Question
Download Solution PDFFor measuring performance at negligible noise, the signal-to-quantization-noise power ratio of pulse code modulation (PCM) must be where f(t) is analog message and εq(t) quantization error:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
For negligible channel noise, the performance of a PCM (Pulse Code Modulation) system is measured in terms of Signal-to-Quantization-Noise power ratio.
Let: f(t) be the analog message signal
eq(t) be the quantization error
Then, the signal-to-quantization-noise ratio is given by:
\( \left( \frac{S_0}{N_q} \right)_{PCM} = \frac{f^2(t)}{e_q^2(t)} \)
This formula compares the average power of the input signal to the power of quantization noise introduced during digitization.
Correct Answer:
\( \boxed{\left( \frac{S_0}{N_q} \right)_{PCM} = \frac{f^2(t)}{e_q^2(t)} } \)
Last updated on Jul 15, 2025
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