Question
Arrange the steps of sampling and processing a continuous-time signal:
A. Apply the sampling theorem to acquire discrete samples
B. Perform discrete-time processing (e.g. filtering)
C. Start with a continuous-time signal
D. Reconstruct a continuous-time signal from the processed samples
Choose the correct answer from the options given below:
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
C, A, B, D
Signal Sampling and Processing Steps
To effectively handle a continuous-time signal, a specific sequence of operations is followed. This process moves from the analog domain to the digital domain and potentially back.
Correct Sequence for Sampling and Processing
- Start with a continuous-time signal (C): The process begins with the original analog signal.
- Apply the sampling theorem (A): The continuous signal is converted into discrete samples. This step is critical and must follow the Nyquist-Shannon sampling theorem to ensure accurate representation.
- Perform discrete-time processing (B): Once sampled, the signal becomes a discrete-time signal. Various operations, such as filtering or analysis, are performed on these samples.
- Reconstruct a continuous-time signal (D): If required, the processed discrete signal can be converted back into an approximate continuous-time signal using reconstruction techniques.
Following this logical flow, the correct order is C, A, B, D.
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