GATE EE 2017 Set 2 — Question 46

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NAT+2 / -0MediumSolution of State EquationsState-Space AnalysisControl Systems

Control Systems → State-Space Analysis → Solution of State Equations

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Question

Consider the system described by the following state space representation[x˙1(t)x˙2(t)]=[0102][x1(t)x2(t)]+[01]u(t)\begin{bmatrix} \dot{x}_1(t) \\ \dot{x}_2(t) \end{bmatrix} = \begin{bmatrix} 0 & 1 \\ 0 & -2 \end{bmatrix} \begin{bmatrix} x_1(t) \\ x_2(t) \end{bmatrix} + \begin{bmatrix} 0 \\ 1 \end{bmatrix} u(t)y(t)=[10][x1(t)x2(t)]y(t) = \begin{bmatrix} 1 & 0 \end{bmatrix} \begin{bmatrix} x_1(t) \\ x_2(t) \end{bmatrix}If u(t)u(t) is a unit step input and [x1(0)x2(0)]=[10]\begin{bmatrix} x_1(0) \\ x_2(0) \end{bmatrix} = \begin{bmatrix} 1 \\ 0 \end{bmatrix}, the value of output y(t)y(t) at t=1t = 1 sec (rounded off to three decimal places) is ________.
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