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[EditBox] CEdit_Caculator_Matlab DL : 0: 一个扩展的CEdit类，可以直接计算数学表达式，目前不支持变量，但可以支持pi、e等常数。具体请看里边的图片说明。-an expansion CEdit category, and can directly calculate mathematical expressions that do not support variable, but it can support pi, e, etc. constant. For details, please read the caption inside.
Date : 2008-10-13 Size : 74.73kb User : 郑明
[EditBox] CEdit_Caculator_Matlab DL : 0: 一个扩展的CEdit类，可以直接计算数学表达式，目前不支持变量，但可以支持pi、e等常数。具体请看里边的图片说明。-an expansion CEdit category, and can directly calculate mathematical expressions that do not support variable, but it can support pi, e, etc. constant. For details, please read the caption inside.
Date : 2026-01-02 Size : 74kb User : 郑明
[EditBox] 11 DL : 0: 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) - 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)
Date : 2026-01-02 Size : 80kb User : rezwan