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说明：   Direct Sequence Spread Spectrum

MatlabVisualization Package

说明：  BP神经网络的设计实例(MATLAB编程) (BP neural network design example (MATLAB Programming))

LS,最小二乘算法，初学者可以很好的应用 (Least-squares algorithm，Applications can be good for beginners)

this helps for understanding insar simulation

The proposed filter is able to suppress high-density of salt-and-pepper noise, at the same time preserving fine image details, edges and textures well.

对信号的FFT变换和有随即噪声信号的FFT变换，适合初学者学习(FFT transform of the signal and then noise signal FFT transform, suitable for beginners to learn)

主要对扩展卡尔曼滤波（EKF）、无迹卡尔曼滤波（UKF）及改进无迹卡尔曼滤波（MAUKF）算法进行研究，研究了三种算法的基本原理和各自的特点。其中扩展卡尔曼滤波器是将卡尔曼滤波器局部线性化，其算法简单，计算量小，适用于弱非线性、高斯环境。无迹卡尔曼滤波器是用一系列确定样本来逼近状态的后验概率密度。改进无迹卡尔曼滤波算法在UKF的基础上引入衰减因子。(Improved Kalman filtering algorithm)

power system tools for study of power systems load flow and stability small signal

弹性波在饱和多孔介质中传播的BISQ模型MATLAB源码(BISQ model MATLAB source code for elastic waves propagating in saturated porous media)