搜索资源列表
CreatColorLuoqiFringe2.m
- 这是在MATLAB下生成的彩色条纹,对于傅里叶变换很有用,可以扩大实验的研究范围,更好的设计实验-This is generated in the MATLAB color stripes, for the Fourier transform useful in expanding the scope of experimental research, and better design of experiments
S-transform
- S变换源代码,S变换是短时傅里叶变换和小波变换的结合。- the source code of S transform
DIT_FFT_2
- 用matlab实现基2时间抽取快速傅里叶变换fft-Base 2 with matlab time taken to achieve the fast Fourier transform fft
ding
- 选取windows系统自带的ding.wav信号作为分析对象,在Matlab软件平台下,利用函数wavread对音频信号进行采样,记住采样频率和采样点数,听一下原始声音sound(y, fs, bits)。 (2)音频信号的频谱分析,先画出音频信号的时域波形;然后对音频号进行快速傅里叶变换fft(y,N),N取32768,画出信号的频谱特性,加深对频谱特性的理解。 (3)根据频谱,反演时域特性,画出时域波形。寻找幅值最大的两个频率,此频率除以fft点数在乘以采样频率就是信号的主频,即可合
fft
- 设计一个按照时间抽取的基2快速傅里叶变换(基2FFT-DIT)。输入倒位序,输出自然顺序。-Design is taken in accordance with the time radix-2 fast Fourier transform the (base 2FFT-DIT). Enter the inversion sequence, the output of the natural order.
DCT
- 实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见,经DCT低通滤波后,图像变得很模糊。因为DCT是FFT取其实部,能量减少,因此图像变得很模糊,没有经FFT滤波后的效果好。 经DCT高通滤波后的图像: 经DCT高通滤波后,图像的低频部分被滤除掉,图像变黑,只有边缘的痕迹可见。-The DCT of image high-pass, low pass filter and compared with the Fourier transform.
FFT
- 基于stc12c5a60s2的 fft音频快速傅里叶变换,可以扩展做数字滤波器-Fft audio based stc12c5a60s2 the fast Fourier transform, digital filters can be extended to do
invspecgram
- 逆短时傅里叶变换,由短时傅里叶谱恢复原信号-INVSPECGRAM Performs the Inverse Short Time FFT (Inverse SPECGRAM).
fft
- 使用c++语言对彩色图像进行傅里叶变换。里面使用了cimg库和fftw库-Using c++ language for color image Fourier transform. Cimg used inside the library and library fftw
denoise_fft_angle_Analysis
- 计算时间序列的快速傅里叶变换并画出时域和频域图,之前进行小波降噪。-Calculate the time series and fast Fourier transform time-domain and frequency domain plot diagram, before wavelet decomposition.
DFRFT
- 分数傅里叶变换离散化(DFRFT)算法,注释是 后面的文字,程序比较简单-Discrete fractional Fourier transform (DFRFT) algorithm, the text behind the comment is , the program is relatively simple
fft
- 快速傅里叶变换的matlab实现,用于对信号进行频谱分析-Fast Fourier transform matlab implementation for spectral analysis of signals
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
FFT
- 使用labview实现傅里叶变换的子VI,labview版本为8.5.-Fourier transform using labview to achieve the sub-VI, labview version is 8.5.
FFTW
- 世界上最快的傅里叶变换库fftw的中文参考文档-The world' s fastest Fourier transform library fftw reference documentation in Chinese
demo
- 数字图像处理的c++源文件,包括灰度变换,直方图增强,伪彩色,图像傅里叶变换等,对于初学者会很有帮助-Digital Image Processing C++ source file, including the gray level transformation, histogram enhancement, pseudo-color and imageFourier transform It would be helpful for beginners.
RecPF_v2.2
- 基于局部傅里叶变换数据的重构算法的研究,是一种比有效快速的重构算法-New features: Switched to complex computation, fully compatible with complex data Replaced penalty parameter continuation by R. Glowinski and P.L. Tallec s alternating direction method (ADM or ADMM) New
exp2_FFT_DIT
- 设计一个按照时间抽取的基2快速傅里叶变换(基2FFT-DIT)。输入倒位序,输出自然顺序。-To design a time of extraction according to the base 2 Fast Fourier Transform (base 2FFT-DIT). Input inversion sequence, the output natural order.
ZFFT
- Matlab编写的加窗傅里叶变换及原理-Written in Matlab and principles of windowed Fourier transform
FFT
- fft快速傅里叶变换程序代码,fortan fft快速傅里叶变换程序代码,fortan-fft Fast Fourier Transform code, fortan fft Fast Fourier Transform code, fortan