱（检测主频）以及对发f(t)进行DFT变换的结果实现IDFT变换，并画出图形。
参数选择如下：频率f =30HZ，a=f 2㏑(M),M=2.5
2、通过实验理解信号振幅谱、相位谱的物理意义，掌握DFT、IDFT算法的实现方法。
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Size: 56320 |
Author: 凤凰 |
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Description: 离散傅里叶变换，开发环境是MATLAB。-Discrete Fourier Transform, the development environment is MATLAB.
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Size: 11264 |
Author: andy |
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Description: 基于dft的水印代码，水印注入、提取、防攻击测试-DFT-based watermarking code, watermark injection, extraction, anti-attack test
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Size: 356352 |
Author: wjp |
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Description: 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 = 32,128,256, the analysis of the frequency resolution, the degree of smooth spectrum. 3) N = 64,256,512, the analysis of the frequency spectrum resolution and the degree of smoothness.
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Size: 45056 |
Author: hsf |
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Description: 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 computing discrete Fourier transform (DFT) and IDFT image. 3 Calculation of the amplitude spectrum, phase spectrum, as well as detection of signal frequency
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Size: 100352 |
Author: chissie |
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Description: 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.
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Size: 1024 |
Author: Kevin Lu |
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Description: 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 description of the document.
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Size: 16384 |
Author: 张岚 |
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Description: 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
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Size: 15360 |
Author: 姚涛 |
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Description: 编写一个matlab函数用一个N点离散傅里叶变换同时计算两个N点实序列的离散傅里 叶变换，并将结果与直接使用两个N点离散傅里叶变换计算出来的结果进行比较-Write a matlab function with an N point discrete Fourier transform and calculate actual sequence of two N point discrete Fourier transform, and the results with the direct use of two N point Discrete Fourier Transform calculated results are compared
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Size: 9216 |
Author: liu |
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Description: 用matlab实现了对于已知序列求其离散傅里叶变换，并给出了三个实际例子进行解释。-Achieved with matlab known sequence requirements for its discrete Fourier transform, and gives practical examples to explain the three.
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Size: 3072 |
Author: yuyingying |
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Description: 图像处理matlab源代码，主要使用傅里叶变换。-Image processing matlab source code, primarily using the Fourier transform.
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Size: 1024 |
Author: gxc |
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Description: 用DFT对连续时间信号进行谱分析，用DFT定义进行计算，不同抽样频率不同抽样点下的谱分析Matlab实例。(The continuous time signals are analyzed by DFT, and calculated by DFT definition. The Matlab examples are analyzed under different sampling frequencies and sampling points.)
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Size: 1304576 |
Author: Binaryman
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Description: 最基础的数字信号处理关于DFT,IDFT,FFT可以直接matlab运行(dft.m idft.mThis is a very good button source code complete and can be used directly)
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Size: 46080 |
Author: 晴晴晴晴晴 |
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