Astar三维

光学双稳特性曲线 调制作用:It=Ii*T(phi) 反馈作用:phi=phi_0+K*It 得透射率T(phi)与相移phi的反馈关系是 T(phi)=[phi-phi_0]/[K*Ii] 式中phi_0为初始相移 对于多干涉(F-P干涉)有: T(phi)=1/[1+F*(sin(phi/2))^2](Optical bistable characteristic curve modulation role: It = Ii* T (phi) feedback: phi = phi_0+ K* It may transmittance T (phi) and phase-shifting relationship between phi feedback T (phi) = [phi-phi_0 ]/[K* Ii] where phi_0 for the initial phase shift for the multi-interference (FP interference) are: T (phi) = 1/[1+ F* (sin (phi/2)) ^ 2])

说明：  用MATLAB实现水平集分割图像，效果较为理想(Using MATLAB to achieve the level of set partitioning image, the effect is more ideal)

高压断路器振动信号时频特征分析，STFT变换以及功率谱，matlab代码(High voltage circuit breakers，STFT)

牛顿迭代法求解线性方程，其收敛阶数为1次(newton iteration for liear equation)

说明：  基于MATLAB软件的交流永磁同步电机调速系统研究 介绍了一种采用磁场定向理论控制交流永磁同步电机的调速系统，应用现代控制理论对 电机直交轴耦合分量进行了解耦，并利用经典控制理论设计了电流环和角速度环调节器。MATLAB 仿真 结果证明了该方法的有效性，但系统调试时仍需根据具体情况适当调整以得到更理想的效果。(MATLAB software based on the exchange of permanent magnet synchronous motor speed control system introduces a theory of the use of field-oriented control of AC permanent magnet synchronous motor speed control system, the application of modern control theory on DC motor shaft coupling the decoupling components and to make use of classical control Theoretical Design of a current loop and the angular velocity of ring modulator. MATLAB simulation results prove the effectiveness of the method, but the system still need to debug when appropriate adjustments in accordance with specific circumstances in order to obtain better results.)

Contain two matlab code : - ApEn and per_entr to calculate entropy of permutation

说明：  基于matlab的图像配准程序，算法使用的是sift原理，配准效果良好(Matlab based image registration procedures, the algorithm uses the principle of SIFT, registration good results)

说明：  mppt最大功率追踪，一种新的占空比法，是爬山法的一种(MPPT maximum power tracking, a new duty cycle method)

matlab的标定工具箱,功能强大.可进行摄象机标定(matlab calibration toolbox and powerful. camera calibration can be carried out)

说明：  这是Rafael C.Gonzalez(冈萨雷斯)的matlab英文版，是数字图像处理的经典教材(this is a book about the digital image process ,it is very classical.)