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Latest Radar Stories

2015-03-04 08:21:24

Raytheon achieves cost savings, critical milestones in satellite terminal upgrades MARLBOROUGH, Mass., March 4, 2015 /PRNewswire/ -- Raytheon Company (NYSE: RTN) has completed a number

2015-03-03 16:21:09

Matthew Tucker recognized for commitment to safety and continuous improvement TEWKSBURY, Mass., March 3, 2015 /PRNewswire/ -- Raytheon Company (NYSE: RTN) announced today that Matthew

2015-02-26 08:22:12

DULLES, Va., Feb. 26, 2015 /PRNewswire/ -- Raytheon Company (NYSE: RTN) was awarded a $35 million sole-source contract by the U.S.

2015-02-23 16:21:32

Company's engineering employees align for innovation activities and community outreach across the U.S. LOS ANGELES, Feb.

2015-02-23 08:34:48

ORLANDO, Fla. and MILTON KEYNES, England, Feb. 23, 2015 /PRNewswire/ -- API Technologies Corp.

2015-02-23 08:20:59

DULLES, Va., Feb. 23, 2015 /PRNewswire/ -- Raytheon Company (NYSE: RTN) and its partner team along with the U.S.

2015-02-22 12:20:04

Event marks first time an operational system displayed at an international air show MELBOURNE, Australia, Feb.

2015-02-20 08:20:49

Blighter's B400 Series PESA e-scan Doppler radars to be integrated with a long range illuminated camera system for day and night operation; Blighter to demonstrate Blighter Guardian at IDEX 2015 (Stand


Latest Radar Reference Libraries

0_d1919fec7bdce959545b042f39346f55
2010-11-15 18:22:54

A radar altimeter measures altitude above the terrain beneath an aircraft as opposed to a barometric altimeter which provides the distance above a pre-determined datum, usually sea level. Radar is the underpinning principle of the system. Radio waves that are reflected back from the ground are timed in order to calculate speed, distance, and time which are related to the each other and can be used to calculate the distance from one point to another. Lloyd Espenschied invented the radar...

6_2794e0fcae75d849e10a80c3137aa8bc2
2004-10-19 04:45:41

Doppler Effect -- The Doppler effect is the apparent change in frequency or wavelength of a wave that is perceived by an observer moving relative to the source of the waves. For waves, such as sound waves, that propagate in a wave medium, the velocity of the observer and the source are reckoned relative to the medium in which the waves are transmitted. The total Doppler effect may therefore result from both motion of the source and motion of the observer. Each of these effects is analyzed...

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Word of the Day
upstander
  • A person who stands up for something, as contrasted to a bystander who remains inactive.
  • One of the upright handlebars on a traditional Inuit sled.
The word 'upstander' in the first sense here is a play on the word 'bystander' and the idea of 'standing up' for something.