Communications Blockset

DSBSC AM Demodulator Baseband

Demodulate DSBSC-AM-modulated data

Library

Analog Baseband Modulation, in Modulation

Description

The DSBSC AM Demodulator Baseband block demodulates a signal that was modulated using double-sideband suppressed-carrier amplitude modulation. The input is a baseband representation of the modulated signal. The input is complex, while the output is real. The input must be a sample-based scalar signal.

In the course of demodulating, this block uses a filter whose transfer function is described by the Lowpass filter numerator and Lowpass filter denominator parameters.

Dialog Box

Lowpass filter numerator

The numerator of the lowpass filter transfer function. It is represented as a vector that lists the coefficients in order of descending powers of s.

Lowpass filter denominator

The denominator of the lowpass filter transfer function. It is represented as a vector that lists the coefficients in order of descending powers of s. For an FIR filter, set this parameter to 1.

Initial phase (rad)

The initial phase in the corresponding DSBSC AM Modulator Baseband block.

Sample time

The sample time of the output signal.

Pair Block

DSBSC AM Modulator Baseband

See Also

DSB AM Demodulator Baseband, SSB AM Demodulator Baseband

DSB AM Modulator Passband

DSBSC AM Demodulator Passband