BC:3.2 For the discrete time functionf[n] = (0.9e¯j™n/³ +0.9e+i™n/3) (u[n +4] − u[n − 4])Make a table of the values of f[n] for values of |n| ≤ 5.Hand sketch the following signals that are manipu-lations of f[n] and label all nonzero values. If valuesare complex sketch signal strength as the magnitude,and label values in polar form with the angle in de-grees. In cases where the argument of f[] is not aninteger, use the value of zero for the signal. d.)y[n] = f2

Given Data:A discrete-time signal is given as,To Find:d. The sketch of

Answered: BC:3.2 For the discrete time function…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

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BC:3.2 For the discrete time function
f[n] = (0.9e¯j™n/³ +0.9e+i™n/3) (u[n +4] − u[n − 4])
Make a table of the values of f[n] for values of |n| ≤ 5.
Hand sketch the following signals that are manipu-
lations of f[n] and label all nonzero values. If values
are complex sketch signal strength as the magnitude,
and label values in polar form with the angle in de-
grees. In cases where the argument of f[] is not an
integer, use the value of zero for the signal.

Expert Solution

Step 1: Summarize the given data:

Given Data:

A discrete-time signal is given as,

$f open square brackets n close square brackets equals open parentheses 0.9 e to the power of negative j straight pi straight n divided by 3 end exponent plus 0.9 e to the power of j straight pi straight n divided by 3 end exponent close parentheses open parentheses u open square brackets n plus 4 close square brackets minus u open square brackets n minus 4 close square brackets close parentheses.$

To Find:

d. The sketch of $gamma open square brackets n close square brackets equals f open square brackets fraction numerator open vertical bar square root of n close vertical bar over denominator 2 end fraction close square brackets$

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