State observer bode plot

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Don Bombuwela
Don Bombuwela on 9 Jul 2019
Answered: David Sanchez on 9 Jul 2019
I want to do a frequency analysis of a state observer. Observer has two inputs. Control input u and the output of the plant y. Output is the state vector. I'm not sure how to select the inputs and the outputs to draw the bode plot. Basically I want to demonstrfate that a reduced order observer has a low phase lag than a full order observer but I can't figure out how to select the inputs and outputs to draw the Bode plot.

Accepted Answer

David Sanchez
David Sanchez on 9 Jul 2019
I'm sure that you can find an example similar to your problem in the Bode documentation:

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