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Dec 6, 2020 at 13:49 comment added Petrus1904 Integrating velocity does not yield acceleration, its the other way around ;). The output of the controller is an acceleration (usually a force, but we omit masses here). This means that your top diagram looks the most accurate. Estimating the position this manner should require a delay to ensure xprev is also updated each time step. If this is implemented in simulink, you should set the simulation solver to a constant time step to make it work. If not, you'd better off replacing this part with a 1/s block.
Dec 5, 2020 at 18:10 review First posts
Dec 5, 2020 at 19:27
Dec 5, 2020 at 18:08 history answered Hosh CC BY-SA 4.0