S1

经典法，布莱克曼-图基法求谱估计，简单实用(Classical method, Blackman- map-based spectrum estimation method, simple and practical)

科研试验常用仪器，5209锁相放大器编程手册，可以用该手册对5209锁相放大器变成，非常实用。(Scientific research and test commonly used instruments, programming manuals 5209 lock-in amplifier, you can use the manual to the 5209 lock-in amplifier becomes very useful.)

一个MATLAB 图形处理软件，是标准的.m 程序，可以批量的对图片进行截图处理，读取截图范围内的强度积分值，并按照图片变 化绘制强度变化曲线。(A MATLAB graphics processing software, is standard .m program, you can batch processing of image shots, read intensity integral value within the range of screenshots and image intensity curve drawn to change.)

LMS RLS equalization simulation

使用matlab编程GUI界面模拟琴键，点击GUI按钮发出相应频率的声音(Simulation using matlab programming GUI interface keys, click on the GUI button corresponding frequency sound issue)

This code is used to dam-break problem in varied domain

实测一组机械系统的振动信号，记录采样频率、采样点数，估计该组振动信号的均值、均方值、方差、自相关函数和功率谱，其中功率谱估计对比频率平滑与分段平滑的效率，针对分段平滑、分析不同平滑次数对功率谱估计的影响(Found a mechanical vibration signal system, the recording sampling frequency, sampling points, the estimated mean the set of vibration signals mean square value, variance, autocorrelation function and power spectrum, wherein the power spectrum estimation and comparison of frequency smoothing piecewise smooth efficiency for piecewise smooth, analyze the impact of different smooth frequency power spectrum estimation)

关于四旋翼串级PID控制算法的MATLAB仿真。使用SIMULINK模块搭建。(The MATLAB simulation of the four rotor cascade PID control algorithm is presented. Using the SIMULINK module to build)

说明：  非线性最小二乘优化问题以误差的平方和最小为准则来估计非线性静态模型参数的一种参数估计方法。设非线性系统的模型为y=f(x，θ)，常用于传感器参数设定。(64/5000 A parameter estimation method based on the minimum sum of squares of errors. Suppose that the model of the nonlinear system is y=f(x,), which is commonly used for sensor parameter setting.)

kmeans算法的描述，源代码实现，matlab上 的程序(kmeans)