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Radar - History Working And Applications

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RADAR's. History Of RADAR . There Use in today's life. …

RADAR's. History Of RADAR . There Use in today's life.
Applications Of Radar

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  • 1. RADAR
  • 2.  Radar = RAdio Detection And Ranging  Object-detection system that uses radio waves to determine the range, altitude, direction, or speed of objects Introduction  Can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain  Secretly developed by several nations before and during World War II.
  • 3.  1886 : Hertz showed reflection of radio signal from solid object Background of Radar  1904 : German inventor Christian Hülsmeyer was the first to use radio waves to detect "the presence of distant metallic objects“  He demonstrated the feasibility of detecting a ship in dense fog
  • 4. Basic Principle of Radar
  • 5. Long-range radar antenna, used to track space objects and ballistic missiles. Uses Of Radar 1 Radar of the type used for detection of aircraft. It rotates steadily sweeping the airspace with a narrow beam.
  • 6.  Used in Military purposes  Detect Aircraft, ships, missiles Uses Of Radar 2       Used in Aircrafts Marine Radars Used in port or harbors Used in meteorology and geology purposes Analyse weather formations and terrain Modern Uses         Air traffic control radar astronomy air-defense systems antimissile systems aircraft anti-collision systems ocean surveillance systems outer space surveillance guided missile target locating systems
  • 7. Radar Can Measure Pressure The strength of the echo received from the ionosphere measures the number of electrons able to scatter radio waves or what we call electron pressure
  • 8.  Penetration Capability  Uses electromagnetic wave  Less susceptible to weather conditions Advantages of Radar  Flexible – can be used in number of ways  Reliable
  • 9.  Time factor Disadvantages of Radar  Wide beam spread  Possibility of falsify readings  Interference sources
  • 10. US Air force B2-Spirit Stealth Aircrafts US Air Force F-117 Nighthawk