tunning-PID-by-PSO

仿真锁相环系统，可以仿真锁定时间。不同的环路带宽对系统的非理想特性！(PLL simulation system that can lock simulation time. Different loop bandwidth of the system of non-ideal characteristics!)

matlab解决tsp问题,穷举法,不错的(matlab tsp, that is good)

说明：  供入门者使用的遗传算法程序，每个程序有详细的解释和说明，对刚步入研究生阶段的工科生有很好的帮助(A genetic algorithm program for beginners to use, each program has a detailed explanation and description, there is a good help for just entering the postgraduate students)

VLSI based question set

无刷直流电机基于双闭环simulink仿真，比较稳定的两个仿真(Brushless DC motor simulation based on double closed-loop simulink, two more stable simulation.)

使用hough变换来检测直线,先用log算子进行边缘提取后进行检测，效果非常好(line detection)

This source code is a one file implementation of 2d correlation and convolution. Using the basic difference between correlation and convolution this code correlates or convolves a given 2d matrix with a square window matrix (another 2d matrix) in an interactive manner in runtime and displays the output on user s choice.

Abstract— We propose a simple speech compression algorithm using subband division and ADPCM (Adaptive Differential Pulse Code Modulation) algorithm. Although speech data are stored in a semiconductor memory device, its capacity and the available network capacity are limited. Therefore, it is necessary to compress the data as much as possible. The first is that the reconstructed datum must be understood correctly. Speech signal is compressed with a ratio of 1/4 using the proposed subband division and ADPCM (Adaptive Differential Pulse Code Modulation) algorithm.

共轭梯度求解数值优化方法，本例题主要是对于一个常见的优化方法用MATLAB进行程序运行(Conjugate gradient method of solving numerical optimization, this example is mainly optimized for a common method using MATLAB running)

blasius problem to find the skin friction