SINAD
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SINAD is the abbreviation for signal-plus-noise-plus-distortion to noise-plus-distortion ratio. This is calculated as one of:
- The ratio of (a) total received power, i.e., the received signal-plus-noise-plus-distortion power to (b) the received noise-plus-distortion power.
- The ratio of (a) the recovered audio power, i.e., the original modulating audio signal plus noise plus distortion powers from a modulated radio frequency carrier to (b) the residual audio power, i.e., noise-plus-distortion powers remaining after the original modulating audio signal is removed.
The SINAD is usually expressed in dB.
Source: Federal Standard 1037C in support of MIL-STD-188