bf-boattracking

共轭梯度法（Conjugate Gradient）是介于最速下降法与牛顿法之间的一个方法，它仅需利用一阶导数信息，但克服了最速下降法收敛慢的缺点，又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点，共轭梯度法不仅是解决大型线性方程组最有用的方法之一，也是解大型非线性最优化最有效的算法之一。 在各种优化算法中，共轭梯度法是非常重要的一种。其优点是所需存储量小，具有步收敛性，稳定性高，而且不需要任何外来参数(Conjugate Gradient method (Conjugate Gradient) is between the steepest descent method between Newton method and a method, it only USES a derivative information, but overcome the steepest descent method slow convergence of weakness, but also avoid the Newton law needs to storage and computing Hesse inverse matrix and shortcomings, Conjugate Gradient method is not only solve linear equations with most of the large method, and also one of the most effective solution large nonlinear optimization of one of the algorithm. In all kinds of optimization algorithm, the conjugate gradient method is very important. Its advantage is the storage capacity needed, it has small step convergence, high stability, and doesn t require any exotic parameters numerical experiment, this is the modern scientific computing of the answer above problem sets)

是基于四阶累积量的旋转不变因子ESPRIT算法，在matlab环境下实现(Is based on the cumulative amount of rotation of fourth-order constant factor ESPRIT algorithm in matlab environment to achieve)

基于坐标变换的三相交流异步电机模型，采用maltab/simulink建立的模型，三相交流电压型输入。(Motor model based on coordinate transformation maltab/simulink established model, three-phase AC voltage input.)

pv mppt modeling, perturb and observation

NUMERICAL OPTIMIZATION: This is steepest descent method with constant step length to find the minima of f(x, y) = xy exp(− 2x^2 − y^2 + 0.3y) Graphical represxentation in 5 ways of solution, simple and clear explained. (NUMERICAL OPTIMIZATION: This is steepest descent method with constant step length to find the minima of f(x, y) = xy exp(− 2x^2 − y^2+ 0.3y) Graphical represxentation in 5 ways of solution, simple and clear explained. )

该代码主要用于求解微分方程问题，他是由Matlab编写而成。(The code is mainly used for solving differential equations, he is prepared from Matlab.)

该程序涉及了一阶系统、二阶系统的阶跃响应下的系统辨识方法。(The procedure involves first-order system, second-order system step response of system identification methods.)

对stoke 方程的非协调员的新型解法,效率高，求解时间段等特点(a new method for stoke equation)

使用kalman滤波器估计异步电动机转速，仿真结果表明效果良好(use the kalman filter identify the speed of the asychronous moter,and the result is very good)

MATLAB7 使用教程，从基础篇到高级，结合了图形说明，易学易懂(MATLAB7 Desktop Tools and Development Environment.This book is a basic course of matlab. )