GATE EE 2014 Set 2 — Question 43

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MCQ+2 / -0.67MediumEigenvalues & EigenvectorsLinear AlgebraEngineering MathematicsDifference EquationsLaplace & Z TransformsSignals & SystemsState-Space ModelState-Space AnalysisControl Systems

Control Systems → Laplace & Z Transforms → Difference Equations

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A discrete system is represented by the difference equation[X1(k+1)X2(k+1)]=[aa1a+1a][X1(k)X2(k)]\begin{bmatrix} X_1(k+1) \\ X_2(k+1) \end{bmatrix} = \begin{bmatrix} a & a-1 \\ a+1 & a \end{bmatrix} \begin{bmatrix} X_1(k) \\ X_2(k) \end{bmatrix}It has initial conditions X1(0)=1;X2(0)=0X_1(0) = 1; X_2(0) = 0. The pole locations of the system for a=1a = 1, are
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