Define Radar

January 25, 2024 Post a Comment

Define radar

radar, electromagnetic sensor used for detecting, locating, tracking, and recognizing objects of various kinds at considerable distances. It operates by transmitting electromagnetic energy toward objects, commonly referred to as targets, and observing the echoes returned from them.

What does on the radar mean?

idiom. If someone or something is on your radar, you are aware of, or have thought about, them or it. : She has been on my radar since her first novel came out, but I haven't read any of her books yet. Five years ago, having a child wasn't even on my radar. SMART Vocabulary: related words and phrases.

What is a synonym for radar?

beacon. nounlight used as signal, guide. alarm. alert. balefire.

What are 3 uses of radar?

Radars today are used to detect and track aircraft, spacecraft, and ships at sea as well as insects and birds in the atmosphere; measure the speed of automobiles; map the surface of the earth from space; and measure properties of the atmosphere and oceans.

What is radar and example?

Radar (originally acronym for radio detection and ranging) is a detection system that uses radio waves to determine the distance (ranging), angle, and radial velocity of objects relative to the site. It can be used to detect aircraft, ships, spacecraft, guided missiles, motor vehicles, weather formations, and terrain.

What are the 3 types of radar?

Monostatic, Bistatic and Multistatic In a bistatic radar, the transmitter and receiver are separated by a distance similar to the expected target distance (Figure 2). A system that includes multiple spatially distributed monostatic or bistatic radar elements covering a common area is called multistatic radar.

Why is it called radar?

RADAR stands for RAdio Detecting And Ranging and as indicated by the name, it is based on the use of radio waves. Radars send out electromagnetic waves similar to wireless computer networks and mobile phones.

What kind of word is radar?

As detailed above, 'radar' can be a noun or a verb. Noun usage: His sensitive radar for hidden alliances keeps him out of trouble.

How do you use radar in a sentence?

Examples of 'radar' in a sentence

It has an unmanned turret, radar used in fighter jets and an armoured capsule for crew.
Two kinds of radar are used to track air traffic from the ground.
Some of them had a device that told them they were held in the invisible radar beam. ...
You have to put yourselves on the radar screen.

What does fall off the radar mean?

Definition of fall off the radar : to stop being noticed or talked about an actor who has fallen off the radar.

What is a word for speed up?

To expedite something is to make it go faster or speed up the process. Expediting that package might get it to Alaska by tomorrow, instead of next Tuesday.

What does under my radar mean?

: not getting attention : unnoticed He tried to stay under the radar as he went about his business.

What are the 2 types of radar?

Radars can be classified into the following two types based on the type of signal with which Radar can be operated.

Pulse Radar.
Continuous Wave Radar.

What are the 2 main functions of a radar?

The primary functions of the radar receiver are to accept weak target signals, amplify them to a usable level, and translate the information contained therein from RF to baseband.

What is the function of radar?

What is a Radar? A Radar (Radio Detection And Ranging) is an instrument that can detect surrounding objects using radio waves. Thus, in the maritime world, objects such as ships, buoys or birds can be detected by Radars.

What are the four uses of radar?

Applications And Uses of RADAR Remote sensing of environment. Aircraft navigation. Ship Navigation. Air Traffic Controller.

What is the range of radar?

1.6. The two types of radar use either the sky wave or surface wave and typical ranges are 100–3500 km and up to 500 km, respectively.

What is radar and its principle?

The basic principle behind radar is simple - extremely short bursts of radio energy (traveling at the speed of light) are transmitted, reflected off a target and then returned as an echo. Radar makes use of a phenomenon we have all observed, that of the ECHO PRINCIPLE.

What are the 5 basic components of a radar?

Basic design of radar system

Transmitter. The radar transmitter produces the short duration high-power rf pulses of energy that are into space by the antenna.
Duplexer. The duplexer alternately switches the antenna between the transmitter and receiver so that only one antenna need be used.
Receiver. ...
Radar Antenna. ...
Indicator.

What are the advantages of radar?

Because radar uses radio waves instead of light to detect objects, it works well in rain, fog, snow and smoke. This stands in contrast to optical technologies such as cameras – or in the future, lidar – which are generally susceptible to the same challenges as the human eye.