Double sideband suppressed carrier
- Double sideband suppressed carrier
Double Sideband Suppressed Carrier (DSBSC) is used for RDS (Radio Data System) because it is difficult to decouple.
Spectrum
This is basically an amplitude modulation wave without the carrier therefore reducing power wastage, giving it a 50% efficiency rate.
Generation
DSBSC is generated by a mixer. This consists of an audio source combined with the frequency carrier.
Demodulation
For demodulation the audio frequency and the carrier frequency must be exact otherwise distortion results.
Wikimedia Foundation.
2010.
Look at other dictionaries:
Double-sideband suppressed-carrier transmission — (DSB SC): transmission in which (a) frequencies produced by amplitude modulation are symmetrically spaced above and below the carrier frequency and (b) the carrier level is reduced to the lowest practical level, ideally completely suppressed. In… … Wikipedia
Double-sideband reduced-carrier transmission — (DSB RC): transmission in which (a) the frequencies produced by amplitude modulation are symmetrically spaced above and below the carrier and (b) the carrier level is reduced for transmission at a fixed level below that which is provided to the… … Wikipedia
Single-sideband suppressed-carrier transmission — Single sideband suppressed carrier (SSB SC) is a telecommunication technique, which belongs to the Amplitude modulation class.The information represented by the modulating signal is contained in both the upper and the lower sidebands. Since each… … Wikipedia
Reduced-carrier transmission — is an amplitude modulation (AM) transmission in which the carrier wave level is reduced to reduce wasted electrical power. Suppressed carrier transmission is a special case in which the carrier level is reduced below that required for… … Wikipedia
Sideband — The power of an AM signal plotted against frequency. Key: fc is the carrier frequency, fm is the maximum modulation frequency In radio communications, a sideband is a band of frequencies higher than or lower than the carrier frequency, containing … Wikipedia
Single-sideband modulation — (SSB) is a refinement of amplitude modulation that more efficiently uses electrical power and bandwidth. It is closely related to vestigial sideband modulation (VSB) (see below).Amplitude modulation produces a modulated output signal that has… … Wikipedia
Independent sideband — (ISB) is an AM single sideband mode which is used with some AM radio transmissions. Normally each sideband carries identical information, but ISB modulates two different input signals mdash; one on the upper sideband, the other on the lower… … Wikipedia
DSBSC — Double Sideband Suppressed Carrier Contributor: CASI … NASA Acronyms
Amplitude modulation — Passband modulation v · d · e Analog modulation AM · … Wikipedia
Modulation — For musical change of key, see Modulation (music). For other uses, see Modulation (disambiguation). Passband modulation v · d · e … Wikipedia
