avance final 1
TRANSCRIPT
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UNIVERSIDAD POLITECNICA SALESIANA
INGENIERIA ELECTRONICA
SEÑALES Y SISTEMAS
INTEGRANTES: AGUIRRE YUMISEBA CRISTHIAN
CONDO SIMBAÑA JONATHAN
IZA SALAZAR DANNY
PACHACAMA DURAN EDWIN
CURSO: 5G-1
PERIODO 47
.
TEMA 7: TRANSORMADA DE HILBERT
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1. TEMA:
A!"#$%$% &'()$*+ , "/($*+ 0/ ! )$#'+ 2"%" 3"!0"%
2. OBJETIVOS.1.OBJETIVO GENERAL
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2.2.OBJETIVOS ESPECIFICOS A!"#$"' &'()$*"/!/ #" %/8"# 0/ ! )$#'+ 2"%" 3"!0"% $#$"!0+ #" '"!%)+'"0" 0/9$#3/'.C+2'/!0/' #" $#$"*$! 0/ #" '"!%)+'" 0/ 9$#3/' /! )$#'+% "!"#&$*+% ;2"%"3"!0"%<
3. MARCO TEORICO
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.1. PRINCIPALES APLICACIONES DE LA TRANSORMADA DE HILBERT
.1.1. $#'+ 0/ H$#3/' %/ +3$/!/ *++ #" *+!6+#*$! 0/ !" %/8"# *++ @;< + 9;< 0"'( !"%/8"# '/"#= /%+ /%= %$! 2"'/ $"&$!"'$". P+' #+ / %$ @;< /% '/"#= '"% 2"%"' /# )$#'+ 0/H$#3/'= %/&$'( %$/!0+ '/"#.
^ x ( t )= x ( t )∗h ( t )=∫−∞
∞ x(T )π ( t −T )
∂T ;1<
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s (t )= H {s }(t )=(h∗s ) ( t )= 1
π ∫−∞
∞s(T )t −T
dT ;<
U$#$"!0+ s (t ) = /% 2+%$3#/ *+!%'$' #" %/8"# "!"#$*" 0/ %;< *++:
sa (t )=S ( t )+i s (t ) (3)
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H (w )= F {h} (w )=+ j si<w ¿ ;4<
H (w )= F {h} (w )=− j si>w ¿ ;5<
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&esarrll "e las at$*$"a"es ,r,-estas
ACTIVI&A& 1:
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j2 π f c t
+¿ ( t )= g ( t ) exp ¿
g¿
;<
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+¿ (t ) exp (− j 2π f c t )g ( t )= g¿
;1<
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+¿ ( f +f c)+¿ (f )∗δ ( f + f c )=G¿
G ( t )= G¿
;11<
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At$*$"a" 2
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. $#$"!0+ #" '"%)+'"0" 0$%*'/"
H {s (t )}= 2
π ∑n=−∞
∞
s ( t −n Δt )sin
2( πn
2 )n
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+'$/'−¿ { s (t )}
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Rg g(T )=∫−∞
∞
g (t ) g∗(t −T ) dt
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Rg g(T )=G ( f )G∗( f )
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"!+ /0" 0/+%'"0+ / %+! +'+&+!"#/%.
g (t ) g∗( t )dt =¿∫−∞
∞
G ( t )G∗( t )df
R g g (0)=∫−∞
∞
¿
¿∫−∞
∞
G ( f ) ⌈ − jsgn ( f )G( f )⌉ df
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f ¿¿
¿2⌉ df
⌈ − jsgn ( f )G ¿
¿∫−∞
∞
¿
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g ( t ) g∗(t ) dt =¿
Rg g(0 )= limT → ∞
( 12T )1
∫−T
T
¿
Pr,$e"a" +.
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. P/'+ /!/+% / /#/&$' #" +2*$! / 0$*/ $!%"## $9+ %$!& 9/ $!/'!/= 2"'" /#/&+ !+% "2"'/*":
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. A /!/+% / "*/2"' #+% '$!+% 0/ #$*/!*$" 0/ 9/ "9+']%= $!*. S$2#//!/"'*"+% ,/% , #/ 0"+% *#$*] /! !/@= 2"'" / !+% "2"'/*":
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5. E! /%/ 2"%+ %$ /%(! $!$*$(!0+%/ /! /# %+ 0/ MATLAB /#$&/ #" +2*$! ,2$*"# , #/ 0"!*#$*] /! !/@= 2/'+ %$ ," %+! %"'$+% "6"!"0+% /#$&/! #" +2*$! *%+ 0+!0/ 2+0'(!/#/&$' / *+2+!/!/% 0/# 2'+&'"" $/'/! $!%"#"' , *(#/% !+^ /! /%/ *"%+ %//#$&$ #" +2*$! ,2$*"# +3/!$/!0+:
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U!" %/8"# +!+ *+2+!/!/ %/ 0/%*'$3/ /! /# 2#"!+ $/2+-)'/*/!*$" 2+' ! %+#+ _*'/%"`. E# *+!K!+ 0/ %/8"#/% +!+ *+2+!/!/ $!*#,/ %$!%+$0/% $!0$6$0"#/%= %$!+ /"3$! $!*#,/ %/8"#/% *++ *9$''$0+%.
EK/2#+:
G/!/'"' ! *9$''$0+ /%'/"0" " 1 ]H 0'"!/ 0+% %/&!0+%. E%2/*$)$/ /# *9$''$0+ 2+' #+ / % )'/*/!*$" /% $!$*$"#/!/ 1 H , "/!" " H 0/%2% 0/ ! %/&!0+.
Pre-ntas aera "e la trasfr!a"a "e $l%ert
1.4 56-7 es la transfr!a"a "e #$l%ert8
L" '"!%)+'"0" 0/ H$#3/' ;TH< /% ! +2/'"0+' "/($*+ #$!/"# / /!'/&" ! '/%#"0+ //%( /! /# $%+ 0+$!$+ / #" )!*$! 0/ 2"'$0"= /! *#"'+ *+!'"%/ *+! #" '"!%)+'"0" 0/+'$/' / *++ ," %/ 6$+= *"3$" 0/ 0+$!$+. E# !+3'/ 2'+6$/!/ 0/ D"6$0 H$#3/'"/($*+ , *$/!)$*+ "#/(! / $!6/!+ , 0/%"''+##+ ! &'"! "3"!$*+ 0/ $0/"%= $/!$!'+0K+ 2+' 2'$/'" 6/ /# +2/'"0+' *+! /# )$! 0/ '/%+#6/' ! *"%+ /%2/*$"# 0/# 2'+3#/" 0/R$/"!!- H$#3/' 2"'" )!*$+!/% "!"#$*"% ;+ )!*$+!/% 9+#++')"%<.
2.4 C9! se ,lantea !ate!t$a!ente la transfr!a"a "e #$l%ert
L" '"!%)+'"0" 0/ H$#3/' 0/ !" %/8"# @;< 2/0/ +3/!/'%/ 2+' ! %$%/" / /!&" !")!*$! 0/ '"!%)/'/!*$" H;)< 0"0" 2+':
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D+!0/ H ;) ;<< /% $&"# " #" *+!6+#*$+! 0/ );< *+! = /!+!*/% %/ 2/0/ /%*'$3$':
A2#$*"+% #" 2'+2$/0"0 *+!"$6" 0/ #" *+!6+#*$+!:
Y /%" /% +'" )+'" 0/ '/%+#6/' #" '"!%)+'"0".
L" $!/&'"# 0/ #" '"!%)+'"0" 0/ H$#3/' /% $2'+2$" ," / = , !+ %/ /!*/!'" 0/)$!$0"=2"'" / !+ +*''" /%/ $!*+!6/!$/!/ %/ *"#*#" #" $!/&'"# 0/ "!/'" %$'$*" /! +'!+ a*++ %/ 6/ /! #" %$&$/!/ /*"*$!:
Y "% 2#"!/"+% "/($*"/!/ #" $!/&'"# 2"'" 9"##"' #" '"!%)+'"0" 0/ H$#3/'.
3.4 En-!erar en-n$ar ls ,r$n$,ales tere!as "e la transfr!a"a "e #$l%ert.
1. L$!/"#$0"0:
. T. 0/ !" *+!%"!/:
. D/%2#""$/!+:
4. A2#$)$*"*$!:
5. C+!6+#*$+!:
. D/'$6"*$!:
+.4 En ;-7 se a,l$a la transfr!a"a "e #$l%ert8 (%-s;-e al !ens 2 a,l$a$nes
"$st$ntas)
1. D$)/'/!*$"0+'/% 0/ )$#'+% IR:
bL+% )$#'+% IR 0/ )"%/ #$!/"# 2/0/! "3$! 0$%/8"'%/ *+! !" '/%2/%" 0/ )'/*/!*$"
(@$"/!/ 2#"!+. E%+% )$#'+% %/ $#$"! 0/ ! )$#'"0+ /@"*+ /! 3"K"% )'/*/!*$"%. E#0$%/8+ 0/ )$#'+% 2"%"-3"K"% (@$"/!/ 2#"!+% %" !" )+'" */''"0" 0/ #" )!*$! 0/'"!%)/'/!*$" ; <. U! 0$)/'/!*$"0+' 0$&$"# /% /# 0/%*'$+ 2+' ; < = \ \ Q .5. E! %$"*$+!/%2'(*$*"%= '"'" 6/ %/ !/*/%$"! )$#'+% / 0$)/'/!*$/! /! +0+ /# $!/'6"#+ 9"%" \ \ .5. S$'//'$+% 0$)/'/!*$"*$! %+#+ 9"%" !" )'/*/!*$" 0/ *+'/ *= E!+!*/%`: ;< bC++ ; < /%$2"' ℎ. P"'" /!*+!'"' ℎ = c %/ %" #" DTT $!6/'%" 2"'" +3/!/'`: ;< U$#$"' #"'/#"*$! 0/ E#/' , #" %$/'"= E%+ %/ %$2#$*" /!:
P"'" .5= /%+ 2'+0*/ ℎ , ℎ ;< = c . .
. E# U#'"%+!$0+:
L"% %/8"#/% '/*$3$0"% '/%#"! 0/ #" +0#"*$! /! "2#$0 0/ !" 2+'"0+'" *," )'/*/!*$""!&#"' d /% #" !+$!"# 0/# '"!%0*+': @ ;< A;<%/!;d e <
L" ",+'" 0/ #+% "#&+'$+% 0/ 2'+*/%"$/!+ 0$&$"# 0/ %/8"# %/ "2#$*"! %+3'/ /%/ $2+ 0/%/8"#/%= $/!'"% / #" $!)+'"*$! $# %/#/ /%"' /! #" /!6+#6/!/ A;< . E!'/ /%+%"#&+'$+% /!*+!'"+% #+% %$&$/!/%:
+*"#$"*$! 0$!($*" /! "''/&#+%=
R/0**$! 0/ '$0+ /%'*'"#=
D$6/'%+% $2+% 0/ )$#'"0+ #$!/"# , !+ #$!/"#=
T*!$*"% 0/ *+!6+#*$! , 0/ *+''/#"*$!.
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bL"% %/8"#/% / 2'+0*/ #" "2#$*"*$! 0/ /%+% "#&+'$+% /% "3$! !" %/8"# 0/'"0$+)'/*/!*$"= 0/ #" / )$!"#/!/= 9", / /@'"/' #" /!6+#6/!/`. bU!+ 0/ #+% +0+% (%$#$"0+% %/ 3"%" /! *"#*#"' #" /!6+#6/!/ *++ /# 6"#+' "3%+#+ 0/ #" %/8"# "!"#$*"= /'/%#" 0/`:
; < ; < ; ; << >
b0+!0/ H;[< /% #" '"!%)+'"0" 0/ H$#3/'= / %/ +3$/!/= 3$/! /0$"!/ /# *(#*#+ 0/ !" T0$'/*" , +'" $!6/'%"= + %+/$/!0+ " @;< " ! )$#'+ IR /! *"0'"'" 0/ +'0/! %)$*$/!/ 2"'"+3/!/' !" 3/!" "2'+@$"*$! /! +0" #" 3"!0" 2"%"!/ 0/ #" %/8"#. L" /!6+#6/!/ %/+3$/!/= )$!"#/!/= *"#*#"!0+ /# 0#+ 0/ #" %/8"# "!"#$*" '/%#"!/ ;!" '" *"0'"0" 0/!" %" 0/ *"0'"0+% 2"'" *"0" 6"#+' 0/ <. E%= 2/%= ! 2'+*/%+ $!/!%$6+ /! *(#*#+ /2/0/ +*2"' ! $/2+ *+!%$0/'"3#/`.
<.4 6-e es -n f$ltr
E% ! 0$%2+%$$6+ %/#/*$6+ /! )'/*/!*$" / %/ %" 2"'" #$$"' /# /%2/*'+ 0/ !" %/8"# " !"3"!0" 0/ )'/*/!*$"% /%2/*)$*"%.
S '/%2/%" %/ *"'"*/'$" 2+' !" 3"!0" 0/ 2"%+ , !" 0/ '/*9"+.
=.4a transfr!a"a "e $l%ert se ,-e"e a,l$ar a -al;-$er señal
S$ %/ 2/0/ "2#$*"' " *"#$/' %/8"# / /!&" '"!%)+'"0" 0/ +'$/' , 2+' #+ "!+ "%/8"#/% 0/ 2+/!*$" , 0/ /!/'&" 0/ #"% %"0"% /! %$%/"% 0/ *+!$*"*$+!/%
>.4a transfr!a"a "e $l%ert se ,-e"e e?,resar ! -na n*l-$n
S$ %/ 2/0/ /@2'/%"' 2+'/ 2/0/ $!/'2'/"'%/ *++ !" *+!6+#*$+! 0/ #" )!*$! *+! #")!*$! 0/ $/2+.
@.4a transfr!a"a "e $l%ert es t$l ,ara al-lar ;-e t$, "e ,era$nes
L" '"!%)+'"0" 0/ H$#3/' /% $# 2"'" *"#*#"' /# *+!/!$0+ /! )'/*/!*$" 0/ !"%/8"# 0/ /!/'&" + 0/ 2+/!*$". A% %/ 2/0/! "!"#$"' , 0$%/8"' #'+% %/#/* $6+% /! )'/*/!* $"2"'" 2+0/' %/2"'"' %/8"#/% %/&! % *+!/!$0+ /! )'/*/!*$"
.4Esr$%a -na Pr,$e"a" "e la transfr!a"a "e #$l%ert
U!" %/8"# & ;< , % '"!%)+'"0" 0/ H$#3/' $/!/! #" $%" 0/!%$0"0 /%2/*'"#. P"'" 2'+3"'#+=%/ 2/0/ +3%/'6"' / #" '"!%)+'"0" 0/ +'$/' 0/ /% K %&! ;)< #$2#$*"0+ 2+' G ;)<= 2/'+*++ #" "2#$0 0/ K %&! ;)< /% !$0"0= /!+!*/%T$/!/! #" $%" "2#$0 /! )'/*/!*$" \G ;)<\ \G ;)<\. &D/ /%" 2'+2$/0"0 %/ 2/0/ 0/0*$' *++ *+'+#"'$+:
1. S$ & ;< /%( #$$"0" /! 3"!0"= "3$! 6" " /%"' #$$"0" /! 3"!0" &;<
1.4 la trasfr!a"a "e $l%ert ! se $nter,reta s- sal$"a TI
L" '"!%)+'"0" 0/ H$#3/' %/ 2/0/ $!/'2'/"' *++ #" %"#$0" 0/ ! %$%/" LTI *+! /!'"0" ,'/%2/%" "# $2#%+.
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