Amplitude modulation
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Amplitude Modulation. Amplitude Modulation. Amplitude Modulation is a process where the amplitude of a carrier signal is altered according to information in a message signal. The frequency of the carrier signal is usually much greater than the highest frequency of the input message signal.

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Amplitude modulation1
Amplitude Modulation

  • Amplitude Modulation is a process where the amplitude of a carrier signal is altered according to information in a message signal.

  • The frequency of the carrier signal is usually much greater than the highest frequency of the input message signal.


Am basic definitions cont
AM – Basic Definitions (cont.)

The Envelope:

The AM Signal


The am spectrum
The AM Spectrum

Carrier

Side Bands





Hands on
Hands-On

  • Simulation

  • Implementation using the DSK6713


The simulation environment
The Simulation Environment

Virtual

Scope

Modulator

Demodulator

Information

Signal

Demodulated

Signal



Real time environment
Real Time Environment

PC

RTDX

DSK6713

CODEC

TMS320C6713

AM

Modulator

A/D

(Right)

D/A

(Left)

Signal Generator

Line Out

Line In

AM

Demodulator

Line Out

Line In

D/A

(Right)

A/D

(Left)

Scope






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