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Is it possible to create a user-defined block in Simulink (and, later, XCos) that accepts a variable number of signals (I anticipate working with mainly 12 signals but not necessarily that number of signals) and outputs the integral of all the signals? The signals will be a vector from a $Ax + Bu$ signal, where $x$ is a state vector and $u$ is usually a 1D unit step function.

This is an example with 3 signals http://airvigilante194.sdf.org/Scripts/deadbeatJeff.slx I would prefer not to split the signals, integrate each of them separately, then recombine them.

(Also, if someone knows a way to quantize all the signals without splitting, quantizing individually, then recombining, that'd be great, but that may be a post for another day.)

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  • $\begingroup$ By varying, do you mean varying from one run of the simulation to the next or will the number of signals vary dynamically during the simulation run ? $\endgroup$
    – AJN
    Commented Sep 15, 2021 at 11:54
  • $\begingroup$ Matlab-Simulink integrator block already has the ability to integrate multidimensional signals without splitting them. input : Port_1 — Integrand signal : real scalar or array. $\endgroup$
    – AJN
    Commented Sep 15, 2021 at 11:54
  • $\begingroup$ @AJN Varying from one run of the simulation to the next - as I change A, B, C, and K between runs $\endgroup$
    – Jeffrey Rolland
    Commented Sep 15, 2021 at 16:08
  • $\begingroup$ @AJN That's the best news I've heard all day! I'll look into that tonight and hopefully have my simulator up and running with a Jacobian matrix of a critical point of a somewhat real vector field tomorrow. $\endgroup$
    – Jeffrey Rolland
    Commented Sep 15, 2021 at 16:11

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(From @ANJ) Matlab-Simulink integrator block already has the ability to integrate multidimensional signals without splitting them. input : Port_1 — Integrand signal : real scalar or array.

(From me) Link is updated http://airvigilante194.sdf.org/Scripts/deadbeatJeff.slx and humming along perfectly.

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