GATE EE 2026 Set 1 — Question 52
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Control Systems → State-Space Analysis → Transfer Function from States
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Question
A system is characterized by the following state equation and output equation (: input, : state vector, : output)What are the values of and for which the poles of the transfer function are at and ?
Correct answer
(D) a = -4, b = -3.25
Solution
The poles of the transfer function are the eigenvalues of the state matrix .
The characteristic equation is given by :The desired poles are at . The corresponding characteristic equation is:Comparing the coefficients of the two equations:
1)
2)
Thus, and .
The characteristic equation is given by :The desired poles are at . The corresponding characteristic equation is:Comparing the coefficients of the two equations:
1)
2)
Thus, and .
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