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GEOMETRICAL REPRESENTATION, PROCESSING, AND CODING OF VISUAL INFORMATION

利用熵（entropy）及多變量GM(h.N)模型的觀念，探討灰色理論於權重之分析(use of entropy (entropy) and multivariable GM (h.N) model concepts, Gray explore theories Weight Analysis)

该文件被用于人工数据集的测试。这些数据都是随机生成的。在百度中也可以搜索到相关内容。数据集名字为ultwotwo(this file can used for Performance Comparison on Artificial Data)

emd和eemd可用于信号去噪，提取瞬时频率。(emd and can be used to signal de-noising eemd extracting instantaneous frequency.)

Kalman工具箱,用做卡尔曼滤波的好工具！(Kalman toolbox,a good toolbox for carring out kalman filter.)

chirp信号的短时傅里叶变换源代码，雷达、信号处理等领域，可实现对chirp信号的短时傅里叶变换(short-time Fourier transform source code field chirp signals, radar, signal processing can be realized on short-time Fourier transform chirp signal)

matlab calculator program

说明：  直流微网继电保护策略实现S-function的M文件，主保护为母线直流差动保护，基于小波分解的高频故障电流保护，后备保护为过电流保护，针对系统为2进2出的微网，只需将电流值输入，其中第一个输入变量为开关，为保护算法控制开始/关闭。(The relay protection strategy of DC microgrid realizes the M file of S-function. The main protection is busbar DC differential protection. The high frequency fault current protection based on wavelet decomposition and the backup protection is overcurrent protection. For the microgrid with 2 in and 2 out of the system, only the current value is input. The first input variable is switch, which starts/closes for the control of the protection algorithm.)

说明：  可以实现信号的降噪，对信号进行奇异值分解，里面有噪声信号和原始信号，可以用来进行对比(It can reduce the noise of the signal and decompose the singular value of the signal)

该程序可用matlab实现三种滤波：切比雪夫1,切比雪夫2和巴特沃斯滤波。可实现信号的滤波预处理。(The program can be used to achieve three filtering matlab: Chebyshev 1, Chebyshev 2 and Butterworth filter. The filter can be realized signal preconditioning.)