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Unformatted text preview: 1 ECE 402 TEST 2 SUMMER 2007 July 19, 2007 NAME: INSTRUCTIONS: Please Read If you need more room, write on the back side of the PREVIOUS page, not the back of the current page!! Please do not use your paper. Open book(s) and notes, including any lab related material. Cell phones off and out of sight. Be sure what you have written down is correct. YOU COULD LOSE POINTS FOR INCORRECT STATEMENTS. There are 7 problems on 5 total pages, including this page, make sure you have all pages now. The tests must be turned in by the time announced for full credit. KEEP YOUR ANSWERS BRIEF AND TO THE POINT. DONT WASTE TIME WRITING LONG DISCUSSIONS. SOME Useful Facts x n = f G ( nf ), where x n are the Fourier Series coefficients of periodic signal x ( t ), and G ( f ) is the Fourier Transform of a single period of x ( t ). Convolution of a signal of width w 1 with a signal of width w 2 results in a signal of width w 1 + w 2 . From the Fourier Transform table: w ( t ) = k = X k =- ( t- kT ) W ( f ) = 1 /T n = X n =- ( f- n/T ) 2...
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This note was uploaded on 04/02/2008 for the course ECE 402 taught by Professor Townsend during the Spring '08 term at N.C. State.
- Spring '08