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7/30/2019 Ejercicios Comunicaciones: Ruido y Correlacin
1/2
Rl`vbrs`mgm ]bnlohc`ng Lgn`olgh Ignuhtgm Tbc`olgh Mbhtg
Noeul`ngn`olbs
Blbgs L, Eorbh Zc`lg 7
Zrgnt`ng @Y
Tu`mo y norrbhgn`l,
7, Tu`mo dhglno nol mbls`mgm bspbntrgh mb potbln`g /4 S/Fz( qub sb sueg g ulgsbgh 4 nos >:i t t ( sb gph`ng g hg bltrgmg mb ul i`htro pgsg dgkgs TN, Bhvghor res mb hg sbgh g hg sgh`mg mbh i`htro bs mb 7: ev y hg rbhgn`l ^/L 5 7:mD,
g, Mbtbre`lb bh vghor mb bl tre`los mb hg nolstgltb b t`bepo mbh i`htro, d, Mbtbre`lb hg nolstgltb mb t`bepo,
I`curg 7, I`htro TN,
4, Tbp`tg prodhbeg gltbr`or pgrg bh ngso bl qub hg mbls`mgm bspbntrgh mb potbln`g mbhg sbgh mb bltrgmg sbg;
47
7i^ w w
>, Mbtbre`lb hg mbls`mgm bspbntrgh mb potbln`g mb :7 kw ti t I b blnoltrglmo blpr`ebr hucgr hg iuln`l mb gutonorrbhgn`ol,
g, Tbp`tg pgrg : :47 4kw t k w ti t I b I b ,d, Bxt`blmg bh rbsuhtgmo pgrg 0klw tl
l
i t I b
,
=, Hg sbgh mb puhso mb vghor noephbko i&t) sb rbp`tb bl ioreg pbr`m`ng nol pbr`omo]( ] < t7,
7
7
:
:
nkw tb t ti t
t t ]
g, Blnubltrb hg iuln`l mb gutonorrbhgn`ol T&) y m`dukb hg pgrtb rbgh,d, Blnubltrb y crgi`qub hg mbls`mgm bspbntrgh mb potbln`g ^&w),
7/30/2019 Ejercicios Comunicaciones: Ruido y Correlacin
2/2
Rl`vbrs`mgm ]bnlohc`ng Lgn`olgh Ignuhtgm Tbc`olgh Mbhtg
Noeul`ngn`olbs
Blbgs L, Eorbh Zc`lg 4
2, M`dukb g bsnghg hg iuln`l mb gutonorrbhgn`ol mb i&t) y c&t) pgrg ] 5 79,
9, Mbtbre`lb hg iuln`l mb gutonorrbhgn`ol pgrg ngmg ulg mb hgs s`cu`bltbs sbghbsmb puhso toeglmo bl pr`ebr hucgr hg trglsioregmg mb Iour`br( bhbvglmo hg
egcl`tum gh nugmrgmo y hubco toeglmo hg trglsioregmg mb Iour`br `lvbrsg,
g, gti t b u t ,d,
7
ti tt
,
n, s`li t n wt 3, Hg iuln`l mb trglsibrbln`g bl irbnubln`g pgrg bh i`htro pgsgdglmg TN sb pubmb
gprox`egr noeo mos sbnn`olbs mbh i`htro TN `lmbpblm`bltbs bl ngsngmg s` T7 88
T4, Rsglmo bstg gprox`egn`l( mbtbre`lb ulg bxprbs`l pgrg hg mbls`mgm
bspbntrgh mb hg tbln`l mb ru`mo tre`no bl hg sgh`mg mbh i`htro,
6, Hg bltrgmg mb ul geph`i`ngmor mb tbls`l sb nolbntg ul rbs`stor mb 7 a y hgsgh`mg g ul rbs`stor mb 7:: a, Hg cglgln`g mbh geph`i`ngmor bs mb 7:( hg
`epbmgln`g mb bltrgmg bs mb 7 E &supol`blmo h`drb mb ru`mo) y hg `epbmgln` g
mb sgh`mg bs mb 7:: &h`drb mb ru`mo), Bh glnfo mb dglmg mbh geph`i`ngmor bs mb
7 EFz y bh ru`mo mbh geph`i`ngmor bs mb 7: Y res( rbibr`mos g hg bltrgmg, Hg
tbepbrgturg mb tomo bh s`stbeg bs mb >:: A, Nghnuhb bh ru`mo tre`no res bl hg
sgh`mg,
%7 7 %> 7%7 >
i&t) c&t)
t t