Chhattisgarh Swami Vivekanand Technical University 2008-4th Sem B.E Electronics
ler. xammatioiu
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.aar r J//. iftwstium. urn? uiujiuistny. Pan (a) of each qui&tti/m war uui/upuixttn Atunnpi any two parts irum itupiis >&;. <(& Jc id). Answer should he tttnit/j until tiv itiw ptiitu. Uutwccxxury Jotu* att&wtr muu. tssui: Jn Joss xtf marks.
(a); fe-Uittaianjiiimtsjrajic.rihcd b>- the .equation
-C? 5pwg:termiinva>gfag <wfetapws.lHt3rtiy
(ttf iUwm (0 <br1 s> HI jc pcniMU& -*eu iifi ,-wnnwU jnd'F. mapesrtwfy. > 'nJrr 'Thai .iwvlrttnm
i* I he sum eft)- **,(rj r *0 jksmU*c ami xrfiat
\*ifl be ibe pert Ml af r (rj if if w {jmiutter* 7
Z. (a) Stetc ihtrmallipUeaimthninnrtif limner I'ranxumn. Z
(6) Find the mgononemc Feuner ncs representation for the recaffcd sine wove shown in fig- 7
fig.>2 (b) Rectified sine wave
es Jcsenon; tfc Jwrcr itffl .-=/coMfc
.'<fl "n mi dtcZartMgr'rsaibvrs ftr nrur 9Aranni'
Sj.-Z (d.) A triangular pulse
(a) State the convolution property of Z-mnsform. 2
(b) Find the Z-flaraforra of the following sequence . 7
r, n< 0
(I/2JT. n-O.2.4
(1/3)T. * 1,3,5
H I
(c) Kind I Sc invert Z-transform of:
Wl C'ompulc the OFFol \hc >cquc7*x which h c*|WcU as follow* : 7
, v (1/4. (ixOSnC: A () m I
(X iKiVtW1>C
4* (a) Explain (he important properties of convolution
Integral. 2
(b) For an LTI system wtlh unit inipuW rc*ponw h (/) * r'*'- (f), determine the output to ihe inpul
.<(/) = ,-'(/). 7
(c) Obtain Uk* cmvu1uhMi u( \\k iwn coiilnnious-timc functions pttfl Mow 7
and A (r) 3r for all values of /.
(d) By using continuou>-imu.' convolution integral, find out the response of the -..yslcm to umt-stcp mptn ignjl. tmpulic response i* given as : 7
/
5. (a) WJui an* the vjfwiLs rpiicJUoH%f Dj\crelc Kwncj
Tninsfrtnii (OFT)? 2
(b) SVtm arc the various symbols used to fcprcscni discrete time systems? 7
(c) Draw direct form-1 & direct form-11 structures for the difference equation, 7
(J) Obtain the convolution of the two ignak, j(f) Ae~* 0 < / <
v(/) -/r n<i<c<,
lUpbm the convolution proccss graphically & plot the result of convolution graphically. 7
I.MO] 32*415(28)
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| Earning: Approval pending. |
