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Unformatted text preview: a b c a b c a b c a b c / T S 28.2 ( P 3.27 in textbook). In MATLAB notation, consider the 4point vector s = [a b c d]. and its zeropadded extension x = [s ; zeros(12,1)] Let X denote the DFT of x . Express the DFTs of the following vectors using the entries of X : x1 = s x2 = [ s ; s ] x3 = [ s ; s ; s ; s ; s ] % length=20 x4 = [ s ; z4 ] x5 = [ z4 ; s ] x6 = [ s ; z4 ; s ; z4 ] x7 = [ s ; s ; z4 ; z4 ] where z4 = zeros(4,1) ....
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This note was uploaded on 03/21/2010 for the course ENEE 241 taught by Professor Staff during the Spring '08 term at Maryland.
 Spring '08
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