Robuta

https://ojp.gov/ncjrs/virtual-library/abstracts/continuous-signal-controlled-selective-signaling
continuous signalcontrolledselectivesignalingoffice
https://www.mathworks.com/help/simulink/slref/derivative.html
The Derivative block approximates the continuous derivative of the continuous input signal u with respect to the simulation time t.
derivativecomputeapproximatecontinuousinput