Spectral-Correlation

How to create m-files in Matlab guide.

Calculate the eigenvalues of many 3x3 real symmetric matrices.(Calculate the eigenvalues of many 3x3 real symmetric matrices. Computation is non-iterative, based on fully vectorized matlab matrix operations, and GPU computation is supported. It is fast and efficient for processing a number of 3-by-3 matrices at once. This code particularly suits tensor/Riemannian calculus in 3D, visualization/analysis of volumetric tensor images, image Jacobian/Hessian analysis, stress/tensile strength computation on tensor fields, three dimensional diffusion processes, determining the rotation axes of a motion field, etc....)

使用matlab对两幅图像进行匹配，效果很好，值得参考！(Using matlab to match two images of the good results, it is also useful!)

分析灰色预测模型基本原理的基础上，利用MATLAB强大的矩阵功能，用MATLAB实现灰色预测GM(1，1)模型算法，并通过实例分析验证了程序的准确性和可靠性。(Grey forecasting model of the basic principle, using the powerful MATLAB matrix functions, with the MATLAB implementation Grey GM (1,1) model algorithm, and an example of program verify the accuracy and reliability. )

说明：  OFDM的QPSK仿真程序，里面只有一个txt文件，所有程序都在上面了。(OFDM QPSK simulation program, only a txt file, all proceedings in the above.)

Prony算法工具箱。Prony方法是用一组指数项的线性组合来拟和等间距采样数据的方法,可以从中分析出信号的幅值、相位、阻尼因子、频率等信息。considerations including data preprocessing, model order selection, model order selection criteria, signal subspace selection, signal and noise separation, root inspection and assessing residuals. The PTbox provides flexibility to compare and display analysis results simultaneously for several parameter variations.(Prony algorithm toolbox. Prony method is used for a group of items to be linear combination of distance and other data sampling methods be able to analyze the signal amplitude, phase, the damping factor, frequency, and other information. Considerations including data preprocessing , model order selection, model order selection criteria. signal subspace selection, signal and noise separation, root inspection and assessing residuals. The P Tbox provides flexibility to compare and displ ay analysis results simultaneously for severa l parameter variations.)

This is a demo program of color filter array (CFA) image color reproduction.

涡轮风扇发动机从正常运行至失效的全寿命采集的实验数据，对于研究涡轮风扇发动机的故障的预测及性能评估想必有用。(Turbofan engine failure from normal operation to the whole life of the experimental data collected for the study of turbofan engine failure prediction and performance evaluation must be useful.)

小波变换，小波去噪，小波滤波新方法（软阈值）(Wavelet transform, wavelet denoising, wavelet filtering new methods (soft threshold))

各种加权函数后互相关功率谱的计算，比较，可用于定位系统的时延估计(After various weighting function cross-correlation power spectrum calculation, comparison, can be used for positioning system (GPS) time delay estimation)