NaN in deconvolution

2011 12 14

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Hi guys,

I am stuck with a deconvolution part in my program. I have a filter o/p and the filtered o/p, but they both have zeros and numbers too. When I am trying to deconvolute, it returns "NaN" values. Is there any solution to it? I m stuck here for days. Please help me.

Thanks and regards,

Raj.

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Amith Kamath 2011-12-14

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Since your data has zeros in them, deconvolution may return NaNs because you are dividing by zeros. What you could do is either of these:

try by adding 'eps' to all the zero values, so that it results in finite values, although not exactly accurate,

or, remove the NaN values by using ~isfinite or ~isnan.

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Walter Roberson 2011-12-14

even_val=deconv(eps+fil_sig_demod_even,eps+fil_op);

raj0689 2011-12-15

thanks Walter :) its working , but still i am not able to reverse my modulation.. getting lots of errors in getting +1s and -1s.. :(

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