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Modulación analógica y digital

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Modulación analógica y digital

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Quiz sobre modulación analógica y digital

Created by

Mariana
Mariana
Mexico

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Modulación analógica y digital
 

Modulación analógica y digitalOnline version

Quiz sobre modulación analógica y digital

by Mariana
1

En modulación analógica, ¿qué parámetro de la portadora se puede modificar para transmitir la señal?

2

En AM, ¿qué se mantiene constante y qué varía para modular la señal?

3

¿Qué caracteriza a la modulación digital frente a la analógica?

4

Ventaja principal de la modulación digital sobre la analógica?

5

¿Qué afirmación es típica de la modulación AM respecto al ancho de banda?

6

La modulación digital FSK se basa en cambiar:

7

¿Qué describe mejor la modulación PSK?

8

La modulación SSB se caracteriza por:

9

Qué indica la Tasa de Error de Bits (BER)?

10

En modulación digital, ¿qué determina cuántos bits por símbolo se usan?

Explicación

La modulación analógica puede modificar amplitud, frecuencia o fase.

AM: portadora con amplitud modulada, frecuencia constante.

La modulación digital utiliza símbolos discretos.

Digital: mayor robustez ante ruido y multiplexación eficiente.

FM generalmente requiere más ancho de banda que AM.

FSK: cambio de frecuencia según los bits/símbolos.

PSK: fase transporta la información.

SSB elimina la portadora y parte de la banda para eficiencia.

BER mide errores en la transmisión digital.

Más bits por símbolo, mayor densidad de la constelación.

 
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