7/30/2019 Ejercicios Comunicaciones: Modulacin en Amplitud

1/2

Qk`vars`mfm ]aokblj`of Kfo`bkfl Cfoultfm aj`bkfl Maltf

Obiuk`ofo`bkas

Akafs K+ Ibral Xj`kf 6

Xrfot`of S

Ibmulfo`k ak Fipl`tum+

6+ Qkf safl ibmulfmbrf c$t) sa fpl`of f uk ibmulfmbr ma FI s`k pbrtfmbrf, quabparf f ukf craouako`f ma >88 Dz+ M`nuga lf maks`mfm aspaotrfl ma lf safl maFI rasultfkta, `makt`c`ofkmb lfs nfkmfs lftarflas supar`br a `kcar`br, pfrf lbs

s`ju`aktas ofsbs+

f+ obs 688c t t +

n+ 6 obs

>88>88

>

8

wt

C w w

oo

>+ _a masafk axfi`kfr lf craouako`f y lf cfsa ma uk bso`lfmbr ma nfgf craouako`f obkraspaotb f uk sajukmb+ _a mao`ma iult`pl`ofr lfs sfl`mfs ma lbs bso`lfmbras pfrf

dfoar lf obipfrfo`k+ _`k ainfrjb, obib rasultfmb ma lfs m`c`oultfmas fl

obkstru`r al iult`pl`ofmbr ma nfgf craouako`f, sa al`ja ut`l`zfr ibmulfmbras ma

FI obk pbrtfmbrf supr`i`mf y uk iult`pl`ofmbr pfsfnfkmf+

f+ Matari`ka lfs axpras`bkas pfrf lfs saflas ma FI+n+ Matari`ka ukf axpras`k pfrf j$t)+o+ M`nuga lf ifjk`tum mal aspaotrb ma j$t)+m+ Ak qu obkm`o`bkas j$t) raprasaktf al prbmuotb masafmb ma lfs mbs saflas

ma aktrfmf2+

?+ Xfrf lf safl FI obk pbrtfmbrf ma lf c`jurf+f+ Akouaktra al km`oa ma ibmulfo`k+

n+ Asor`nf ukf axpras`k pfrf lf safl+o+ M`nuga al aspaotrb ma lkaf ma lf safl+m+ Maiuastra qua lf suif ma lfs mbs lkafs ma lfs nfkmfs lftarflas, m`v`m`mfs pbr

lf lkaf ma lf pbrtfmbrf, prbpbro`bkf al km`oa ma ibmulfo`k+

a+ Matari`ka lf fipl`tum y lf cfsa ma lf pbrtfmbrf fm`o`bkfl qua sa mana ffm`r flf safl ibstrfmf pfrf bntakar uk km`oa ma ibmulfo`k ma >8!+

7/30/2019 Ejercicios Comunicaciones: Modulacin en Amplitud

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Qk`vars`mfm ]aokblj`of Kfo`bkfl Cfoultfm aj`bkfl Maltf

Obiuk`ofo`bkas

Akafs K+ Ibral Xj`kf >

=+ Qk trfsi`sbr ma FI obk pbrtfmbrf, masfrrbllf ukf pbtako`f f lf sfl`mf s`kibmulfr ma 6 Ew f trfvs ma ukf ras`stako`f ma 18 + Oufkmb sa fpl`of uk tbkb

ma pruanf sakb`mfl obk fipl`tum p`ob ma 1 S f lf aktrfmf mal ibmulfmbr, sa

akouaktrf qua lf lkaf aspaotrfl pfrf ofmf nfkmf lftarfl ak al aspaotrb ma

ifjk`tum pfrf lf sfl`mf as al =8 ! ma lf pbrtfmbrf+ Matari`ka lfs s`ju`aktas

ofkt`mfmas ak lf safl ma sfl`mf+

f+ Al km`oa ma ibmulfo`k+n+ Lf fipl`tum p`ob ma lf nfkmf lftarfl `kcar`br+o+ Lf rfzk ma pbtako`f tbtfl ak lfs nfkmfs lftarflas f lf pbtako`f ma pbrtfmbrf+m+ Lf pbtako`f tbtfl ma sfl`mf+a+ Lf pbtako`f prbiam`b tbtfl ak lf sfl`mf s` lf fipl`tum ma p`ob ma lf sakb`mfl

ma ibmulfo`k sa ramuoa f = S+

1+

M`nuga al aspaotrb tp`ob ma uk s`staif ma iult`plax`k pbr m`v`s`k macraouako`f pfrf ofmf ukf ma lfs s`ju`aktas obin`kfo`bkas y iako`bka fljukfs

vaktfgfs y masvaktfgfs ma ofmf s`staif+

f+ FIOp+n+ FI_p+

3+ Qk trfsi`sbr ma NLQ obk pbrtfmbrf, sa ibmulf obk lf aktrfmf c$t) 9 obs$>888t)+Ak kbtfo`k ma vflbr obiplagb sa puama asor`n`r f lf safl ma sfl`mf obib7

6 o

gw t

NLQ at ^ F ic t gic t a

f+ Avflu c t +n+ Oul as al ix`ib vflbr ma i s` sa ut`l`zf mataotbr ma akvblvakta2+o+ Matari`ka al vflbr kuir`ob ma F y i s` lf pbtako`f s`k ibmulfr f trfvs ma

uk ras`stbr ma 18 as ma 188 Z y sa akouaktrf qua lf pbtako`f prbiam`b

fuiaktf 18 ! oufkmb sa fpl`of lf ibmulfo`k+