Observability question
Observability question
(OP)
If I have an encoder on a rotating joint, I know the position, and if I differentiate, I know I can get velocity and acceleration. If my state space controller requires velocity and acceleration, does that mean I am able to observe those values? Observability doesn't necessarily mean you need a instrument to directly measure it, does it? Many thanks for your help!





RE: Observability question
In real state-space control, these values are not obtained by differentiation. Instead, they are computed by a mathematical model of the plant in response to the control effort, with correction from the actual position measurement each cycle.
Second, do not count on these observed states being incredibly accurate, given resolution and computational limitations.
Curt Wilson
Delta Tau Data Systems
RE: Observability question
TTFN

FAQ731-376: Eng-Tips.com Forum Policies
Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers