exam_fourier

一维正弦调制脉冲传播演示，PML吸收 a a a (a one demension sin wave demonstration, PML absorbed boundary a a a a a a a a a a)

一个dbn例子函数，dbntrain,用于设置训练相关的参数。(a dbntrain function for dbn.It is used for set the train para.)

第1章MATLAB操作基础 第2章MATLAB矩阵及其运算 第3章MATLAB程序设计 第4章MATLAB文件操作(Chapter 1 MATLAB operation based on MATLAB matrix in Chapter 2 and Chapter 3 of computing MATLAB Programming Chapter 4 MATLAB file operations)

主要内容(signal_analyzer.rar)如下： test1.txt 第一列为时间t，0.001s为步长；第二列为系统的输入信号；第三列为系统的输出信号。 signal_analyzer.m首先将test1.txt 的数据读入workspace，然后进行FFT，分析出两信号的频率，输出对于输入的幅值衰减（db），输出对输入的相位差。 (Main Content (signal_analyzer.rar) as follows: test1.txt the first time as t, 0.001s for the step the second as the input signal the third as the system output signal. signal_analyzer.m first test1.txt the data read into the workspace, and then FFT, the frequency of the two signals, the output amplitude for input attenuation (db), the output of the input phase difference.)

MATLAB三次样条插值法 求信号的包络线 源代码 MATLAB使用欧拉Euler法求解微分方程组 源程序代码 MATLAB四阶龙格库塔法 求解微分方程数值解 源程序代码 MATLAB实现txt文本数据分离的源程序代码 MATLAB实现不同插值方法的GUI界面设计 源程序代码 MATLAB实现偏微分方程的差分计算 源程序代码 MATLAB实现单摆在外力矩作用下的动画 源程序代码 MATLAB实现图像中值 均值 维纳滤波 源程序代码 MATLAB实现图像分割otsuf 源程序代码 MATLAB实现图像去噪 滤波 锐化 边缘检测 源程序代码 MATLAB实现学生成绩查询系统 源代码程序 MATLAB实现正方体旋转 源程序代码 MATLAB实现灰度预测模型的源代码 MATLAB实现线性拟合和相关系数 源程序代码 MATLAB实现股票价格预测 源程序代码 MATLAB求解偏微分方程（扩散方程）有限差分法 源程序代码 MATLAB求解无穷区间定积分问题 源程序代码 MATLAB求解混沌系统微分方程组 MATLAB求解矩阵的特征值 源程序代码 MATLAB求解非线性方程组 fsolve源程序代码 MATLAB求解非线性最小二乘法拟合问题 源程序代码 MATLAB牛顿法求解非线性方程组 源程序代码 MATLAB生成Gif图片程序源代码 MATLAB设计的简单滤波器程序源代码(MATLAB cubic spline interpolation request signal envelope source code MATLAB Euler Euler method to solve differential equations of the source code MATLAB fourth-order Runge-Kutta method to solve differential equations MATLAB source code to achieve txt text data separation MATLAB source code to achieve different interpolation methods GUI interface design source code MATLAB source code to achieve the difference calculation of partial differential equations MATLAB animated source code under the pendulum effect of the external torque values ​ ​ mean in MATLAB to achieve image Wiener filtering source Code MATLAB image segmentation otsuf source code MATLAB for image Restoration filter sharpening edge detection MATLAB source code to achieve student achievement inquiry system source code program MATLAB source code MATLAB rotating cube to achieve grayscale forecasting model source code MATLAB for linear fitting and correlation coefficient MATLAB source code to achieve stock price pred)

语谱图的实现过程，对于初学者有很大的帮助(Spectrogram of the realization of the process, very helpful for beginners )

实现RBF神经网络，用MATLAB的M语言开发的(RBF neural network implementation with MATLAB M-language development)

说明：  里面有关于matlab图像处理的函数的详细介绍和例子。(There are on the matlab image processing function of the detailed introduction and examples.)

电力系统的潮流MATLAB计算问题 可以方便的计算潮流(MATLAB power flow calculation problem can easily calculate the trend )

FFT explaining code, step by step for fresh learners of matlab and FFT