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Re: filter coding
thanx bulx...that is very helpful...bulx..can you help me on the coding, what is the purpose of each coding?i really new o the matlab and the filter coding...please
R = 50;
d = rand(R,1)-0.5;
m = 0:1:R-1;
s = 2*m.*(0.9.^m);
x = s + d';
figure(1)
plot(m,d,'r-',m,s,'b--',m,x,'g:')
xlabel('Time index n'); ylabel('Amplitude')
legend('d[n]','s[n]','x[n]');
pause
M = input('Number of input samples = ');
b = ones(M,1)/M;
y = filter(b,1,x);
figure(2)...
design a lowpass filter with following specifications:
o 1500 c f = Hz and 1650 s f = Hz.
o No ripple in passband is allowed.
o Your filter order should not be more than 15. (Check the right panel to see the
order of your filter)
o s R should be at least 30 dB.
• Apply your filter to the noise...
eeg fiter
my task ask to write an algorithm for filtering random noise for eeg signal..
i want to do butterworth, bandpass filter...can any body help me...
and one more thing...can anybody explain this algorithm one by one....and how to improve the filter?
please...i'm new to matlab...
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