The "problem" that the function is not defined at negative times tau
is a common one: it also happens e.g. in cross- and auto-correlation
formulae. A real-world sampled signal always is measured during a
finite period of time (mostly starting by convention at t=0), but
mathematically the formulae a
This is an extremely good point and I need to contact the authors of
this article who first used the Nonsymmetry coefficient and determine
the correct usage. I guess the reason I assumed multiplication is
because the value of fcc at (tau_max - tau) over the period of the
integration can result in
Per one of the authors:
"As for the nonsymmetry coefficient, this
integral is just a measure of the mirror symmetry of fcc around
taumax.
It would be zero if perfectly symmetric. The integration should really
be from 0 to +infinity, but as before, outside of some range of tau,
both fcc(taumax-tau)
Hello Franz:
I have contacted and left messages with the authors of the article
that I saw the formula in but your argument makes sense. I am
familiar with the FFT and correlation process and in fact we use the
hanning window to reduce the artifacts of the discrete fourier
transform just as you s
Hi Don,
I had a quick glance on your VI and the formula in it. This formula
contains terms like fcc(taumax + tau) which IMO are meant to read:
value of the (time dependent) function fcc at time (taumax+tau). In
your code however you calculate the product fcc * (taumax + tau) which
is of course qui