response_spectrum

我自己写的小波变换，有低频系数图像，水平高频图像，垂直高频图像，希望对大家有帮助(I wrote it myself wavelet transform, there are low-frequency coefficient images, the level of high-frequency images, the vertical high-frequency images, we hope to help)

MATLAB是一个强大的工具，这份MATLAB入门级材料有助于MATLAB初学者更好的更快的学好MATLAB(MATLAB is a powerful tool, this entry-level material MATLAB help MATLAB beginners learn faster and better MATLAB)

mRMR算法，用于特征选择，包含代码和例子(mRMRalgorithm for feature selection, code and example)

This file gives the main function for the implementation of the hybridized version of the cuckoo search algorithm by combining it with the Nelder Mead Simplex algorithm. The method is designed to minimize functions with a low number of dimensions in a low number of iterations.

gui界面设计，通过简单的历程学会GUI，对于初学者很有帮助！(gui interface design, a simple course of Institute of the GUI, very helpful for beginners!)

arff parser for reading and writing arff file

不容易找到的OBDⅡ诊断故障码总表，广泛覆盖各种车型，用于OBD车载检测设备的开发(obd diagnostic codes table, which cover all cars and is used for the development of OBDII system.)

牛頓優化算法，matlab代碼，已經驗證過可運行出正確結果(Newton optimization algorithm, matlab code has been verified to run the correct results)

复杂网络的一个特征是无标度，该软件提供了一个无标度网络的生成过程(A feature of complex networks is scale-free, the software provides a scale-free network generation process)

在采样点之间的频率响应是由各采样点的加权内插函数叠加而形成的，因而有一定的逼近误差。该误差大小取决于理想频率响应的形状，理想频响特性变化越平缓，内插值越接近理想值，逼近误差越小；反之，如果采样点之间的理想频响特性变化越陡，则内插值与理想值之间的误差越大，因而在理想滤波器不连续点的两边，就会产生尖峰，而在通带和阻带就会产生波纹。用频率采样法设计的实际滤波器频率响应如图1所示。由图1可知，实际滤波器的阻带衰减取决于内插函数第一旁瓣幅度值的大小，其大小决定了所设计的滤波器的阻带性能。(Interpolation function superimposed between sampling points of the frequency response is weighted within each sampling point and the formation of, and thus have a certain degree of approximation error. The size of this error depends on the shape of the ideal frequency response and the ideal frequency response characteristic change is more gentle, interpolated and more close to the ideal value, the smaller the approximation errors Conversely, if the sampling point between the ideal frequency response characteristics of the steeper the change, and then the interpolated the larger the error between the ideal value, and thus in the ideal filter both sides of the discontinuity point, will produce spikes occurs ripple in the passband and stopband. Actual design frequency sampling filter frequency response is shown in Figure 1. Figure 1 shows, the actual filter stopband attenuation depending on the interpolation value of the size of the first side-lobe amplitude of the function that determin)