Signal-to-noise ratio

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Definition of Signal-to-Noise Ratio

Signal-to-noise ratio (SNR) is a metric used to express the strength and efficacy of a signal being received in comparison to the background noise. The ratio is obtained by dividing the power of the signal by the power of the noise. With a higher value of SNR, the quality of the signal is enhanced.

In simpler terms, the SNR signifies the relation between the desired signal and the unwanted noise interference. It enables the measurement of the level of signal clarity and the potential for accurate data transmission in a given setting. A higher SNR enables better signal classification, improves communication system quality, and reduces the chances of data error or loss.

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