MATLAB - Troubles filtering very noisy signals using narrow pass band filter
MATLAB - Troubles filtering very noisy signals using narrow pass band filter
(OP)
Hello,
I am trying to filter a very noisy signal but using a narrow pass band filter there is an undesireded behavior on ressults.
While narrower the filter is applied, more signal sections becomes unusable. I apply filters type Chebishev TI and TII, elliptic and Butterworth.
The figure attached shows an undesirable effect: in the first seconds the filtered signal remains without values. For narrower filters, the apparition of signal values are delayed even more.
Thanks in advance.
I am trying to filter a very noisy signal but using a narrow pass band filter there is an undesireded behavior on ressults.
While narrower the filter is applied, more signal sections becomes unusable. I apply filters type Chebishev TI and TII, elliptic and Butterworth.
The figure attached shows an undesirable effect: in the first seconds the filtered signal remains without values. For narrower filters, the apparition of signal values are delayed even more.
Thanks in advance.

RE: MATLAB - Troubles filtering very noisy signals using narrow pass band filter
Gunnar Englund
www.gke.org
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RE: MATLAB - Troubles filtering very noisy signals using narrow pass band filter
TTFN (ta ta for now)
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RE: MATLAB - Troubles filtering very noisy signals using narrow pass band filter
Benta.
RE: MATLAB - Troubles filtering very noisy signals using narrow pass band filter
The more lightly damped, the higher the steady state amplitude for given excitation. But the higher that steady state amplitude the longer it takes to put in all that energy to achieve that steady state amplitude.
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(2B)+(2B)' ?
RE: MATLAB - Troubles filtering very noisy signals using narrow pass band filter
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(2B)+(2B)' ?
RE: MATLAB - Troubles filtering very noisy signals using narrow pass band filter
Check out Weiner filter.