Homework 6 Practice Problems on Signals and Systems | ECE 300, Assignments of Electrical and Electronics Engineering

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ECE 300 Signals and Systems Homework 6 Due Date: April 23, 2009 at the beginning of class Homework 7 due Tuesday April 28, 2009 Exam 2, Thursday April 30, 2009 Problems: 1. Assume x(7), which has a fundamental period of 2 seconds, has the following spectrum (all phases are multiples of 45 degrees) 2) a —— — ma —_- VB = one icone veee voote --te-- boon 8 : 2 1 1 = 1 nee # ' = H 0.8}. - ------ pe neee ree qoccee soneee woe npt een | I of ee vee —— _ —_ 4 3 2 4 9 4 2 3 Harmonic 200 /-——-— poo 7 —— ! — oT Phase (degrees) 2... ! -100 t 200! ben i 1 . L. “4 3 2 4 0 1 2 3a Harmonic a) What is (2)? Your expression must be real. b) What is the average vaiue of x(r)? c) What is the average power in x(1)? Spring 2009