Optimal-design-of-PID-parameter

清华大学机械原理课面试题目，复杂机构的计算机模拟源代码(Tsinghua mechanical principle course of interview questions and complex computer simulation of the source code organization)

winner2信道，多输入多输出无线通信的信道模型仿真(winner2 channel, multi-input multi-output wireless communication channel model simulation)

横坐标是时间，纵坐标是频率，matlab绘制时频图的小程序(Time frequency pic)

基于FFT的功率谱分析程序设计与应用 2）对实验所采集的转子振动信号进行频谱分析 2．讨论： 1) 信号经过均值化处理或不经过均值化处理的结果比较 2）采用不同窗函数时的谱结果（矩形窗函数, 汉宁窗函数，汉明窗） 3）典型函数的频谱（矩形窗函数, 汉宁窗函数，直线，阶跃函数，δ函数，方波，三角波等） 4）整周期和非整周期采样时两者的比较 5）讨论实验结果 (Based on the FFT power spectrum analysis of program design and Application2) on experimental collection of the rotor vibration signal spectrum analysis2 discussion:1) the signal through the mean treatment or not after a mean treatment results comparison2) using different window function spectral results ( rectangle window, Hanning window function, the Hamming window )3) the typical functions of spectrum ( rectangle window, Hanning window function, linear, step function, function, square wave, triangular wave)4) the whole cycle and non-integer-period sampling time comparison5) discussion of experimental results)

this code is for speech recognition

维纳滤波的四个实现 包括文档和matlab代码，对原理阐释的十分详尽(Wiener filtering of the four to achieve, including documents and matlab code, very detailed explanation of the principles of)

Progamming for MATLAB beginners

说明：  matlab环境下的多路串口数据实时绘图显示，GUI界面。(matlab environment in real-time multi-channel serial data graphics, GUI interface.)

number of errors reported in a file. int errors .

本程序是求解神经电另一chay方程的较为简单的例子。还有一个非线性物理中的Lorenz模型。可以帮助大家了解神经放电的问题()