amplitude modulation wave-type

Thread Starter

jayanthyk192

Joined Jan 23, 2010
80
Hi,


In amplitude modulation,the signal m(t) is modulated over the carrier to get packets .but insted why dont we simple do s(t)=Ac*cos(wt)+m(t) to get the a wave that is periodically clamped with respect to m(t),all we need a high freq. carrier and this does the job.please tell me why is not used and why a packet wave is chosen.

Thank you.
 
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