exercise1

由光学图像生成模拟微波图像，并分为水平极化和垂直极化两种情况(Analog optical image generated by the microwave image)

夫琅和费衍射的matlab仿真，对此方面做了比较详尽阐述(Fraunhofer diffraction of matlab simulation, which has done more elaborate)

empirical formula with kaiser clc clear all fs=1000 fc=250 df=50 r=0.001 f=fc/fs dw=2*pi*(df/fs) a=-20*log(r) n=floor(((a-8)/(2.285*dw))+1) if a>50 b=0.1102*(a-8.7) elseif a>=21 && a<=50 b=0.5842*((a-21)^0.4)+0.07886*(a-21) elseif a<21 b=0.0 end w=kaiser(n,b) for i=1:n if i~=(n-1)/2 hd(i)= (2*f*sin((i-((n-1)/2))*2*pi*f))/((i-((n-1)/2))*2*pi*f) elseif i==(n-1)/2 hd(i)=2*f end end for j=1:n h(j)=w(j)*hd(j) end subplot(3,1,1), plot(w) subplot(3,1,2), plot(h) subplot(3,1,3), plot(h,n)

小波变换程序,主要是提升小波的变换。包含两个程序，一个是子程序。(wavelet transform)

说明：  该命令流用于计算层剪切模型串并联体系的刚度矩阵(The command flow is used to calculate the stiffness matrix of the series parallel system of the layer shear model)

说明：  这是个滤波器设计程序编码，希望各位朋友看看！(滤波器设计)

说明：  在matlab中实现主成分分析方法，并使用FERET库的灰度图像进行测试(This package implements basic Principal Component Analysis in Matlab and tests is with grayscale portion of the FERET database. )

图像增强程序总汇，对各种增强方法进行了matlab的模拟和练习(digital image processing)

说明：  仿真了4种常见多径衰落信道，包括无人机信道(The four common multipath fading channel, including the uav channel)

principal component analysis