Uniqueness of State Transformation Matrix for Controllable Systems

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SUMMARY

The discussion centers on proving the uniqueness of the state transformation matrix T for two completely controllable systems defined by the equations x-dot = Ax + bu and z-dot = A*z + b*u. The key argument presented is that since both systems are completely controllable, the Kalman matrix, defined as k = (b, Ab, A^2b, ...), is non-singular. This non-singularity implies that there is only one valid choice for the coefficients in the transformation matrix T, establishing its uniqueness definitively.

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Homework Statement



Two systems are given (both are completely controllable):
x-dot = Ax + bu
z-dot = A*z + b*u

They are related by the state transformation:

z=Tx

prove that the transformation matrix T is unique.

The Attempt at a Solution



Since the systems are completely controllable, we the kalman matrix (k=(b,Ab,A^2b,...) is non-singular. If T is unique, there is only one possible chose for the coefficients. I'm lost from there.
 
Last edited:
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Please fix your LaTeX, particularly this bit
(k=(b,Ab,[ tex]^{}[/ tex]b,...)

It's causing a large, very wide blank area to be rendered on the page.
 

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