Radar

{
  "id": "MLC-T-ENV-022976",
  "term": "Radar",
  "field": "Environment",
  "definition": "1. A system whereby short electromagnetic waves are transmitted and any energy which is scattered back by reflecting objects is detected. Acronym for radio detection and ranging.\n\n2. A radio detection system that transmits short bursts (pulses) of rf energy and detects their echos from objects (targets) such as aircraft or ships. Note: The round-trip propagation time for the echo return may be used to determine the target's range (distance from the radar's antenna). If the transmitting antenna has a narrow beam (the usual case), the azimuth or elevation of the target may also be determined. Synonym primary radar. Contrast with secondary radar.",
  "subject": "Science and research",
  "references": [
    "Environmental Geophysics Glossary",
    "General Services Administration Federal Standard 1037C, Glossary of Telecommunication Terms, 1996"
  ],
  "url": "https://mlchart.com/terminology/environment/radar/"
}