4ppmsystem

这个源码可以分析绘制多种信号的模糊函数，已经试验过巴克码，线性调频信号，脉冲信号等(Description: This program estimates and plots the ambiguity function for any signals. I have tested it for the Barker code, chirp signal, pulse signal. for good results the length of the input vector (Ut)should be more than 7. Example- a rectangular pulse should be described as[1 1 1 1 1 1 1]. Please, give your suggestions. it is made with the help of "xcorr" function (Author: R. Losada) in MATLAB and Ilia Iliev from TU-Sofia )

主成分分析matlab程序，里面包含子程序，运用时直接调用主程序即可，可用于无监督模式学习(Principal component analysis matlab program, which contains a subroutine, the main program can be called directly when applying, can be used for unsupervised learning mode)

一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 along the path he likes running, a dog suddenly attacked him, the dog ran at constant speed running, the dog always point to the direction of running, and calculate and draw the dog)

this file is a simulink file about dc and ac motor control

薛定宇《高等应用数学问题MATLAB 求解》习题参考解答,一本学习matlab不错的书(Xue Dingyu " higher MATLAB to solve mathematical problems" exercises reference answers, a good book to learn matlab)

说明：  在处理数据的时候我们经常要算各个区间的频数,但是在matlab中没有这样的命令.当数据比较大的时候自己数就比较麻烦,这里编了个小程序,(Handle data in a time when we often have to count the frequency of each interval, but there is no such matlab in command. When the data when the relatively large number of on its own is too much trouble here编了个small procedures,)

说明：   接收设备能对外界信息正确的接收、分析、处理的重要性是不言而喻的,它关系到社会的发展、人类的进步。然而在有用信号中往往伴随着噪声的存在。这种噪声分为电路内部固有的噪声与系统装置从外部接收而来的噪声。电路内部的噪声是系统固有的，与外界干扰无关，它可以通过对电路的合理设计、选择合理的元器件而得以控制。外部噪声主要由近几年的电子技术的高速发展，电子、电气设备的广泛应用而带来的电磁干扰引起的。这种噪声现象在工业发达的城市非常突出，它对各种系统接收装置的影响也越来越严重，使得这些系统装置不能正常工作，使得这些系统装置性能降低，甚至使得这些系统装置受到损坏。战胜噪声已是现代电子技术发展道路上必须逾越的巨大障碍。要解决噪声带来的问题需要我们从最基本的干扰源、信息传输通道（信道）、系统装置电路下手。(The receiving device and system noise)

改进的蚁群算法，加入了变异因子，产生变异，从而更快的收敛。(Improved ant colony algorithm, joined the variation factor, mutate, and faster convergence.)

稀疏分解信号重建程序，利用匹配追踪原理不断对信号匹配，最后达到重建信号目的。(sparse decomposition signal reconstruction procedures, the use of matching principle constantly tracking the signal matching, Finally signal to the redevelopment purposes.)

基于遗传算法的LQR控制器优化设计,利用MATLAB实现。(LQR controller based on genetic algorithm optimization design, the use of MATLAB.)