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Test: The Discrete -Time Fourier Series - Question 1

Consider a periodic signal x[n] with period N and FS coefficients X [k]. Determine the FS coefficients Y [k] of the signal y[n] given in question.

Que: y[n] = x[ n - n_{o}]

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 1

Test: The Discrete -Time Fourier Series - Question 2

Consider a periodic signal x[n] with period N and FS coefficients X [k]. Determine the FS coefficients Y [k] of the signal y[n] given in question.

y[n] = x[n] - x[n-2 ]

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 2

Test: The Discrete -Time Fourier Series - Question 3

Consider a periodic signal x[n] with period N and FS coefficients X [k]. Determine the FS coefficients Y [k] of the signal y[n] given in question.

Que: y[n] = x[n] + x[n + N/2 ] , (assume that N is even)

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 3

Test: The Discrete -Time Fourier Series - Question 4

Que: y[n] = x[n] - x[n + N/2 ] , (assume that N is even)

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 4

Test: The Discrete -Time Fourier Series - Question 5

Que: y[n] = x^{*}[-n]

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 5

Test: The Discrete -Time Fourier Series - Question 6

y[n] = (-1)^{n}x[n], (assume that N is even)

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 6

Test: The Discrete -Time Fourier Series - Question 7

Consider a discrete-time periodic signal

with period N = 10, Also y[n] = x[n] - x[n-1]

Que: The fundamental period of y[n] is

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 7

Test: The Discrete -Time Fourier Series - Question 8

Consider a discrete-time periodic signal

with period N = 10, Also y[n] = x[n] - x[n-1]

Que: The FS coefficients of y[n] are

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 8

Test: The Discrete -Time Fourier Series - Question 9

Consider a discrete-time periodic signal

with period N = 10, Also y[n] = x[n] - x[n-1]

The FS coefficients of x[n] are

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 9

Test: The Discrete -Time Fourier Series - Question 10

Consider a discrete-time signal with Fourier representation.

In question the FS coefficient Y [k] is given. Determine the corresponding signal y[n] and choose correct option.

Que: Y[k] = X[k-5] + X[k+5]

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 10

Test: The Discrete -Time Fourier Series - Question 11

onsider a discrete-time signal with Fourier representation.

In question the FS coefficient Y [k] is given. Determine the corresponding signal y[n] and choose correct option.

Que:

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 11

Test: The Discrete -Time Fourier Series - Question 12

Consider a discrete-time signal with Fourier representation.

In question the FS coefficient Y [k] is given. Determine the corresponding signal y[n] and choose correct option.

Que: Y[k] = X[k]*X[k]

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 12

Test: The Discrete -Time Fourier Series - Question 13

Consider a discrete-time signal with Fourier representation.

Que: Y[k] = Re{X[k]}

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 13

Test: The Discrete -Time Fourier Series - Question 14

A real and odd periodic signal x[n] has fundamental period N = 7 and FS coefficients X [k]. Given that X [15] = j, X [16] = 2j, X [17] = 3j. The values of X [0],X [-1], X [-2], and X [ -3] will be

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 14

Test: The Discrete -Time Fourier Series - Question 15

Consider a signal x[n] with following facts

1. x[n] is a real and even signal

2. The period of x[n] is N = 10

3. X [11] = 5

Detailed Solution for Test: The Discrete -Time Fourier Series - Question 15

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