警察Kmeans聚类与MATLAB代码

1. 选择一个wav文件作为分析的对象，对该信号进行读取（使用wavread函数）； 2. 音乐信号的频谱分析：首先画出信号的时域波形，然后对信号进行频谱分析得到信号的频谱特性。 3. 设计一组数字滤波器并画出各个滤波器的频率响应 (Filter)

高速公路上关于车流量与速度关系，以及发生事故的可能性。(About the relationship between traffic volume and speed on the highway, and the possibility of accidents.)

用于计算面齿轮传动的误差分析，同时能够计算齿轮的啮合刚度，分析出传动精度(It can be used to calculate the error analysis of face gear transmission and the meshing stiffness of gears, and to analyze the transmission accuracy.)

 请用多层感知器（MLP）神经网络误差反向传播（BP）算法实现异或问题，并画出学习曲线。其中，非线性函数采用S型Logistic函数。

说明：  图像实验3空域滤波，在matlab环境下进行空域滤波(Experiment 3 spatial filter images in matlab environment with spatial filter)

使用PCA算法进行基于数据的故障诊断的程序(Data - based fault diagnosis program using PCA algorithm)

说明：  三相桥式整流电路，完美运行，导通角a=30度(Three phase bridge rectifier circuit, perfect operation, conduction angle a = 30 degrees)

说明：  台湾大学的关于EM算法的讲义，讲述的非常清楚，受益匪浅，特拿出来分享(Taiwan University, lectures on the EM algorithm, described in very clear benefit, particularly to share out)

该程序用matlab写成，已包含vof（根据Hirt的方法）内容，但该部分尚不成熟。对于不包含自由面的计算比较成功。(The program written with matlab, included vof (according to Hirt' s method) content, but that part is not yet mature. For the calculation of the free surface does not contain more successful.)

隐马尔科夫程序，主要用于语言识别，已经调试好叻，效果很好。(Hidden Markov program, mainly used for speech recognition, has good debugging Ratchasima, the effect is very good.)