Helmtz_cal_20141205

Block model of a phase locked loop implemented in Simulink. Step 2 of a series of 5 developed models.

The purpose of this program is to calculate the refractive index of a certain material. And you should import some basic optical parameters firstly.

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)

说明：  功率谱估计算法，很有效经典。非参数谱估计，APES算法，振幅与相位估计(Power spectrum estimation algorithm, very effective classic)

matlab,的LDPC码译码,matlab实现(LDPC code)

ICA领域大神Paris写的算法，通俗易懂，值得下载(Large areas of Paris wrote ICA algorithm God, straightaway, worth downloading)

说明：  本书适合于初学OFDM的人，英文原著，易于进行matlab编码学习(This book is suitable for beginners who OFDM, the English original, easy to learn matlab code)

explore the r g b components of a given image. see different images according to the r g b component chosen

瑞星升级小程序，自己开发，参考参考。瑞星升级小程序，自己开发，参考参考。瑞星升级小程序，自己开发，参考参考。(ruixing upade)

使用matlab分析传统光学系统加入三次相位掩模板之后的光学传递函数分析(Analysis using conventional optical systems matlab cubic phase mask after adding optical transfer function analysis)