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FFtandIfftTest
- Matlab编程实现FFT变换及频谱分析的程序代码（适合初学者加强理解）。（1)用Matlab产生正弦波,矩形波,以及白噪声信号，并显示各自时域波形图；(2)进行FFT变换，显示各自频谱图，其中采样率，频率、数据长度自选；(3)做出上述三种信号的均方根图谱,功率图谱,以及对数均方根图谱；(4)用IFFT傅立叶反变换恢复信号，并显示恢复的正弦信号时域波形图。-Matlab codes for FFT Understanding which contains sine wave,rectangula
matlab
- 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 -P0301: the display of digital image data matrix and Fourier transform P0302: two-dimensional discrete cosine transform image compression
DCT_DFT_FFT(matlab)
- 无限长的序列也往往可以用有限长序列来逼近。对于有限长的序列我们可以使用离散傅立叶变换（DFT）。DFT是对序列傅立叶变换的等距采样。是序列傅立叶变换的等距采样。 本源码是对DCT、DFT、FFT的matlab实现-Infinitely long sequence is often a long sequence with limited approximation. For the finite length of the sequence we can use the discrete F
sspropc
- 利用分步傅立叶积分法，求解薛定谔方程，可以计算光纤中色散与自相位调制效应-This file solves the nonlinear Schrodinger equation for propagation in an optical fiber using the split-step Fourier method described.
split1
- 利用分步傅立叶积分法，计算了光纤中色散与SPM效应-Step-by-step use of Fourier integral method, the calculation of the fiber dispersion and SPM.
sanjiesesan
- 程序利用快速傅立叶变换及逆变换模拟了脉冲在光纤中传输时三阶色散对脉冲形状的影响。-A procedures using fast Fourier transform and inverse transform simulation of the pulse in fiber transmission third-order dispersion on the shape of the pulse the impact
cbl
- 利用fft()进行快速傅立叶变换，得到频谱，画出正弦函数及其频谱 找出频谱中使得Y轴取最大值时的估计频率记为ft 加入白噪声，绘出信噪比和均方误差的关系曲线 - using fft () for fast Fourier transformation, spectrum, to draw the sine function and its spectrum find the spectrum
exa010101
- 对正弦信号傅立叶变换和时频分析。（注意：需要首先安装时频工具箱-Fourier transform of the sinusoidal signal and time-frequency analysis. (Note: need to first install the time-frequency toolbox
ffti
- 快速傅立叶变换matlab算法 蝶形运算 归一化处理-fft algorithm
FFT
- fft快速傅立叶变换源代码 打包下载 相信对大家有一定帮助-fft Fast Fourier Transform source code package to download that will definitely help all of us
MATLAB-optical
- 用MATLAB软件和液晶光阀实现傅立叶变换计算全息制作及其再现-Using MATLAB software, and liquid crystal light valve to achieve Fourier transform and its reproduction of Computer Generated Hologram
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- 编程实现图像DCT高通、低通滤波器并与傅立叶变换做比较-Programming image DCT high pass, low pass filter and compared with the Fourier transform
Code-of-FFT
- 频率提取（FFT）的Matlab实现，使用该代码可在MATLAB中实现快速傅立叶变换-Frequency Extraction (FFT) of the Matlab implementation of the code in MATLAB using the fast Fourier transform in
123
- 1.进行傅立叶变换 2.采用双循环处理图像噪声 3.逆变换输出图像-1. Fourier transform 2. With double loop handle image noise 3. Inverse transform the output image
FRFT
- 分数阶傅立叶变换的示例程序，个人成果，仅供参考-Fractional Fourier transform of the sample program, individual results, for reference only
GUI
- 用matlab语言编写了一个GUI截面，通过该界面可以实现图像的傅立叶变换，反傅里叶变换，高低通滤波，以及把黑白图像转化成灰度图像等功能。-Matlab language with a GUI section, the interface can be achieved through the Fourier transform of the image, anti-Fourier transform, high and low pass filter, and the black and wh
fftd
- 傅立叶离散型变换，图形变换 傅立叶离散型变换，图形变换-Discrete Fourier transform, discrete Fourier transform graphics transform, discrete Fourier transform transform graphics, graphics transform
Autocorrelation-method
- 自相关方法,可以在某些算法中代替傅立叶算法-Autocorrelation method
Resist-geometric-attacks
- 该算法把计算出的图像不变质心作为对其进行对数极坐标变换的原 点, 再作傅立叶变换, 取出中频段幅值作为水印嵌入域。该算法具有较好的鲁棒性、可检测性, 能同时抵抗几何攻击和信号 处理攻击, 它在数字图像的版权保护等领域有广泛的应用前景。-The algorithm to calculate the heart of the image does not degenerate as the number of its polar transformation of the origin, f
chap4matlab
- 实例10：阶梯图 实例11：枝干图 实例12：罗盘图 实例13：轮廓图 实例14：交互式图形 实例15：变换的傅立叶函数曲线-Example 10: Ladder Diagram Example 11: Example branches Figure 12: Compass Chart Example 13: The contour map instance 14: 15 Interactive graphic example: the Fourier transform f