Not from this distance. But a similar, easily mathematiically described chaotic system (the Lorenz equation) is done with three integrators at
In general to get chaoticity you need nonlinear terms.
Integration generally smooths things out... in the most general case an RC integrator is also a low-pass filter.
Your description has words that are related to reality but without a schematic I don't think you'll get anything definite.
Tim.
The outputs need not be tied together for them to be "cross connected". But that term is not properly used to denote a situation other than each output somehow connected to the other's input.
The integrators are likely creating a low-pass filter.
If you look for "state variable filters", (or "state variable active filters"), you will see cross-connected integrators. For an example, see
That would be more of a treatise than I'm good for at the moment.
I have a set of instructions for producing a device which includes the following line:
"This low level signal (white noise) is fed through two cross-connected integration stages (op-amp integrators) producing a low frequency chaotic modulation signal."
Can anyone tell me how this "cross connection" is wired. My best guess is to wire the output of each integrator to the input of the other with their inverting inputs and outputs tied together.
It seems to be a strategy to derive second order modulation that does not result in feedback. Why it produces a "low frequency" component from white noise I do not understand.
I have never seen this done before, and the designer is no longer contactable.
Any opinions on how and why this works would be most welcome.
Mark
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