4vol2no3

低通巴特沃斯滤波器设计求阶数，适合广大学生们参考，(Low-pass Butterworth filter design requirements order, for the majority of students reference)

Wind energy is one of the fastest growing energy and it will continue to grow around the world

利用方程产生 Lorenz 时间序列，十分有用(Lorenz equations )

说明：  自己编写的kalman滤波算法的应用，应用于惯性导航系统初始对准中，运动基座(I have written the application of kalman filtering algorithm used in inertial navigation system in the initial alignment, sports base)

turbo码的C程序，许多行前面都有些序号 请自己更正以后运行(turbo code of C procedures, many firms are some of the serial number in front of your own running after correction)

用matlab做的指纹提取的源码，具有很好的借鉴作用。(Using matlab to do the fingerprint extracted from source code, with a very good reference.)

tool box for grey wolf optimizer tool box for grey wolf optimizer

基于matlab将某个灰度值范围内的图像表现的更加突出，形成更好的对比。(Matlab will be a gray value within the image is more prominent, forming a better contrast.)

平方和分解的半正定规划构造Lyapunov函数的工具箱，多多交流，嘿嘿！(Sum of squares decomposition of the semi-definite Lyapunov function construction planning toolbox, interact more, hey!)

非局部滤波算法的MATLAB代码，适用于图形图像处理(Nonlocal filtering algorithm of MATLAB code, suitable for image processing)