NHT_52

该计算程序可以对无固定约束碰撞振动系统在激励力作用 下的系统响应进行计算，模拟系统动态响应，并自动判断颤振发生情 况，记录不同参数组合（阻尼比，质量比，恢复系数，间隙，频率比） 情况下系统的响应数据，输出发生颤振的参数组合数据。(The program can be used to study the impact force of a vibro impact system with no fixed constraint The system response is calculated, the dynamic response of the system is simulated, and the occurrence of chatter is judged automatically Different parameter combinations (damping ratio, mass ratio, recovery coefficient, clearance, frequency ratio) were recorded In the case of the system response data, the output parameters of flutter data are output.)

主要对扩展卡尔曼滤波（EKF）、无迹卡尔曼滤波（UKF）及改进无迹卡尔曼滤波（MAUKF）算法进行研究，研究了三种算法的基本原理和各自的特点。其中扩展卡尔曼滤波器是将卡尔曼滤波器局部线性化，其算法简单，计算量小，适用于弱非线性、高斯环境。无迹卡尔曼滤波器是用一系列确定样本来逼近状态的后验概率密度。改进无迹卡尔曼滤波算法在UKF的基础上引入衰减因子。(Improved Kalman filtering algorithm)

matlab stuff very fast

BPSK modulation with Hard decision type of coding.

一种非常实用的识别数字的matlab程序，内有使用说明(the code can be used to recognition numbers)

书籍《滑模变结构控制MATLAB仿真》,刘金琨,书中含有很多滑模变结构控制MATLAB仿真例子(《MATLAB simulation of sliding mode control》, Liu Jinkun, the book contains a lot of sliding mode control MATLAB simulation example)

基于matlab平台的蚁群聚类算法 很有用 (ant clusting)

Example of wavelet function Mexican hat, haar,

QEA for knapsack problem

用matlab语言实现陷波器，达到消除指定频率的谐波的功能(Language with matlab notch filter, to eliminate the function of the specified frequency harmonics)