Latest Radar Stories
Awards $770 million contract to Raytheon to upgrade Patriot system SEOUL, South Korea, March 30, 2015 /PRNewswire/ -- Cities and key infrastructure in the Republic of Korea will soon be better
Innovative, affordable, interoperable systems to help the Army 'win' at booth #600 HUNTSVILLE, Ala., March 30, 2015 /PRNewswire/ -- Northrop Grumman Corporation (NYSE: NOC) is highlighting
Raytheon delivers stationary and mobile ground segments DULLES, Va., March 30, 2015 /PRNewswire/ -- Raytheon Company (NYSE: RTN) has been awarded a contract valued at up to $45.7 million
Concludes dispute regarding the termination of eBorders contract WALTHAM, Mass., March 27, 2015 /PRNewswire/ -- Raytheon Company (NYSE: RTN) announced today that its United Kingdom
BELTRONICS, maker of the trucking industry’s top-rated BELTRONICS Professional Series STi Magnum™ stealth radar and laser detector, is exhibiting the award-winning unit at the Mid-America
Companies to collaborate on Excalibur, TALON LGR and other systems TUCSON, Ariz., March 26, 2015 /PRNewswire/ -- In a move designed to collaborate and share advanced defense technologies, Raytheon
The corporate partnership is a first of its kind for Center Centre MCLEAN, Va., March 24, 2015 /PRNewswire/ -- Northrop Grumman Corporation (NYSE: NOC) has entered into a partnership
DULLES, Va., March 23, 2015 /PRNewswire/ -- NASA selected Raytheon Company (NYSE: RTN) as the Large Business Prime Contractor of the Year in its agency-level awards to recognize small
WALTHAM, Mass., March 20, 2015 /PRNewswire/ -- The Board of Directors of Raytheon Company (NYSE: RTN) has elected Letitia A. Long as a director effective immediately. Ms.
HERNDON, Va., March 20, 2015 /PRNewswire/ -- The U.S.
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...
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...