P.1 For the given base band signal, Sketch the spectrum of AM signal if the carrier frequency 2nf. ,also distinguish between the upper side band and lower side band of the modulated signal. A. 24 P.2 for the signal given in P.1 Sketch the spectrum of DSB-SC signal then differentiate between the both signals.

i)Modulation process takes place in the modulator with two injection signals namely data orinformation and carrier. It is a vital step in generating a decent signal for electronic communication.Whenever the carrier is modulated by the information signal, new signals at different frequenciesare generated as part of the process. These new frequencies occur in the frequency spectrum withinthe range of the carrier frequency. Conclude these frequencies and mathematically explain itsgeneration with the help of diagrams. A) Upper sideband and lower broadbandB) Lower sidefloor and upperside floorC) Lower peak and upper peakD) Upper sideband and lower sidebandE) Lower bandwidth and upper gainF) All of the aboveG) None of the above

urses / Introduction to Electronic Analysis and Design-CE255/E The pure DC signal has Select one: a. The average of the signal over time is Zero. b. The average of the signal over time is Positive. C. A constant value and a single direction. d. A changing value and a single direction. e. A constant value and a changing direction. ESment CE255/EE255 (O1) - Dr. Mamoun Al-Mistar Jump to...

Q2: A modulating signal is used to modulate a carrier signal(AM modulation). Let Pr . Pc. PSB. PuSB. PLSB and u are the total power, carrier power, side band power, upper side band power, lower side band power and modulation index respectively. Prove the following: a. Pc = Pr () c. Pusn = Pisn =) Pr m2 b. Psn = Pr %3D 2+m2 LSB 2+m? (2+m2