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Description: 计算序列的DFT的快速算法-DFT calculated sequence of the fast algorithm
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Size: 1024 |
Author: 陈国栋 |
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Description: c语言实现的离散傅立叶（DFT）变换。非快速傅里叶变换，基本的傅里叶变换。-A basic Discrete Fourie Transform program, not Fast Discrete Fourie Transform
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Size: 205824 |
Author: 周晓尧 |
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Description: DSP编程常用函数 double uniform(double a,double b,long int* seed) double gauss(double mean,double sigma,long int *seed) double exponent(double beta,long int *seed) double laplace(double beta,long int* seed) double rayleigh(double sigma,long int *seed) double weibull(double a,double b,long int*seed) int bn(double p,long int*seed) int bin(int n,double p,long int*seed) int poisson(double lambda,long int *seed) void dft(double x[],double y[],double a[],double b[],int n,int sign) void fft(double x[],double y[],int n,int sign)-DSP programming functions commonly used double uniform (a double, double b, long int* seed) double Gauss (double mean, double sigma, long int* seed) double exponent (double beta, long int* seed) double Laplace (double beta,* long int seed) double Rayleigh (double sigma, long int* seed) double Weibull (a double, double b, long int* seed) int bn (double p, long int* seed) int bin (int n, p double, seed long int*) int poisson (double lambda, long int* seed) void dft index (double x [], double y [], [] a double, double b [], int n, int sign) void fft (double x [], double y [], int n, int sign)
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Size: 2048 |
Author: 山城棒棒儿军 |
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Description: 数字图象处理算法的演示，包括：图象的DFT和逆DFT，图象的FFT和逆FFT，在图象中加入正弦噪声，图象的模板运算实现图象平滑和锐化等等。-digital image processing algorithms demo, including : Image DFT and inverse DFT, FFT image and inverse FFT, in the image by adding sinusoidal noise, the template image Operational Image sharpening and smoothing and so on.
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Size: 277504 |
Author: wysh |
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Description: 加窗离散傅立叶变换，用DFT对离散信号进行谱分析，通过选用不同的加窗函数来抑制信号截断造成的频谱泄漏-windowed discrete Fourier transform, DFT right discrete signal spectral analysis, the increase in the alternative window function to curb the disconnect signal leakage spectrum
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Size: 1024 |
Author: 戴曙君 |
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Description: 连续信号离散傅立叶变换，用DFT对连续信号进行谱分析-continuous signal DFT, using DFT to analyze continuous signals.
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Size: 1024 |
Author: 戴曙君 |
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Description: 用C++编写的比较dft算法，有待优化成为fft算法，请提意见-C dft index prepared by the comparison algorithm, as fft pending optimization algorithm, please comment
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Size: 176128 |
Author: 阿婆 |
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Description: 用途：数字图象处理算法的演示，包括：
• 图象的DFT和逆DFT
• 图象的FFT和逆FFT
• 在图象中加入正弦噪声
• 图象的模板运算实现图象平滑和锐化
• 图象的直方图均衡化
• 图象的对比度拉伸
• 图象的中值滤波
• 图象灰度直方图的显示
• 若干频域滤波器
• 图象的镜像
• 图象的旋转（90度与任意角度）
• 图象的放缩
• 其它小算法
-purposes : digital image processing algorithms demo, including : Image# 8226 DFT and inverse DFT Image# 8226 FFT and inverse FFT# 8226 in the image by adding noise sine# 8226 Image Computing template image sharpening and smoothing# 8226 image histogram equalization# 8226 the contrast of the image# 8226 tensile image median filter# 8226 image histogram display# 8226 some frequency-domain filter image# 8226# 8226 mirror image rotation (90 degrees and arbitrary angle) images# 8226# 8226 Zooming other small Algorithm
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Size: 311296 |
Author: 例为 |
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Description: 数字图象处理算法的演示，
• 图象的DFT和逆DFT
• 图象的FFT和逆FFT
• 在图象中加入正弦噪声
• 图象的模板运算实现图象平滑和锐化
• 图象的直方图均衡化
• 图象的对比度拉伸
• 图象的中值滤波
• 图象灰度直方图的显示
• 若干频域滤波器
• 图象的镜像
• 图象的旋转（90度与任意角度）
• 图象的放缩
• 其它小算法
-digital image processing algorithms demo,# 8226 image DFT and inverse DFT Image# 8226 FFT and inverse FFT# 8226 in the image by adding noise sine# 8226 Image Computing template image sharpening and smoothing# 8226 image histogram equalization# 8226 drawing the contrast of the image Image# 8226 median filter# 8226 image histogram display# 8226 some frequency-domain filter image# 8226# 8226 mirror image rotation (90 degrees and arbitrary angle) images# 8226# 8226 Zooming other small Algorithm
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Size: 2473984 |
Author: 王晶 |
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Description: 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 offset a series of code
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Size: 25600 |
Author: 耿毅 |
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Description: 注意事项：
1>在进行DFT时，强烈建议选用64*64的图像，选用256*256的图像，**时间太长，中间可能导致死机**。
2>程序中在显示频谱图像时有两种方式，即移至中心和未移至中心，可以通过将/** pow(-1, x+y)*/的注释去掉来进行转换。
由于本程序使用了VFW组件，所以在Project－－Setting中－－Object/libray modules中添加vfw32.lib。
-Note : 1
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Size: 151552 |
Author: |
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Description: DFT变换源码，在VC++中编译通过，欢迎下载-DFT transform source code, the compiler of the VC, welcome to download
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Size: 307200 |
Author: 愈加会 |
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Description: 简单方便的DFT（离散傅立叶变换）方法处理图像问题，希望对大家有用。-easy DFT (Discrete Fourier Transform) approach to image problems in the hope that useful for all.
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Size: 779264 |
Author: wqzmodern |
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Description: DFT/FFT Functions(DFT/FFT程序)属于DSP数值运算经典代码的c源代码-DFT/FFT Functions (DFT/FFT program) is classic DSP numerical computing code c source code
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Size: 5120 |
Author: |
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Description: 教你一天掌握DFT算法！文中有实例讲解！-teach you master DFT algorithm day! Wen is on the case!
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Size: 171008 |
Author: wangfuli |
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Description: realize overlapped-add method
％[y]=overlpadd(x,h,Nfft)
％y:output sequence
％x:input sequence
％h:filter impulse response sequence
％Nfft:points of each DFT operation
％重叠相加法实现分段卷积-realize overlapped-add method% [y] = over lpadd (x, h, Nfft)% y : x% output sequence : % h input sequence : impulse response filter% Nfft sequence : DFT points of each operation% of the sum of overlapping sub-convolution Method
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Size: 1024 |
Author: 吴江华 |
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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: DFT 实现图象的变换~使用的是DFT变换，希望对大家有用-DFT transform the image ~ using the DFT transformation, we hope to useful
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Size: 1024 |
Author: 5545 |
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Description: 一天掌握DFT,简单易懂的英文资料，内有部分代码，推荐学习。-day master DFT, easy-to-read English, there are some code, the study recommended.
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Size: 171008 |
Author: 许菱 |
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Description: 数字信号处理的一个简单程序，对三角指数等信号进行DFT、FFT处理-digital signal processing a simple procedure, the right triangle index signals DFT, FFT
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Size: 2048 |
Author: cocacola |
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