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Jun 5, 2024 · What Does a Radar do? Radars transmit and receive high-frequency radio waves to detect and track things that you may not be able to see with a naked eye. The data collected by radars help operators in the field make informed decisions about what to do next.
- The Radar Operation Principle
- The Primary Radar
- The Secondary Surveillance Radar
The radar uses the pulse technique, whereby radio waves are transmitted in very short bursts. These bursts are known as pulses. The duration of each pulse is called pulse width/length. As these pulses travel at the speed of light, in a short time multiple pulses can be produced. The time between two pulses is called Pulse Recurrence Interval (PRI) ...
The primary radar is the most basic form of radar. As said before, the range is based on the echo principle, while the bearing of the object or the aircraft is calculated based on the searchlight principle. To explain how the echo principle works, we can think of trying to figure out the distance of an aircraft. So, you point the radar at the aircr...
The Secondary Surveillance Radar (SSR) does not rely on the reflected signal from the target. So, it does not need a lot of power. It sends a pulse, and this pulse must be received, accepted, and then sent back by the target. So, it requires positive cooperation from the target. For this to work, the target is required to carry a piece of equipment...
- Journalist
May 20, 2022 · An airplane's radar is a bit like a torch that uses radio waves instead of light. The plane transmits an intermittent radar beam (so it sends a signal only part of the time) and, for the rest of the time, "listens" out for any reflections of that beam from nearby objects.
Radar of the type used for detection of aircraft. It rotates steadily, sweeping the airspace with a narrow beam. Radar is a system that uses radio waves to determine the distance (ranging), direction (azimuth and elevation angles), and radial velocity of objects relative to the site.
Sep 15, 2023 · Air traffic control uses radar to track planes on the ground and in the air. Police use radar technology to detect the speed of passing motorists. NASA uses radar to map the Earth and other planets, track satellites and space debris and help with things like docking and maneuvering.
May 16, 2024 · Aircraft weather radar is a specialized instrument installed on aircraft to detect and track weather phenomena in the surrounding airspace. It operates by emitting radio waves and analyzing the reflections (echoes) received from precipitation particles in the atmosphere.
May 11, 2015 · The answer is radar, which uses radio waves to detect the presence, direction, distance, and speed of distant objects. Speaking with Chris Smith, Ramsey Faragher of the University of Cambridge Computer Laboratory has his very own radar to demonstrate how this craft-y system works...
