Glossary Term
Signal to Noise Ratio
Performance MetricsEN
Definition
The ratio of a measure of useful information from a system to that of a measure of interfering unwanted, often random, information that is also present.
Extended Notes
Source: National Cancer Institute, NCI Thesaurus 26.09d, C94983. NCI definition, reproduced without modification under CC BY 4.0. Source identity and definition checked automatically on 2026-10-20. No individual clinical interpretation or human reviewer is asserted.
Also Known As
S/NSignal to Noise RatioSNR