The Total solution for NCERT class 6-12
Due to economic reasons, only theupper sideband of an AM wave is┬аtransmitted,but at the receiving station, there is a facility for generating the carrier.Show that if a device is available which can multiply two signals, then it ispossible to recover the modulating signal at the receiver station.
Let┬а╧Йc┬аand┬а╧Йs┬аbe the respective frequencies of thecarrier and signal waves.
Signal received at the receiving station,┬аV┬а=┬аV1┬аcos (╧Йc┬а+┬а╧Йs)t
┬а