Question

What is RADAR?

Answer 1

Hint: The full form of RADAR is Radio Detection and Ranging. RADAR is a detection system and it is used to determine the distance, angle, and velocity of objects. It sends out electromagnetic waves to wireless devices. It observes different objects around the world. RADAR transmits low pulse frequency to avoid ambiguities.

Complete answer:
The term RADAR is Radio Detection and Ranging. It uses radio waves to determine the object. It is a device and it consists of a transmitter and receiver and it emits radio waves to process their reflections. It is used to detect and locate objects and also used to detect aircraft, ships, etc. Radars are used to detect and track at the sea level and also track insects and birds in the atmosphere as well as to measure properties of the oceans. Today the radar is used to measure the speed of automobiles as well as map the surface of the earth from space.

RADAR transmits electromagnetic power as well as generates energy back to the exact target. The returned signals are received again at the position of the target. There are different types of RADARS used today, they are;
-Biostatic RADAR
-Doppler RADAR
-Monopulse RADAR
-Passive RADAR
-Weather RADAR
-Mapping RADAR

RADAR has four main components, they are transmitter, receiver, antenna, transmit/receive switch. A transmitter is used to create a signal. The transmit/receive switch is used to transmit and receive signals to the antenna. Antennas send out these signals to the atmosphere and receive the signals back again. A receiver is detected, amplifies, and transmits the signals into video format.

Note: RADAR is an electromagnetic-based system used to transmit the electromagnetic waves and receive them back again. Detection refers to whether the target is present or not. The target can be stationary or movable.Radars can be used for various applications such as ground, sea and space.