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Unformatted text preview: x [ n ], h [ n ], and y [ n ]. (b) Repeat part (a) for input signal x [ n ] = u [ n ]2 u [ n2] + u [ n4] . Your answer should be in the form of a graph of y [ n ]. 6. The output y [ n ] resulting from input x [ n ] to a DT LTI system with impulse response h [ n ] is, of course, given by the convolution sum y [ n ] = x [ n ] * h [ n ] . For a DT system with impulse response h [ n ] = 2 δ [ n ] + δ [ n1] and “truncated ramp” input x [ n ] = { 1 , 2 , 3 } for n = 1 , 2 , 3 , obtain y [ n ] by evaluation of the convolution sum using both • the “additive” graphical evaluation. • the “multiplicative” graphical evaluation. 2...
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 Fall '08
 MUSCHINSKI
 Digital Signal Processing, LTI system theory, Impulse response, DT LTI

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