Velocity aliasing

{
  "id": "MLC-T-MET-009964",
  "term": "Velocity aliasing",
  "field": "Meteorology and atmospheric science",
  "definition": "An ambiguity in Doppler radar measurements where the true radial velocity of a target exceeds the maximum unambiguous velocity that the radar can detect. This results in the measured velocity being folded back into the unambiguous range, appearing as a different, incorrect velocity. Aliasing can be mitigated by adjusting the radar's pulse repetition frequency or using velocity dealiasing algorithms.",
  "synonyms": [
    "velocity folding"
  ],
  "see_also": [
    "aliasing",
    "Nyquist frequency"
  ],
  "url": "https://mlchart.com/terminology/meteorology/velocity-aliasing/"
}