amplitude modulation..?

[savadi]

dsb.sc am

DSB-Sc is one kind of AM . In conventional AM the carrier is not suppresed but in DSB-SC the carrier is suppresed. Conventional AM has a simple demodulator unlike DSB-Sc.

 

[caep_daniel]

differences between dsbsc and am

that's too easy.no problem to analysis so in detail.

 

[as_518]

dsb modulation baseband

It should be noted that both dsbtc and dsbsc are AM modulation techniques. In DSBTC modulation a nonlinear element (like diode) is used for modulation while in DSBSC a balnced modulator is used. In demodulation an envolpe detector (a diode followed by LPF) could be used for DSPTC while for DSBSCa coherent detection must be used.

 

[haiabis]

Re: amplitude modulation+kennedy

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.
Amplitude modulation (AM) is a technique used in electronic communication, most commonly for transmitting information via a radio carrier wave. AM works by varying the strength of the transmitted signal in relation to the information being sent. For example, changes in the signal strength can be used to specify the sounds to be reproduced by a loudspeaker, or the light intensity of television pixels.