abrupt_transition_detection

本程序给出了通信体制中十分重要的chirp信号（即线性调频信号）的产生方法，希望能对大家有一定的用处(This procedure gives a very important communication system chirp signal (ie, linear FM signal) is produced, and I hope we can have some useful)

子相干模板法，用于消除50Hz噪声信号干扰(COHERENT template method for eliminating noise 50Hz signal interference)

这是天津大学胡清华老师在粗糙集邻域领域做的最经典的源码，同学们可以在此基础上学习和修改，入口程序已经写好，需要其他方法可以自己添加，MAIN.m是入口程序，参数的意思在子函数里讲的很明白，调用了featureselect_FW_fast.m用来属性约简，几个clsf_dpd文件是使用不同的距离公式来计算属性重要度，选择得到属性结果，使用crossvalidate.m十折交叉算法来计算计算算法精度，该段代码调用了几个分类器，C4_5.m是决策树，KNN.m是最近邻分类器，NEC.m是类似于KNN的胡修改的程序，osu_svm3.00文件夹是使用svm分类器调用的文件，使用该分类器时，代码中间的路径需要修改。另外附上一堆常用的数据集。(This is Hu Qinghua teacher at Tianjin University neighborhood rough set field do the most classic source code, students can learn and modify On this basis, the entry procedures have been written, you need other ways to add your own, MAIN.m entry program is meaning parameters Functions talked in very clear call for the featureselect_FW_fast.m attribute reduction, several clsf_dpd file is to use a different formula to calculate the distance attribute importance, choose properties to get the results, use crossvalidate.m ten fold cross algorithm to calculate the accuracy of the calculation algorithm, the segment code calls several classifiers, C4_5.m is a decision tree, KNN.m is the nearest neighbor classifier, NEC.m is similar to KNN Hu modified program, osu_svm3. 00 folders using svm classifier called file, using the classification code in the middle of the path need to be modified. Also attach a bunch of common data sets.)

说明：  基于matlab的分形软件，用于分形维数的计算(Matlab fractal-based software for the calculation of fractal dimension)

说明：  BPSK信号调制解调，在AWGN与RAYLEIGH信道下的无码性能！(BPSK signal modulation and demodulation in AWGN channel with RAYLEIGH-free code performance!)

此为模糊PID自适应控制程序，可以用于仿真或者实验，经过本人验证可直接运行(This is a fuzzy adaptive PID control procedures can be used to simulate or experiment can be run directly after I verify)

该程序完成高斯赛德尔潮流计算的功能，对初学者很有帮助。(The program completed high Sisaideer flow calculation function, useful for beginners.)

该程序采用matlab语言编程，能够计算水锤压力随时间的变化。(The program is programmed in MATLAB language and can calculate the change of water hammer pressure with time.)

二维光子晶体弯折波导的计算程序，不过只有TM模，但TE模恨容易就能从中重写出来(Two-dimensional photonic crystal waveguide)

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