搜索资源列表
lowpass
- 基于matlab的，不同截断半径时低通滤波滤波,及傅立叶反变换再现图像，简单易学，希望对你有帮助。-Matlab based on different cut-off low-pass filter at a radius of filtering, and Fourier Transform reproduce images, easy to learn, and they hope to help you.
FFT
- // 入口参数： // l: l = 0, 傅立叶变换 l = 1, 逆傅立叶变换 // il: il = 0,不计算傅立叶变换或逆变换模和幅角；il = 1,计算模和幅角 // n: 输入的点数，为偶数，一般为32，64，128，...,1024等 // k: 满足n=2^k(k>0),实质上k是n个采样数据可以分解为偶次幂和奇次幂的次数 // pr[]: l=0时，存放N点采样数据的实部 // l=1时, 存放傅立叶变换的N个实部 // pi
fftshixian
- 快速傅立叶变换（FFT）算法实现 将DFT算法与FFT算法计算时间进行比较，分析二者的效率和精确差异。-Fast Fourier Transform (FFT) algorithm to DFT algorithm and FFT algorithm for computing time to carry out comparative analysis between the two differences in the efficiency and precision.
fourier
- 介绍了傅立叶变换的基本原理，并给出了傅立叶变换的c语言实现-Introduced the basic principles of Fourier transform, and gives the Fourier transform of c language
fly
- 此源程序利用vc＋＋实现图片的傅立叶变换，希望对大家有用。-This source code using vc to achieve the image Fourier transform, in the hope that useful.
mskxinhaoshipin
- 对msk信号进行短时傅立叶变换，并利用视频分析提取信号特征，非常实用-MSK signals of short-time Fourier transform, and the use of video analysis extract signal features, very useful
alter
- 强大的JAVA图像处理程序。可以实现图像的处理，锐化，模糊，傅立叶变换等功能。-JAVA powerful image-processing procedures. Image processing can be achieved, Sharpen, Blur, Fourier transform functions.
discretefft
- 产生60hz和150hz带噪声的信号源，并用傅立叶变换方法查找主频信号。-Have 60hz and 150hz band noise signal source, and Fourier transform method to find the signal frequency.
fuliyejishu
- 创建25个谐波的傅立叶级数，计算三角形式的傅立叶级数并将计算结果和转换结果相比较，最后绘制频谱。-The creation of 25 harmonic Fourier series, calculation of the triangular form of Fourier series and the results of calculations and conversions, compared to the final rendering spectrum.
sd_wave
- 在vc6.0环境下对实时录入音频画wave波形，用快速傅立叶变换实现得到频谱。-Vc6.0 environment in real-time audio recording painting wave waveform, using Fast Fourier Transform has been the realization of the spectrum.
LabviewMatlab
- Matlab和Labview混合编程，可以演示信号的白噪声添加和滤波，以及时域和傅立叶变换后的频域波形-Matlab and Labview mixed programming, you can demo the white noise signal add and filtering, as well as the time-domain and Fourier transformed frequency domain waveform
arithmetic
- 介绍一些常用的数值计算方法，包括用FFT计算离散傅立叶(Fourier)变换，kalman滤波，alpha-beida-ganma滤波-Some commonly used numerical methods, including FFT calculation of discrete Fourier (Fourier) transform, kalman filtering, alpha-beida-ganma filtering
20069440103
- 显示图片.对图像进行傅立叶变换,灰度化图像,对图像进行二值化变化-Show pictures. Fourier transform image, gray image, the image changes Binarization
Lab10-FFT
- tms320lf2407实现快速傅立叶变换源程序 tms320lf2407实现快速傅立叶变换源程序-TMS320LF2407 source fast Fourier transform fast Fourier transform TMS320LF2407 source
FftLab
- FFT傅立叶频谱分析，从程序的演示可透视出频率频谱相互的换算与复数的关系！-FFT Fourier spectral analysis, from a procedural perspective of the presentation can be a frequency spectrum of the conversion of mutual relations with the plural!
shape_feature
- 一个简单的傅立叶带亮度描绘子提取图像的形状特征程序-A simple Fourier descr iptor with the brightness of the image shape feature extraction procedures
3
- P0301：数字图像矩阵数据的显示及其傅立叶变换 P0302：二维离散余弦变换的图像压缩 P0303：采用灰度变换的方法增强图像的对比度 P0304：直方图均匀化 P0305：模拟图像受高斯白噪声和椒盐噪声的影响 P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波 P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波 P0308：图像的自适应魏纳滤波 P0309：运
exp01_fft
- 德州4516 快速傅立叶变换包含源程序，可直接仿真。-4516 Texas Fast Fourier Transform source code contains direct simulation.
US20070297655
- 本文介绍详细介绍林傅立叶变换原理及分析，可用于数学研究及理解傅立叶变换方法-This article describes the details of Lin Fourier transform theory and analysis, can be used for research and understanding of mathematical methods of Fourier Transform
matdft
- 离散傅立叶变换函数 Program to compute DFT coefficients directly-Discrete Fourier Transform function Program to compute DFT coefficients directly