神经网络PID参数自整定

This program gives a graphic of module, phase and amplitude of diferents kinds of filters, using guide.

这个文件编程实现了正弦调频的频谱图分布和乔伊-威廉斯分布，通过观察我们可以看到不同时频分布算法实现的不同特点(This file programming the frequency spectrum of a sinusoidal FM distribution and Joy- Williams distribution, we can see by observing the time-frequency distribution of the different features of algorithm implementation)

说明：  第2章 线性方程组求解 (jingtong matlab kexue jisuan )(Chapter 2 Solving linear equations (jingtong matlab kexue jisuan))

几何活动轮廓（GAC）算法的源代码，用upwind和eno数值方法， 在MATLAB下可直接执行(geometric active contour (GAC) algorithm source code, using upwind and eno numerical methods, MATLAB under the direct execution)

to find the negative of image.

帮助解决简单的tsp问题，随机生成50个城市的坐标，找寻最短路径(help learn matlab tsp problem)

说明：  基于simulink的光伏电池建模，输出为光照、温度条件变化之后的P-U和I-U曲线。(Based on the Simulink photovoltaic cell model, the output is P-U and I-U curves after the change of illumination and temperature conditions.)

用于批量多组向量求平均，平均光谱个数必须是相等的，如所有光谱每三个求一个平均(The average number of spectra must be equal for each batch of vectors, such as the average of every three of them)

说明：  采用matlab编程求信号的hurst指数........(hurst parameter using matlab..........)

对获得的512维小波特征进行了PCA降维处理，将特征空间降至100维，并采用前面得出的最佳系数针对多项式核函数和高斯径向基核函数(On access to the 512-dimensional wavelet features to reduce the dimension of the PCA, will feature space to 100 dimensions, and using the best coefficients obtained for the previous polynomial kernel function and Gaussian radial basis function)