Let the message signal M(t) be a WSS process with the autocorrelation function R, (7) =16sinc(10000 r) and the maximum magnitude of the message signal is 6. This message signal is modulated and transmitted through a channel with 50dB attenuation and additive white noise with psd N,/2=1012 W/Hz. If we require that the output SNR (the SNR after demodulation) be 50DB, in each of the following cases find the necessary transmitted power. a. DSB-SC amplitude modulation b. USSB amplitude modulation c. Conventional amplitude modulation with a modulation index of 0.8. Hint: Determine the bandwidth W of the message by observing its psd and express the baseband SNR in terms of the transmitted power Pr. Note 10log(P, / P)=50DB 3.

Let the message signal M(t) be a WSS process with the autocorrelation function R, (7) =16sinc(10000 r) and the maximum magnitude of the message signal is 6. This message signal is modulated and transmitted through a channel with 50dB attenuation and additive white noise with psd N,/2=1012 W/Hz. If we require that the output SNR (the SNR after demodulation) be 50DB, in each of the following cases find the necessary transmitted power. a. DSB-SC amplitude modulation b. USSB amplitude modulation c. Conventional amplitude modulation with a modulation index of 0.8. Hint: Determine the bandwidth W of the message by observing its psd and express the baseband SNR in terms of the transmitted power Pr. Note 10log(P, / P)=50DB 3.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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