Ethan Duni wrote:
.. The thing about this approach is that it requires very strong prior knowledge of the signal structure -
That reminds me of theories for which the applicability in the end appears to be such that the domain for the solution is the empty set...
If you know there's some number of harmonic components, in principle you can play a matrix solution game to find them out, but if the signal is random, even if it is frequency limited, you'll have to factor in all kinds of practical cases which include delays, beating patterns, transients measuring as harmonics, general signal estimation is quite a b*tch unless you go about all the relevant theories and practicalities in a qualitative and quantitative reasonable way, and understand all the connections.
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