GATE Electrical Engineering (EE) 2017 Shift 2 Solved Paper

Question : 42 of 65

Marks: +1, -0

A cascade system having the impulse response

h_1(n)={\{\table 1,-1 ; ↑\}}

and

h_2(n)={\{\table 1,1 ; ↑\}}

is shown in the figure below, where symbol ↑ denotes the time origin.

The input sequence x(n) for which the cascade system produces an output sequence

y(n)={\{\table 1,2,1,-1,-2,-1 ; ↑\}}

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