HW6 - ECE200 1. Given: Homework #6 Due: July 15 v (t ) = [8...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
ECE200 Homework #6 Due: July 15 1. Given: V )] 2 / 15000 2 cos( 8 ) 3 / 750 2 cos( 10 ) 6 / 250 2 cos( 15 8 [ ) ( p p p p p p + + + + - - - = t t t t v a. Plot the magnitude spectrum of v(t). b. Plot the phase spectrum of v(t). c. Plot the power spectrum in dBW. d. Find the power in the 2 nd harmonic in Watts. e. Find the power in the 3 rd harmonic in Watts. f. Find the total signal power in dBW. g. Calculate the power this signal would deliver to a 5K resistor. h. Determine the noise power in Watts if the SNR for this signal plus noise is 40dB. 2. a. What is the noise power in Watts if the signal-to-noise ratio of the CD player is 100 dB and the signal power is 1 W? b. Given v(t) = [-8 + 6cos(2pi250t + pi/2) – 5cos(2pi500t) – 3cos(2 pi1000t – pi/4)] Volts. What is the total signal power in dBW ? c. An amplifier is used to increase the strength of a signal, Vout = (Amplification)*(Vin). Calculate the power gain in dB if the voltage amplification is 1000. 3.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/03/2008 for the course ECE 200 taught by Professor Escuti during the Summer '07 term at N.C. State.

Page1 / 2

HW6 - ECE200 1. Given: Homework #6 Due: July 15 v (t ) = [8...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online