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A certain communication channel is characterized by 90dB attenuation and additive white noise with power spectral density of

A certain communication channel is characterized by 90dB attenuation and additive white noise with power-spectral density of N0/2 =0.5x10^-14 W/Hz.The bandwidth of the message signal is 1.5MHz and its amplitude is uniformly distributed in the interval [-1,1].If we require that the SNR after demodulation be 30dB,in each of the following cases find the necessary transmitter power.a)SSBb)DSBSCc)Conventional AM with modulation index=0.5
 

Jul 31 2020 View more View Less

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