【数字图像处理】常见噪声及其Matlab实现

This program is to plot 3-D radiation pattern of 2-element array antenna.

个慢跑者在平面上沿着他喜欢的路径跑步，突然一只狗攻击他，这只狗以不变的 速度跑向跑步者，狗的方向始终指向跑步者，计算并画出狗的运动轨迹（如需其他 条件，请自己假定）(A jogger in the plane running along the path of his favorite, a dog suddenly attacked him, the dog ran a constant speed runners, always point to the direction of the dog runners, calculate and draw the trajectory of the dog (For other conditions, at your own assumptions))

matlab最基本的卡尔曼滤波的算法，最最基本的，就5步5句话，可以任意移植(matlab basic Kalman filter algorithm, the most basic, step 5 of the fifth sentence, can be transplanted)

本章先分析说明伪谱法求解波动方程的算法原理，再给出弹性波场伪谱法数值模拟的改进算法；然后，通过直接引入P波波场变量和S波波场变量，给出可实现弹性波场的P波和S波分解的波动方程，并用伪谱法实现弹性波场的P波和S波分解的数值模拟；最后用伪谱法对井间地震的复杂波场作数值模拟，分析井间地震波场中各种波的传播规律。(In this chapter, the principle of pseudo-spectral method for solving wave equation is analyzed, and then an improved algorithm for numerical simulation of elastic wave field is given. Then, by directly introducing P-wave field variable and S-wave field variable, the wave equation which can realize P-wave and S-wave decomposition of elastic wave field is given, and the P-wave sum of elastic wave field is realized by pseudo-spectral method. Numerical simulation of S-wave decomposition; finally, pseudo-spectral method is used to simulate the complex cross-well seismic wave field and analyze the propagation law of various waves in cross-well seismic wave field.)

This function produces a numerical approximation to 2D Gabor function

（1）matlab入门第一步，基本的matlab操作，轻轻松松进阶matlab((1) matlab Getting a first step, the basic matlab operation, easily advanced matlab)

点目标生成，在此基础上采用DBS方法成像。(Point target generation. Based on this, we use DBS method to imaging.)

说明：  西储大学轴承数据，故障特征频率明显，与理论值基本符合。(The bearing data of Xichuan University have obvious fault characteristic frequency, which is basically in accordance with the theoretical value.)

用前推回代法编写了一个算8节点配网潮流的程序，解压后就可以直接运行(With forward and backward substitution method to write an 8-node distribution network power flow calculation program, named after the needs of the non-alphanumeric characters removed after decompression, it can be run directly)

matlab注水算法的代码，详细描述了注水算法的过程。(matlab water algorithm code, a detailed description of the process water algorithm.)