zhouchen

MATLAB常系数线性微分方程的解析解方法、微分方程问题的数值解法、特殊微分方程的数值解、边值问题的计算机求解、偏微分方程求解入门、微分方程的框图求解(MATLAB linear differential equations with constant coefficients analytic solution methods, numerical solution of differential equations the problem, special numerical solution of differential equations, boundary value problem by computer, partial differential equations to solve to introduce the block diagram of differential equations to solve)

analisis huella digital, con algortimos realizados en la gui de matlab

自己编写的关于连通域编辑的MATLAB程序。(I have written on the connected domain editing MATLAB.)

本文对RLS算法和LMS算法做了比较，说明了在同等条件下RLS算法的收敛速度比LMS的快，给出了仿真结果图。(The RLS alogrithm and LMS alogrithm is compared in this paper,and we can known the convergence rate of the RLS alogrithm is faster than that of LMS,we alse can see the fig of the simulation result.)

说明：  转子动力学计算横向振动固有频率的程序语句(Rotor dynamics program statement for calculating the natural frequency of lateral vibration)

gazdag的相移法偏移程序，经测试可以使用(migration )

simulink环境下的永磁同步电机的位置环控制，速度曲线为梯形曲线。(simulink environment of permanent magnet synchronous motor position loop control, the speed curve is a trapezoid curve.)

在matlab中，通过形态学提取图像的边缘，进行处理(In matlab, through the morphological to extract the edge of the of the image, for processing)

如上图所示，定向耦合器由完全相同的直波导与弯曲波导构成，波 导芯为宽高比相同（均为 a） 的正方形， 其工作波长，波导材料 对 TE 模式的折射率，及圆弧形弯曲波导的半径 r 等参数如图所 示，若波长为 1550 nm， 归一化光功率为 1 的光波从直波导输 入，请选择适当的满足单模工作的波导宽度 a， 然后给出从圆形弯 曲波导输出的归一化光功率 P4与两波导边缘的间距 d(Directional coupler by the same straight and curved waveguides constituting the waveguide, waves Conducting core is the same aspect ratio (are a) square, its operating wavelength, the waveguide material The refractive index of the TE mode and the arc-shaped curved waveguide of radius r and other parameters as shown Shown, if the wavelength of 1550 nm, normalized optical power a light straight waveguide input In, the appropriate work to meet the single-mode waveguide width a, and then is given a circular bend Curved waveguide output normalized optical power P4 and two edges of the waveguide spacing d)

-least squares algorithms using gradient descent to find minimum of function - gaussian fit algorithm