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When a signal Sub-banded using [C,L] = wavedec(S,​8,waveletF​unction), How should I Calculate Energy of bands like Alpha Or Beta???

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meysam shirdel
meysam shirdel 22 Sep 2016
Answered: Wayne King 4 Oct 2016
When a signal Sub-banded using [C,L] = wavedec(S,8,waveletFunction), How should I Calculate Energy of bands like Alpha Or Beta??? I mean's that I must use D7 = wrcoef('d',C,L,waveletFunction,7) for Alpha and calculate Energy of D7 Or I must use cD7 = detcoef(C,L,7) and then calculate Energy of cD7?? which one is correct??
please help me

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Wayne King
Wayne King 4 Oct 2016
The energy should be calculated on the wavelet coefficients not a reconstruction (projection) as obtained with wrcoef. For this application, consider MODWT or MODWPT.

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