QUESTION 3 10 points Save Answer Which of the following is an accurate classific

Question

QUESTION 3 10 points Save Answer Which of the following is an accurate classification and description of the different types of signals? Signals can be classified as: Analog Signals -x(t): Continuous-time and continous amplitude (t is a real number) Discrete Time Signals -x(n): Discrete-time and continuous amplitude (n is an integer) - Digital Signals - x(n): Discrete-time and discrete amplitude (n is an integer and x(n) is quantized) Signals can be classified as: Analog Signals -x(t): Continuous-time and continous amplitude (t is a real number) - Digital Signals - x(n): Discrete-time and discrete amplitude (n is an integer and x(n) is quantized) Signals can be classified as: Analog Signals -x(t): Continuous-time and continous amplitude (t is a real number) Discrete Time Signals -x(n): Discrete-time and continous amplitude (n is an real, x(n) is discrete) - Digital Signals - x(n): Discrete-time and discrete amplitude (n is real and x(n) is quantized) Signals can be classified as: Continuous Time Signals -x(): Continuous-time and continuous amplitude (t is a real number) Discrete Time Signals -x(n): Discrete-time and continuous amplitude (n is an integer, x(n) is quantized) Digital Signals - x(n): Discrete-time and discrete amplitude (n is an integer and x(n) is quantized)

Explanation / Answer

1)

a) Correct, analogue signal have continuous in time as well as in amplitude and t is real numbers.

b) correct, discrete time signal have continuous amplitude but discrete values of time i.e. integers.

c) Correct. Digital signal is defined as the signal which has discrete quantized amplitude and discrete time i.e. integers.

2)

a) Correct. Analogue signal have both continuous in time and amplitude with real t.

b) Correct. Digital signal have discrete quantized amplitude and discrete time i.e. samples.

3)

a) Correct. Analogue signal have continuous in time as well as amplitude with real t.

b) Incorrect. Discrete time signal is continuous in amplitude but discrete in time but n is integer not real.

c) Incorrect. Digital signal is discrete in time as well as discrete in amplitude and n is integers.

4)

a) Correct. Continuous time signal is nothing but anlaog signal having continuous in time as well as in amplitude.

b) Incorrect. Discrete time signal is discrete in time but continuous in amplitude, but X(n) is not quantized.

C) Correct. Digital signal is both discrete in time as well as amplitude with quantized X(n) and n is integers.

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