Digital Control Systems

Z & S Domain Relationship

Z & S Domain Relationship 1. The auto-correlation function of a rectangular pulse of duration T is a) A rectangular

Digital Control Systems

The Z-Transfer Function

The Z-Transfer Function 1. Consider the following statements regarding a linear discrete-time system: H (z) = z2+1/(z+0.5)(z-0.5) 1. The system

Digital Control Systems

The Z-Transform

The Z-Transform 1. The discrete-time signal x (n) = (-1)n is periodic with fundamental period a) 6 b) 4 c) 2

Digital Control Systems

Difference Equations

Difference Equations 1. Difference equation model results in: a) Sampled-data systems b) Numerical analysis of continuous time systems c) Continuous

Digital Control Systems

Signal Reconstruction

Signal Reconstruction 1. Sampling can be done by: a) Impulse train sampling b) Natural sampling c) Flat-top sampling d) All

Stability in Frequency Domain

Feedback Compensation

Feedback Compensation 1. Which of the following are the not characteristics of the closed loop systems? a) It does not

Stability in Frequency Domain

Tuning of PID Controllers

Tuning of PID Controllers 1. The input of a controller is a) Sensed signal b) Error signal c) Desired variable