Unit step response of the system described by the equation y(n) +y(n-1) =x(n) is:
Inverse z-transform of the system can be calculated using:
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Assertion (A): The system function
H(z) = z3-2z2+z/z2+1/4z+1/s is not causal
Reason (R): If the numerator of H (z) is of lower order than the denominator, the system may be causal.
Assertion (A): Z-transform is used to analyze discrete time systems and it is also called pulsed transfer function approach.
Reason(R): The sampled signal is assumed to be a train of impulses whose strengths, or areas, are equal to the continuous time signal at the sampling instants.
The z-transform corresponding to the Laplace transform G(s) =10/s(s+5) is
Homogeneous solution of: y(n) -9/16y(n-2) = x(n-1)
If the z transform of x(n) is X(z) =z(8z-7)/4z2-7z+3, then the final value theorem is :
Final value theorem is used for:
If the z-transform of the system is given by
H (z) = a+z-1/1+az-1
Where a is real valued:
The system is stable if the pole of the z-transform lies inside the unit circle