A linear time-invariant system has impulse response h[n] = n u[n]. (a) Determine y 1 [n],
Question:
A linear time-invariant system has impulse response h[n] = αnu[n].
(a) Determine y1[n], the response of the system to the input x1[n] = ej(π/2)n.
(b) Use the result of Part(a) to help to determine y2[n], the response of the system to the input x2[n] = cos(π n /2).
(c) Determine y3[n], the response of the system to the input x3[n] = ej(π/2)nu[n].
(d) Compare y3[n] with y1[n] for large n.
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Related Book For
Discrete Time Signal Processing
ISBN: 978-0137549207
2nd Edition
Authors: Alan V. Oppenheim, Rolan W. Schafer
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