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Matlab编写BP的入门程序，适合初学者！(Matlab entry procedures for the preparation of BP, suitable for beginners!)

needed in manifolds learning,matlab codes

主要内容(signal_analyzer.rar)如下： test1.txt 第一列为时间t，0.001s为步长；第二列为系统的输入信号；第三列为系统的输出信号。 signal_analyzer.m首先将test1.txt 的数据读入workspace，然后进行FFT，分析出两信号的频率，输出对于输入的幅值衰减（db），输出对输入的相位差。 (Main Content (signal_analyzer.rar) as follows: test1.txt the first time as t, 0.001s for the step the second as the input signal the third as the system output signal. signal_analyzer.m first test1.txt the data read into the workspace, and then FFT, the frequency of the two signals, the output amplitude for input attenuation (db), the output of the input phase difference.)

用正则化公式X（k+1)=X(k)+t(A Y-A AX(k)-aL LX(k))来恢复图片(using the formula of X（k+1)=X(k)+t(A Y-A AX(k)-aL LX(k)) to resore image)

很强大的3d模式求解程序，可以求解各种结构的模式分布(3D mode solver,)

dct2的编程实现，用来压缩灰度图像，需要修改输入的图像名，保持和程序里的名称一致(dct2' s programming is used to compress grayscale images, need to modify the input image name, the name of maintaining and procedures where the same)

内容为 自适应复高斯雷达目标识别 的Matlab程序。 (Content adaptive reuse Gaussian radar target recognition Matlab procedures.)

convolutional code,create a matlab conde using in channel coding

用matlab语言编写的最小生成树kruskal算法的通用源程序 。(Using matlab language Kruskal minimum spanning tree algorithm for general-purpose source.)

提取音频的mfcc特征值 是一个matlab函数 直接调用即可(Extract audio mfcc characteristic value is a matlab function can be called directly)