SINADR
From HandWiki
Signal-to-noise and distortion ratio (SINADR[1]) is a measurement of the purity of a signal. SINADR is typically used in data converter specifications. SINADR is defined as:
- [math]\displaystyle{ \mathrm{SINADR} = \frac{P_\mathrm{signal}}{P_\mathrm{quantizationError} + P_\mathrm{randomNoise} + P_\mathrm{distortion}} }[/math]
where [math]\displaystyle{ P }[/math] is the average power of the signal, quantization error, random noise and distortion components. SINADR is usually expressed in dB. SINADR is a standard metric for analog-to-digital converter and digital-to-analog converter.
SINADR (in dB) is related to ENOB by the following equation:
- [math]\displaystyle{ \mathrm{SINADR} = ENOB\cdot 6.02 + 1.76 }[/math]
References
- ↑ Lavrador, P.M.; Borgesdecarvalho, N.; Pedro, J.C. (March 2004). "Evaluation of signal-to-noise and distortion ratio degradation in nonlinear systems". IEEE Transactions on Microwave Theory and Techniques 52 (3): 813–822. doi:10.1109/TMTT.2004.823543. ISSN 0018-9480. Bibcode: 2004ITMTT..52..813L.
See also
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