Question
Download Solution PDFWhich one of the following represents the output signal-to-noise ratio of a uniform quantizer? (where P denotes average power of the message signal m(t) and R denotes number of bits per sample)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Signal-to-quantization-noise ratio (SQNR) is a widely used quality measure in analyzing digitizing schemes such as pulse-code modulation (PCM). The SQNR reflects the relationship between the maximum nominal signal strength and the quantization error (also known as quantization noise) introduced in the analog-to-digital conversion.
The SQNR formula is derived from the general signal-to-noise ratio (SNR) formula:
Calculation:
Given the average power of the message signal
P = mmax2(t)
Noise power:
Pnoise = Δ2/12 = mmax2(t)/3L2
Signal to noise ratio:
Last updated on Jul 2, 2025
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