Regarding multiresolution wavelet analysis

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kunvar yadav
kunvar yadav 2013-12-21
评论： kunvar yadav 2013-12-22
Dear Sir, I am using lab-view Multi-resolution wavelet analysis for the below given values . 39.682 44.633 49.562 61.003 61.855 64.85 54.324 48.637 42.851 35.621 36.028 34.084 23.312 22.631 22.471 19.355 15.506 20.449 30.798 48.853 Output detailed coefficient final image is given below. Please suggest me stet by step calculation of detailed coefficient (D1,D2) and approximation coefficient (A1, A2) for the above given value. How to decide mother wavelet and decomposition coefficient ,high pass filter values and low pass filter values etc to get final result in the form of detailed coefficient (D1, D2).

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回答（1 个）

Wayne King
Wayne King 2013-12-21
Are you asking how to do a MRA in MATLAB? This is a MATLAB forum.
If so, then you can use wavedec() to give you a MRA and extract the details and approximation coefficients using detcoef() and appcoef()
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Wayne King
Wayne King 2013-12-21
You can certainly do the wavelet transform manually -- it's just convolutions and downsampling, but that is going to be really painful except for a very short signal.
How to do that is described in many, many textbooks.
kunvar yadav
kunvar yadav 2013-12-22
Thanks you sir, Please send me any Name or soft-copy of any book which having solution with example of MWT for signal.

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