Noise figure

{
  "id": "MLC-T-MET-010646",
  "term": "Noise figure",
  "field": "Meteorology and atmospheric science",
  "definition": "A measure of the degradation of the signal-to-noise ratio caused by components in a radio frequency signal chain, such as a receiver in a weather radar or satellite instrument. It is the ratio of the output noise power of a device to the portion thereof attributable to thermal noise in the input termination at standard noise temperature. An ideal, noiseless component has a noise figure of 1, or 0 decibels (dB).",
  "synonyms": [
    "noise factor"
  ],
  "see_also": [
    "noise level",
    "signal-to-noise ratio"
  ],
  "url": "https://mlchart.com/terminology/meteorology/noise-figure/"
}