i want to obtain the cardiac sound characteristic waveform proposed in the paper available at following link
https://www.researchgate.net/publication/51994793_Comparison_of_Envelope_Extraction_Algorithms_for_Cardiac_Sound_Signal_Segmentation
the equation is: C1Y2(n)+C2Y1(n)+C3Y(n)=X(n), where X(n) is input discrete signal.
Article Comparison of Envelope Extraction Algorithms for Cardiac Sou...
Narasim Ramesh
...just a guess.. maybe what will help is Groebner basis .
see e.g https://reference.wolfram.com/language/ref/GroebnerBasis.html
" Basic Examples (1)
Compute a Gröbner basis:
In[1]:=GroebnerBasis[{x^2 - 2 y^2, x y - 3}, {x, y}]
Out[1] = ~9+2y^4 ,3x-2y^3 "
hope it helps
Cheers
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