Single tone amplitude modulation

Single tone amplitude modulation

1. Single Tone Am

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2. Single tone AM :-
the. mesos Signal Conkainı Single rg,
modulates Signal Se Rrawn ad Single tone An
Agaume mt) = Am Cora fin t
and cit) = A Copan tt
We know thet
Samat) = Alt Km] Conar£ +

"

Ac[ 14 Ka in Copan byt] conan ht
Ka Am => He (ro duflakion Andes 94D

EOS)

H<l : Under modulakıon
Hel! Critic) modulation
H>l ! over modulation

4

Component then ths vepulbing

3. Wo Reluiremente for proper detection of Am Sigrel /

. The Amplituae 4 Ramo Show be Lage than Unihy de
| Kameo] <1 for oft +

oe Es sie [kame] >1
Phase Reverted

SM Kamttd]<1

iy under modulation City critical Modulakion it) over modulabion
2. The Carver Prequeney Te 2 much RE Kran the Tight fre

the mepra signal mit) , te
q a Row

4. Sai = A. U + Y Coran Tint | Copan it
= Accoparhkt + Ar crack Car e

= AcConarkt + Act cop ar er) + At car (E)
cates 2 wo = Lo

Spechum: Amp Ama.
M = Am Coan > le
N E

cet) = SI <———>

fa Ant > us$

ktm

5. à 4 F4 For = 0 (No modulation)
R= R
B= f+ Pose + fice R= Rk

For = | [loo modulabion)

2

Be À Beish
2 _ pe
Pose = Rus = (At) /2r = an > Ap Ye Ancreanıs from ots
A ‘
i Posat Risa = Ace + Av = Cae pean” Powe ea
Ge CR Gee y

he Ach ee fA
2k FR

LÉ LE)

Where: P.: Cartier fower Alter mo dan
RL: Conder Power Before modulabion

6. Modulation “ae = Current Reflabtonship cn Ami Y

ate Speciie Share ol Sideband bower An tote power Aer [+ =
ret [112]
| Ses

5 Sida ban: afower = Be
N= Gti Power Pr Te K= TK [I+ =]
=
Be
= er Te = 1 [E
ALE] wh

Le: AM Tranamilt
A Tarmilter,

Le À

Te! Carrier current
Voltage Relotionshib in Am :-
EC yee , Pee Oe gt, fe= loo y. y fe ve ia A
= Ar
peor ,n=0U, hae Wey leo he wor e =|) =]
¿e ES
pol E Le 66674 Me E =

Ve = Ve [ne