Communications Blockset

DSBSC AM Modulator Passband

Modulate using double-sideband suppressed-carrier amplitude modulation

Library

Analog Passband Modulation, in Modulation

Description

The DSBSC AM Modulator Passband block modulates using double-sideband suppressed-carrier amplitude modulation. The output is a passband representation of the modulated signal. Both the input and output signals are real sample-based scalar signals.

If the input is u(t) as a function of time t, then the output is

where f_c is the Carrier frequency parameter and is the Initial phase parameter.

Typically, an appropriate Carrier frequency value is much higher than the highest frequency of the input signal. To avoid having to use a high carrier frequency and consequently a high sampling rate, you can use baseband simulation (DSBSC AM Modulator Baseband block) instead of passband simulation.

Dialog Box

Carrier frequency (Hz)

The frequency of the carrier.

Initial phase (rad)

The initial phase of the carrier in radians.

Pair Block

DSBSC AM Demodulator Passband

See Also

DSBSC AM Modulator Baseband, DSB AM Modulator Passband, SSB AM Modulator Passband

DSBSC AM Modulator Baseband

Enabled Quantizer Encode