I've seen on the archives, and experienced myself, that GR does not support having loops in the flow graph.
I would like to get some more insight on this limitation to understand 1.the reasons for it and 2. how to workaround
it in those cases where a feedback loop is a key solution.
Naively, I try asking if it would be acceptable to detect the presence of at least 1 sample delay in the loop and
apply a kind of initial condition (or simply a 0 initial value) to boot the computations.
Where in the code the loop detection is implemented?
Thanks in advance
alberto
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