MATLAB Answers

Compare data at consecutive timesteps during runtime in Simulink

1 view (last 30 days)
Ben Milne
Ben Milne on 26 Aug 2020
Answered: Fangjun Jiang on 26 Aug 2020
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?


Sign in to comment.

Accepted Answer

Fangjun Jiang
Fangjun Jiang on 26 Aug 2020
Use a Unit Delay block, the input is altitude, the output is the "previous value" of the altitude.


Sign in to comment.

More Answers (0)




Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!