T5_4

说明：  用于画出lorenz的利亚普诺夫指数，该文件算法优秀，比同类程序运算速度快很多(Draw for the Australian Punuo Fu Index lorenz)

10个阵元半波长间距的ULA,请画出其波束0度、-20度和45度的波束方向图，并计算其波束宽度(10 half-wavelength spacing array element ULA, please draw its beam 0 degrees, 20 degrees and 45 degree beam pattern, and calculate its beamwidth)

Matlab环境下利用霍夫变换和椭圆标准公式，在二值图像上自动检测椭圆并标记。(Matlab environment using Hough transform and oval standard formula, the binary image automatically detect and mark the ellipse.)

简单数字调制编程，方便初学者学习 简单数字调制编程，方便初学者学习(Simple digital modulation program, easy for beginners to learn simple programming of digital modulation, easy for beginners to learn)

Help ful for those programmers doing project

A sound generated within a room travels in many directions.

三结点三角形单元有限元计算程序 matlab编程(Three-node triangular element finite element program matlab programming)

this code is for iris image enhancement using gaussian filter

PSCAD tutorial,PSCAD入门实例，含多个基础模型DEMO，对于初学者掌握PSCAD的建模非常有用！强烈推荐，网上找不到这么齐全的。(PSCAD tutorial, PSCAD entry instance, the base model with multiple DEMO, very useful for beginners to master PSCAD modeling! Strongly recommended, not online so complete.)

％ y=filter(sig,fmin,fmax) ％ 对信号进行理想滤波，可完成低通，带通 ％ sig为被滤波信号 ％ fmin为下限频率，当fmin为0时为低通滤波器，当fmin>0时，为带通滤波器 ％ fmax为上限频率，fmax>fmin ％ fs为信号的采样频率 ％ y为经过滤波后的信号 (％ Y = filter (sig, fmin, fmax)％ of the ideal signal filtering, to be completed by low-pass, band-pass filter％ sig for signal％ fmin is the minimum frequency, when fmin for 0:00 for the low-pass filter, when fmin > 0, for the bandpass filter％ fmax is the upper limit frequency, fmax> fmin％ fs for signal sampling frequency％ y for the filtered signal)