Modulación DPSK
-
Upload
marco-flores -
Category
Documents
-
view
226 -
download
0
Transcript of Modulación DPSK
-
7/23/2019 Modulacin DPSK
1/19
MODULACIN PORCORRIMIENTO DE FASEDIFERENCIAL DPSK JOSU ECHEVERRA VARGAS
MARCO ANTONIO FLORES LPEZ EDUARDO MARTN REYES GALVN
-
7/23/2019 Modulacin DPSK
2/19
DPSK(DIFFERENTIAL PHASE SHIFT KEYIN
Es u! "#$%! !&'$! %#u&!*+, +-+'!& .
L! +"#$%!*+, '$!! /+!$+! s'! *#'+! &!
+"$*+! "!s0 '$ #s &%'#s su*s+1#s0 #
"!s !/s#&u'!.
-
7/23/2019 Modulacin DPSK
3/19
N# s *s!$+# $*u2$!$ u! 2#$'!#$! *#3$'
S $'!$! u &%'# s4!&+5!*+, 6 s *#%2!$!
s+-u+' &%'# $*+/+# s4!&+5!*+,0 &! +"$
"!s '$%+! & s'!# &,-+*#.
-
7/23/2019 Modulacin DPSK
4/19
-
7/23/2019 Modulacin DPSK
5/19
-
7/23/2019 Modulacin DPSK
6/19
MODULADOR
DPSK C#%2u$'! 7NOR0 *#%2!$! &!
'$!! !'#s *# & /+' s!&+# &&!
S us! u %#u&!#$/!&!*!# # s +'$#u*
&! 2#$'!#$!
L! s!&+! & *+$*u+'# &,-+*#
.
-
7/23/2019 Modulacin DPSK
7/19
MODULADOR DBPSK
-
7/23/2019 Modulacin DPSK
8/19
-
7/23/2019 Modulacin DPSK
9/19
DEMODULACIN DE DPSK
-
7/23/2019 Modulacin DPSK
10/19
L! s4!& $*+/+! &&-! !& $*2'#$ '!'# "#$%! +$*'! *#%# ! '$!19s u *+$*u+'# # su"$ u $'!$# u '+%2# u /+'. L!s #ss4!&s s +'$#u* & %#u&!#$ s:*$## # %u&'+2&+*!#$ 6 &!s4!& $su&'!' !'$!1+s! u ;&'$# 2!s# /!
-
7/23/2019 Modulacin DPSK
11/19
Su2#+# =u # >+s'! !'u!*+,0 &! s4!& $*+/+!s >!*'!%' 1DPSK0 Cu!# &! s4!& $*+/+! s%u&'+2&+*! %#u&!#$ s:*$## 2#$ &! =u 3! su"$+u $'$!s# u '+%2# /+'0 T0 s #/'+ ! &! s!&+! s' %#u&!#$ &! s4!&?
-
7/23/2019 Modulacin DPSK
12/19
Es'! s4!& 2!s! 2#$ u fltro paso bajo +s4!# %## =u&+%+ '## *#%2#' 2#$ *+%! &! "$*u*+! &! s4!&2#$'!#$!0 2!$! #/'$ & 2$#u*'# .
C#%# s +;$ &! @&'+%! *u!*+,0 2!$! =u &! s4!& s!&+!
s! '! -$! *#%# s! 2#s+/&0 / &-+$s u '+%2# T '!& =u
As:0 &! "$*u*+! 2#$'!#$! / s$ &-+! %## =u &'+%2# u$!*+, u /+' s u @%$# '$# 1*s %+#s *+*s u$!*+,.
-
7/23/2019 Modulacin DPSK
13/19
L! 1'!
s 2u +%2&%'!$. E &! DPSK # s *s+'!
*+$*u+'# $*u2$!*+, 2#$'!#$!.
U! s1'!
!&*!5!$ &! %+s%! "$*u*+! $$#$s =u &! PSK
!/s#&u'!.
-
7/23/2019 Modulacin DPSK
14/19
RECUPERACIN DE RELOJ
L#s !'#s $*u2$!#s s %#$! %+# /+' '+%2#6 ! *#'+u!*+, s *#%2!$! *# s !'#s #$+-+!&s u *+$*u+'# 7OR. L! "$*u*+! & $< =u s
$*u2$! *# s' %9'## s +-u!& ! &! "$*u*+! !'#s $*+/+#s0 f.
-
7/23/2019 Modulacin DPSK
15/19
E& +!-$!%! %us'$! &! $&!*+, '$ s !'#s 6 &! s+*$#+5!*+,& $< $*u2$!#. S 1 !&&: =u %+'$!s s !'#s $*+/+#s*#'-! u! *!'+! !2$*+!/& '$!s+*+#s (s*u*+!sB)0 s %!'+ & $< $*u2$!#. S+ s !'#s $*+/+#s 'u1+$!u 2$+## 2$#-!# D u#s # *$#s su*s+1#s0 s 2$$:! &
$< $*u2$!#. P!$! 1+'!$ =u s# su*!0 s !'#s S $1u&1 & >'$%# '$!s%+s+, 6 s 1u&1 ! #$!$ & >'$%# $*2*+,. L! %5*&! +'$#u* '$!s+*+#s (2u&s#s) &! s4!&/+!$+!0 =u us! u !&-#$+'%# 2$'$%+!#0 6 & #$!#$ us!& %+s%# !&-#$+'%# 2!$! &+%+!$ &!s '$!s+*+#s.
-
7/23/2019 Modulacin DPSK
16/19
CRITERIOS PARA LA SELECCIN DE UNATECNICA DE MODULACIN
S+ & !*3# /!! s & 2!$%'$# %s+%2#$'!'0s s+s'%!s DPSK 6 PSK s# s %s!2$#2+!#s.
S+ & *#su%# 2#'*+! s &! %s+%2#$'!'0 ss+s'%!s %s !2$#2+!#s s# & PSK 6 & DPSK
S+ &! *#%2&
-
7/23/2019 Modulacin DPSK
17/19
PROAILIDAD DE ERRORDE IT
E& $u+# !+'+1# &! '$!! s /&!*# 6-!uss+!#.
L! 2$'u$/!*+, &! "!s &! s4!&*#%2us'! 2#$ $u+# 1!$+! &'!%' '!&
"#$%! =u &! $"$*+! "!s ss*+!&%' u! *#s'!' s &+'$1! /!s!# s4!&+5!*+, 3!s'! &+'$1! !*'u!& s4!&+5!*+,.
E& #s*+&!#$ 2#$'!#$! & '$!s%+s#$ s
su;*+'%' s'!/& 2!$! =u &! "!s
-
7/23/2019 Modulacin DPSK
18/19
P#$ u&'+%#0 &! 2$#/!/+&+! $$#$ 2!$! us+s'%! DPSK0 s' !! 2#$ &! s+-u+'
>2$s+,?
-
7/23/2019 Modulacin DPSK
19/19