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1

Evaluate the convolution of the given discrete values: x(n) = [-2, 0.5, 3] h(n) = [-1, -2, 1.5]

a. [-3,4.75,5.5,6.5,3]

b. [-3,4.75,5.5,-6.5,-3]

c. [2,3.5,-7,5.25,-4.25]

d. [2, 3.5, -7, 5.25, 4.5]

d. [2, 3.5, -7, 5.25, 4.5]

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2

Which signal is considered to be unstable based on the DT system stability boundary principle?

a. DC Signal

b. Unit Step

c. Exponential

d. Sinusoidal

b. Unit Step

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3

Evaluate the convolution of the given discrete values: x(n) = [-0.75, 0.5, 0.7] h(n) = [2, -0.4, 3]

a. [-1.5, 1.3, -1.05, 1.22, 2.1]

b. [-3,4.75,5.5,-6.5,-3]

c. [-1.5, 1.3, -1.05, -1.22, 2.1]

d. [2, 3.5, -7, 5.25, 4.5]

a. [-1.5, 1.3, -1.05, 1.22, 2.1]

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4

Noise always affest the signal in a communications system at the_________.

a. transmitter

b. channel

c. information source

d. destination

b. channel

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5

According to the image, the equation best represents the:

a. nomalized convolution

b. nomalized correlation

c. autocorrelation

d. cross correlation

c. autocorrelation

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6

A piece of communcation equipment has two stages of amplification with gains of 51 and 77, and two loss stages with attenuation factors of 0.05 and 0.085. The output voltage is 2.9V. What is the input voltage?

a. 1.750V

b. 0.174V

c. 0.546V

d. 4.092V

b. 0.174V

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