Semester : SEMESTER 7
Subject : Digital Control System
Year : 2020
Term : DECEMBER
Scheme : 2015 Full Time
Course Code : AE 407
Page:2
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00000AE407121906
Obtain the modified Z transform of
i. x(t) = e@u(t), where w(t) represents the unit step signal.
1. G(S)= = where G(S) represents the Laplace Transform of g(t)
Check the stability of the system with the following characteristic equation
using Jury’s stability test.
F(Z) = ജ് —1.223+ 0.0722 + 0.32 - 0.08 = 0
Explain the gain margin and phase margin.
Draw the root locus diagram for the system with following characteristic
equation (For T = 0.5 sec.)
ச(1-௪ 7)
PART C
Answer any two full questions, each carries 20 marks.
Derive a state space representation of the following pulse transfer function
system in the observable canonical form and draw the block diagram
[2] _ z 744273
एदा 1+ 62 1+ 117 2 و6
Determine whether the following system with state space representation is
completely controllable or not and observable or not.
ಜ್ 2 _ [ 0 7
)يو + 1) 0 -210டி()
x(k)
x2(k)
Derive the state space representation of the following pulse transfer function
system in controllable canonical form and diagonal canonical form and draw the
block diagram.
Y[Z] _ 2711
212] 22 + 1.32 + 0.4
Obtain the transfer function of the system with the following state space
= 51|
1 + 1) | [2 -1 01൨൪ 0
representation |x2(k + 1) ۲ -3 பு ८2 (८) | + | u(k)
x3(k+1)| 1-3 یہ விரு ا
൫0
1) = [0 0 11൧൧
x3(k)
Write short notes on:
i. Pole placement using state feedback
ii. Dynamic Output feedback
Effects of finite word length on controllability and closed loop pole placement
اد मं मैप اد
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