ml

平面梁单元计算两铰抛物线拱的自由振动特性 采用平面梁单元计算两铰抛物线拱的自由振动特性 (Plane beam element calculation of the free vibration characteristics of two hinged parabolic arch)

simple image inpainting using low pass filter. The file removes red text for the image.

Empirical Frequency Domain Optimal Parameter Estimation (EFDOP)

The induction motor is fed by a current-controlled PWM inverter which is built using a Universal Bridge block. The motor drives a mechanical load characterized by inertia J, friction coeficient B, and load torque TL . The speed control loop uses a proportional-integral controller to produce the quadrature-axis current reference iq* which controls the motor torque. The motor flux is controlled by the direct-axis current reference id*. Block DQ-ABC is used to convert id* and iq* into current references ia*, ib*, and ic* for the current regulator. Current and Voltage Measurement blocks provide signals for visualization purpose. Motor current, speed, and torque signals are available at the output of the Asynchronous Machine block.

说明：  MATLAB中画椭圆的自定义函数：ellipse，用后才会发现这个函数的强大功能！ 在ellipse之函数当中，其输入之变数分别如下： -ra 椭圆之长轴半径，可为列矩阵，若为列矩阵时，代表可同时绘制许多椭圆。 -rb 椭圆之矩轴半径，可为列矩阵，如ra。 -ang 水平轴之倾斜角，以弧度表示。可为列矩阵，但ra、rb、ang三者之矩阵数应相同。 -x0,y0 圆心之座标，可为矩阵，若为矩阵时，代表可同时绘制许多不同圆心位置之椭圆。 -C 椭圆线之颜色 -Nb 绘椭圆时所用之点数。(MATLAB in the oval painting custom function: ellipse, will be found after using the power of this function! Ellipse of the function in which its input variables are as follows:-ra ellipse of major axis radius for the column matrix, if for the column matrix, a representative may at the same time drawing many elliptical. oval-rb-axis radius of the moment for column matrices, such as ra.-ang horizontal axis of the tilt angle to radians. Matrix for the column, but ra, rb, ang among several of the matrix should be the same.-x0, y0 the coordinates of the center for the matrix, if for the matrix, a representative may at the same time drawing a number of different oval center location.-C elliptic line color-Nb painted oval of points used.)

用M-B函数模拟分形表面轮廓并由结构函数法求出分形轮廓的分形维数(MB function is applied to simulate fractal surface profile and structure function method foe computing the fractal dimension of the fractal profile is proposed.)

NADAV LEVANON 与 ELI MOZESON 写的一本关于雷达信号分析非常专业并且经典的书。里面有很多的 matlab 相关资料。(Written by NADAV LEVANON ELI MOZESON a radar signal analysis is very professional and classic books.There are many Matlab codes inside.)

basic statistics of time series

讲述通信系统仿真的基本知识，包括基带数字传输和带限信道的数字传输的内容(Basic knowledge about the communications system simulation, including baseband digital transmission and digital transmission band-limited channel)

说明：  计算曲率，只是其中的一个子程序，xiwangkeyibangdaodajia，youbudongdekeyiwenwo(Calculate the curvature)