radar beam

radar beam

[′rā‚där ‚bēm]
(electromagnetism)
The movable beam of radio-frequency energy produced by a radar transmitting antenna; its shape is commonly defined as the loci of all points at which the power has decreased to one-half of that at the center of the beam.

radar beam

A beam of focused electromagnetic energy radiated by radar. It is akin to a searchlight beam, although not in the visible spectrum. See fan beam.
References in periodicals archive ?
Unlike conventional mechanical apertures which steer a radar beam using motorized gimbals, Echodyne's MESA requires no moving parts to steer its beam.
Combining the azimuth scanning capability of the AESA panel with that created by antenna rotation allows the radar beam to dwell for a longer time on targets of interest, allows more rapid track formation, and allows a range of azimuth scan rates to be created from an array turning at a single speed.
To be detected in the radar beam (elevation 4[degrees] during the foggy morning and between 3-8[degrees] on clear mornings at the same radar location), cranes flying over the observers near the roost on 17 November (~1,100 m from the radar) were between 80-118 m above ground level (AGL).
Shturm is a short-range, radio command-guided missile while the Ataka missile%s guidance is by narrow radar beam.
The first method used by Gatso and mobile cameras is to send a laser or radar beam at the passing vehicle.
A concentric waveguide directs the radar beam, alleviating divergence problems and echoes from tank walls and surrounding structures.
Vogfjord's team also monitors the volcano with the help of satellite imaging, a radar beam from the airport that sees anything above an altitude of three kilometers (1.
Known as Gotcha, the computer and associated systems are being used as a virtual lens that focuses a radar beam to produce near real-time pictures of an area.
The second camera type works with a radar beam which detects when a car jumps the white line.
The weapons system would have locked on to your radar beam and a whole lot of very nasty things would have followed it.
Unlike the current Gatso speed camera, which sends out a radar beam to measure a car's speed over a set distance, the new product uses sensors under the road.
The Rosemount 5402, High Frequency Transmitter (~ 26 GHz) utilizes a narrower radar beam for installations that have tall or narrow nozzles, where the nozzle is close to the tank wall, or to avoid disturbing objects the tank.

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