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example of 2D tikhonov regularization tools

matlab实现对伪随机序列PN码非均匀采样程序(PN code matlab realize the non-uniform sampling procedures)

this matlab code is for the FDTD 2D

采用bootstrap方法重抽样，可以将小样本变成大样本，适合乏信息问题(Resampling bootstrap method, small samples can be turned into a large sample suitable for lack of information problem)

说明：  这是用于对球体重力进行反演的程序，所用算法是共轭梯度法(This is for the sphere of gravity inversion procedure, the algorithm used is the steepest descent method)

mathmatic程序 这是一个用MATHMATIC 做出来的关于:HUFFMANR的函数图像的程序,有一定的参考价值.(mathmatic This is a procedure used MATHMATIC done on : HUFFMANR function of the image process, a certain reference value.)

说明：  一个实用的基于matlab的pso源代码(a practical Matlab-based source of PSO)

单自由度系统对初始条件和简谐激励相应 由单自由度的运动方程和初始条件得到二阶非齐次常微分方程，它的解有对应的齐次方程的通解和非齐次方程的特接构成。(Single degree of freedom system to initial conditions and the corresponding harmonic excitation Special general solution of the equations of motion and initial conditions by a single degree of freedom to get the second order non-homogeneous ordinary differential equations, its solution has a corresponding homogeneous equation and non-homogeneous equation then constituted.)

无迹卡尔曼滤波的matlab编程，运行无障碍，给想要学习该算法的你(Unscented Kalman filter matlab program, run barrier to the algorithm you want to learn)

matlab柱状图填充图案 可以实现黑白的填充(apply hatch Matlab histogram fills the pattern Black and white can be achieved by filling)