ex_14_01

用变形核密度模型对数据的统计分布进行估计，常用于金融信用分析、财产保险精算等领域，是一个很有效、常用的非参数模型(Deformation of the nuclear density model of the statistical distribution of the data to estimate the financial credit analysis, property insurance and actuarial fields, is a very effective and commonly used non-parametric model)

用快速傅立葉轉換來求出訊號頻譜的練習過程，並舉一個實例:用FFT來算方形孔徑的遠場繞射(Exercises of the signal spectrum is obtained using a fast Fourier transform FFT to count the the square aperture far-field diffraction)

大学数学实验实验三中的编程练习题目源代码(University Mathematics Experiment Experiment 3 programming source code practice questions)

student s experiment majored in automation

数值解法 例1 用改进的欧拉方法求一阶方程初值问题的 数值解 例2 数学摆的运动方程与近似方程数值解比较 例3 四阶龙格库塔公式求数值解 Matlab实现求数值解 例1 求初值问题y =x*sin(x)-y,y(0)=0的数值 解.先编辑一个定义方程的ODEF函数文件 ODEfun1.m. 例2 求方程组初值问题的数值解,按指定步长 0.05划分节点. 例3 按指定的精度求高阶方程初值问题的数值解.(Numerical Solution of the law a method of using the improved Euler' s equation of order to a first-order initial value problem of the numerical solution of cases of two mathematical pendulum equations of motion compared with the approximate numerical solutions of equations of three cases of fourth-order Runge-Kutta numerical solution of the formula Matlab order to achieve the numerical solution of demand cases seeking an initial value problem y ' = x* sin (x)-y, y (0) = 0 the numerical solution. first, the definition of an equation editor ODEF function file ODEfun1.m. cases of two demand equations initial value problem of numerical solution, according to the specified division of the node step 0.05. Example 3 according to the specified precision of seeking higher-order equation of the numerical solution of initial value problem.)

This program has been written using Matlab/Simulink software. It can be used to find out the behavior of the induction motor behaviore when fed from a PWM inverter. The program is written so that the user can simulate any induction motor he wants by just loading the electrical and the machanical parameters in the workspace. The induction motor is modelled by the 7th order dq model which takes the iron loss component into account. The motor works in open loop but the closed loop can be easly performed by just adding the vector controller or any other controller and a PI speed controller.

Simulink power phase lock loop

匹配滤波器在线性调频脉冲中应用举例程序。用matlab绝对可以实现。(Linear chirp matched filter application examples in the program. With matlab can definitely be achieved.)

室内环境射线跟踪算法研究，室内反射点追踪的计算(Indoor environmental ray tracing algorithm to calculate the reflection point indoor track)

OFDM系统仿真OFDM系统仿真OFDM系统仿真OFDM系统仿真(OFDM System Simulation OFDM system simulation OFDM system simulation OFDM System Simulation)