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Unformatted text preview: 2 n 3. Part a: x [ n ] = U [ n + 2]2 U [ n ] + U [ n1] Part b: x [ n ] = ( n + 1) U [ n + 1]2 U [ n ]( n1) U [ n3] Part c: x [ n ] = [ n ] [ n1] + U [ n2]U [ n + 1] Problem 8 Part a: Any discretetime signal can be expressed as x [ n ] = X k = k [ nk ] Find the coecients, k . (Hint: we did this in class) Part b: x [ n ] can also be expressed as a sum of unitstep functions x [ n ] = X k = k U [ nk ] Find the coecints, k . (Hint: [ n ] and U [ n ] are related). Problem 9 Problem 1.27 (a), (b), (c) 2...
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This note was uploaded on 02/14/2012 for the course ECE 301 taught by Professor V."ragu"balakrishnan during the Fall '06 term at Purdue UniversityWest Lafayette.
 Fall '06
 V."Ragu"Balakrishnan

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