fshift

matlab S函数学习，举例仿真，可供初学参考着学习。(matlab S function to learn, for example simulation, for beginners reference of learning.)

频率估计问题一直是研究的热点。此为一个相位差法估计频率的程序代码，可供学习参考。(Frequency estimation has been the research focus. This is a phase difference method to estimate the frequency of the program code, for learning reference.)

遗传算法的概念最早是由Bagley J.D在1967年提出的；而开始遗传算法的理论和方法的系统性研究的是1975年，这一开创性工作是由Michigan大学的J.H.Holland所实行。当时，其主要目的是说明自然和人工系统的自适应过程。 (The concept of genetic algorithm by the Bagley JD was first proposed in 1967 and start method of genetic algorithm theory and systematic research in 1975, this pioneering work is undertaken by the University of Michigan JHHolland the practice. At that time, its main purpose is to describe the natural and artificial adaptive process.)

基于混沌序列的二值图像加密算法：提 出了一种以混沌二值序列为基础的图像加密算法 ， 改进了灰度差置乱度算法来评价二值图像加密 效果 ， 最后对混沌序列对初始条件的敏感性、 相邻像素差置乱度、 图像加密／ 解密速度进行了大量测试。(Based on Chaotic Encryption Algorithm of Binary Image: A chaotic binary sequences with an image encryption scheme based on improved gray scrambling degree difference algorithms to encrypt binary image evaluation results, the last of the original chaotic sequence conditions of the sensitivity of adjacent pixels difference scrambling, Image encryption/decryption speed of a large number of tests.)

matlab应用源程序，只能采集，网络连接(matlab application source code, can collect)

Biosig, is a biomedical signal processing toolbox

这是用汉语注释的EMD程序，很不错的。％ 语法 ％ IMF = EMD(X) ％ IMF = EMD(X,..., Option_name ,Option_value,...) ％ IMF = EMD(X,OPTS) ％ [IMF,ORT,NB_ITERATIONS] = EMD(...)(This is annotated in Chinese EMD procedures, very good. Syntax IMF = EMD (X) IMF = EMD (X ,..., Option_name, Option_value ,...) IMF = EMD (X, OPTS) [IMF, ORT, NB_ITERATIONS] = EMD (.. .))

速度分析 用于地震勘探速度分析及动校正（NMO）(Velocity analysis for seismic velocity analysis and NMO (NMO))

说明：  极其实用的matlab小程序 初学者必备(Very useful little program for beginners essential matlab)

addmitance matrix for solving load flow analysis