Compare data at consecutive timesteps during runtime in Simulink
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Hi all,
I'm trying to create a parachute model system for a rocket that will deploy when the altitude begins to decrease i.e. altitude at timestep n < altitude at timestep n-1.
I'm not entirely sure what the best way is to do this. I've played around with setting the altitude as a parameter of a masked subsystem but this didn't really work and made the simulation run significantly slower. Is there a fast way to extract a previous value of a logged signal?
Thanks!
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Fangjun Jiang
2020-8-26
Use a Unit Delay block, the input is altitude, the output is the "previous value" of the altitude.
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