LiLiuSuballo

signal processing about OFDM simulation

将原信号进行EMD分解，得到一系列IMF分量，这些分量是按频率从高到低排列(EMD decomposition of the original signal to obtain a series of IMF components, which are arranged according to the frequency high to low)

it describes the image analysis using matlab

该matlab程序用于目标识别 找出想要的目标从二维图像里面(This program detects a target in an image)

基于MATLAB的自适应模糊PID控制系统计算机仿真(MATLAB-based adaptive fuzzy PID control system computer simulation)

用matlab实现音频处理功能，两个音频文件模和相位互换，比较互换之后的音频文件的效果(using Matlab achieve audio processing functions, two audio files modulus and phase swap Comparing the exchange of audio files after the results)

交互式选取生长起始点，将感兴趣部分分割出来。(Select starting point for interactive growth, will be interested in part from it.)

Eigen value - Eigen vector - Matlab code

在MIMO2*2的无线信道环境下，运用OFDM(Orthogonal Frequency Division Multiplexing)即正交频分复用技术，发送信号，经过奇异值分解预编码，调制，在接收端解调，均衡，最终等到估计信号，并计算了整个系统的误码率；(In the wireless channel environment MIMO2* 2, the use of OFDM (Orthogonal Frequency Division Multiplexing) that is an orthogonal frequency division multiplexing, transmission signal, through a singular value decomposition of the pre-encoding, modulation, demodulation at the receiver, equalization, until the final estimated signal, and calculate the error rate of the whole system )

说明：  电机参数 鼠笼异步电机 基本参数：Pn=2200W Un=380V fn=50Hz J=0.19Kg·m2 磁极对数p=2 定子电阻：0.435ohm 电感0.002H 转子电阻：0.816ohm 电感0.002H Lr=Lm+Llr=0.069+0.002=0.071 励磁电感：Lm=0.069H Tr=0.087=Lr/Rr=0.071/0.816 调节器参考值 ASR的 Kp=3.8 Ki=0.8 积分器限幅-80~80 调节器输出限幅-75~75 ATR的 Kp=4.5 Ki=12 积分器限幅-65~65 调节器输出限幅-60~60 APhirR的 Kp=1.8 Ki=100 积分器限幅-15~15 调节器输出限幅-13~13 给定转速为1000转 空载启动 在0.6s时加载55N·m的负载 如果积分没有初值 那么这个积分没有办法计算(Squirrel cage asynchronous motor)