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From: nethaji anandhavalli on 16 Apr 2010 10:00
hello sir,
i have got a signal, i have made dwt of it so,
[C,L] = dwt(y,'db4');

now i need to find the energy of those coefficients C and L. so i made this program. but when i run this, its keep on running, because, the signal range for 2000 samples. so wat i have decide is, based on threshold value, i can cut down some samples. where that threshold function need to inserted in between this program.? pls help me.


L=2000
N=2000
for i=1:L-1
for j=1:N-1

temp1 = ca1(i)
temp2 =ca1(j)
temp3 = temp1*temp2
energy1 = energy1 + (temp3 * temp3)
end
end
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