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Aim

Theory

Pretest

Procedure

Simulation

Posttest

References

Contributors

Feedback

Compare the frequency responses with methods and for different sampling times

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Q1. What does the frequency response of a system represent?

a: The system's output for a given input signal Explanation

Explanation

b: The system's stability over time Explanation

Explanation

c: The steady-state response of a system to sinusoidal inputs of varying frequency Explanation

Explanation

d: The time-domain response of the system to an impulse input Explanation

Explanation

Q2. Which of the following is true for the frequency response of a discrete-time system?

a: It is only defined for continuous signals. Explanation

Explanation

b: It is derived by analyzing the system's output for sinusoidal inputs at discrete frequencies. Explanation

Explanation

c: The frequency response can only be determined using the Z-transform. Explanation

Explanation

d: It represents the system's time-domain response to a unit impulse. Explanation

Explanation

Q3. In discrete-time systems, the frequency response can be obtained by evaluating the system's transfer function at:

Explanation

Q4. Which of the following is the formula for the frequency response of a discrete-time system with the transfer function

Explanation

Q5. What is the effect of sampling a continuous signal at a rate less than twice the highest frequency component?

a: The signal becomes perfectly reconstructed. Explanation

Explanation

b: Aliasing occurs, leading to distortion. Explanation

Explanation

c: The signal is unaffected. Explanation

Explanation

d: The signal's frequency components become zero. Explanation

Explanation

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