punqai_v77

This is a image registration toolbox

几种图像处理源码 程序代码说明 P0301：数字图像矩阵数据的显示及其傅立叶变换 P0302：二维离散余弦变换的图像压缩 P0303：采用灰度变换的方法增强图像的对比度 P0304：直方图均匀化 P0305：模拟图像受高斯白噪声和椒盐噪声的影响 P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波 P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波 P0308：图像的自适应魏纳滤波 P0309：运用5种不同的梯度增强法进行图像锐化 P0310：图像的高通滤波和掩模处理 P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理 P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理 (err)

说明：   互信息：计算两幅图像之间的互信息(Mutual information: calculating the mutual information between two images)

this file is usefull for all student

identification linear regression model single tank

是一个matlab中的power system 中搭建的一个模型。可以仿真35KV电力系统线路发单项短路故障、两项短路故障、和三项短路故障的短路电流电压波形。(This is a model of building a matlab power in system. Simulation of 35kV Power line system billing short-circuit fault, two short circuit fault, and three short circuit fault short-circuit current and voltage waveforms. )

说明：  ofdma功率分配经典文献 "A Low Complexity Algorithm for Proportional Resource Allocation in OFDMA Systems"的相应MATLAB代码(MATLAB code for the corresponding OFDMA power allocation classic literature "A Low Complexity Algorithm for Proportional Resource Allocation in OFDMA Systems" )

无线路由协议PEGASIS仿真代码，考虑了能量和生存时间(The wireless routing protocol PEGASIS simulation code, taking into account the energy and the survival time)

虚拟示波器,硬件基于NI系列AD采集卡,软件基于Matlab7.9(virtual oscilloscope hardware config: National Instrument A/D card software config: Matlab 2009以上版本)

说明：  双PI闭环PWM整流器，可完美运行,网侧THD3.8%，直流侧电压启动超调量1%左右(Double PI closed-loop PWM rectifier, perfect operation, thd3.8% at grid side, 1% of DC side voltage start-up overshoot)