IDISCRETE -TIME SIGNALS ASY5J
Di's cutu m Sianal Cn) a tum thom o am Undupandent
vwubl thot i
tuwo 8vtcesive sampe
Cnstamts b/w
) n) is not desned at
thou a n
estd, h abovz 9P0-pura nepnesenkuhon
Myen elu'sout - ' m S nal
oth
for n
)Funh onal epntsenkahon, fer m 2
else heye
2)Tabuwlar uptesertation , n 2 o 2 3
n 2
) Seq uen t nepnesentat1on ,
zln) = --.. O,o, 1, 4, , 0,0 s
(n=o)Tnn Sequnu
ln) ,i 3, s,6
n-o (A' Seqwne)
Elementary Disoute
Tme Snds
It i denoted y SCn) and is defnid a
) Unt+ Samp Sea unu -
Stn) 1 for neo
0,For n #o
Abo Known as uni impul&e
a
denoted by uln) and dekind
)Onit Step Signal- Tt i
tn) 1 to n zo
fov no
On amp ánal:- It denoted 6q uylh) and defthud as
AyIn)= n for nzo
tor no
, h f om
the nm
Signal; T sequun I a
Eponental n.
cln)a" fo alt
xln) a ual S nal buue
dhin
Ta) a neal value
then a. =ae So
Complex
x(n) ="eson
os Gn + jsinOn)
and rln) =
M"jsn On
L
sin
wAin Tmag inar
RLal par par danpy
damein Punuton
tumuon
beu
d's appens
the dampiry dui's appta
we Pu n=1
But
it mplitudk
no Zs th)
haye -a F*
ClassiAtation of Dis exut-Tum Sinal
xin)
Power Signals The energy E ota signal
Enegy and
s deptrud as
E E Ixttn))*[Th&isvat'l fan Boh ual
Compltx vaud nal s J.
E nite o< E<o then,al to caled nen4 SA nal
that have tnexgy hawL n r e NUe pau)
Sinal
and 4 i c a l tulated a
P im
No N*1 -N
finte i'nterval N s n<N
we dekna xLn) ovt
fhem
E ktn)| 2
n=-
Av. po wey im1 xEN
Clear y, t ¬ is k fpo].On h 0they han E
dh powey PP 6e ethtv nee o
i'n ( t Ton-wvo) th nal i tolled Power S no
Di's cutu m Sianal Cn) a tum thom o am Undupandent
vwubl thot i
tuwo 8vtcesive sampe
Cnstamts b/w
) n) is not desned at
thou a n
estd, h abovz 9P0-pura nepnesenkuhon
Myen elu'sout - ' m S nal
oth
for n
)Funh onal epntsenkahon, fer m 2
else heye
2)Tabuwlar uptesertation , n 2 o 2 3
n 2
) Seq uen t nepnesentat1on ,
zln) = --.. O,o, 1, 4, , 0,0 s
(n=o)Tnn Sequnu
ln) ,i 3, s,6
n-o (A' Seqwne)
Elementary Disoute
Tme Snds
It i denoted y SCn) and is defnid a
) Unt+ Samp Sea unu -
Stn) 1 for neo
0,For n #o
Abo Known as uni impul&e
a
denoted by uln) and dekind
)Onit Step Signal- Tt i
tn) 1 to n zo
fov no
On amp ánal:- It denoted 6q uylh) and defthud as
AyIn)= n for nzo
tor no
, h f om
the nm
Signal; T sequun I a
Eponental n.
cln)a" fo alt
xln) a ual S nal buue
dhin
Ta) a neal value
then a. =ae So
Complex
x(n) ="eson
os Gn + jsinOn)
and rln) =
M"jsn On
L
sin
wAin Tmag inar
RLal par par danpy
damein Punuton
tumuon
beu
d's appens
the dampiry dui's appta
we Pu n=1
But
it mplitudk
no Zs th)
haye -a F*
ClassiAtation of Dis exut-Tum Sinal
xin)
Power Signals The energy E ota signal
Enegy and
s deptrud as
E E Ixttn))*[Th&isvat'l fan Boh ual
Compltx vaud nal s J.
E nite o< E<o then,al to caled nen4 SA nal
that have tnexgy hawL n r e NUe pau)
Sinal
and 4 i c a l tulated a
P im
No N*1 -N
finte i'nterval N s n<N
we dekna xLn) ovt
fhem
E ktn)| 2
n=-
Av. po wey im1 xEN
Clear y, t ¬ is k fpo].On h 0they han E
dh powey PP 6e ethtv nee o
i'n ( t Ton-wvo) th nal i tolled Power S no
