Carrier wave > Related Articles
From Citizendium, the Citizens' Compendium
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Parent topics
- Radio [r]: Transmission and reception of information, which can be voice, data or imagery over electromagnetic radiation in free space (i.e., wireless). The information is modulated onto a carrier wave [e]
- Radar [r]: A contraction of radio direction and ranging, used for detecting and tracking targets, navigation, imagery, and special applications. [e]
- Television [r]: Electronic transmission of moving pictures. [e]
Subtopics
- Oscillator [r]: Add brief definition or description
- Modulation [r]: The process of varying one waveform in relation to another waveform. [e]
- Amplitude modulation [r]: Changing the height of the peaks of a periodic waveform, such as a radio wave, to carry information. [e]
- Frequency modulation [r]: Technique for imposing information onto a electromagnetic signal of constant frequency -- the "carrier wave". [e]
- Superheterodyne [r]: A form of reception in which the frequency of an incoming signal is mixed with a locally generated signal and converted to an intermediate frequency in order to facilitate amplification and the rejection of unwanted signals. [e]
Other related topics
- Electronic warfare [r]: A subset of information operations that deals with the use of electromagnetic or kinetic means to degrade an enemy's military electronics systems, to be able to operate one's own electronics in the face of enemy attacks, and to evade those attacks through protection or deception [e]
- Signals intelligence [r]: the practice of acquiring information through monitoring the electromagnetic signals deliberately trasmitted by an opponent, including communications (COMINT) and non-communications electronics such as radar (ELINT). [e]
- Radiofrequency MASINT [r]: Collection and processing of intelligence information derived from unintentional electromagnetic radiation from targets of interest [e]
- Digital selective calling [r]: A method to address specific marine radios or groups of vessels, and to send a distress signal, including the vessel's location if the radio is connected to a GPS receiver [e]
- EC-130 COMMANDO SOLO [r]: C-130 Hercules aircraft variant with transmitters for psychological operations and communications jamming. [e]
- Emergency Position Indicating Radio Beacon [r]: Intended for search and rescue of ships and boats, this is a beacon that will float free of a sinking vessel, and broadcast a position report, preferably with GPS, to a worldwide cluster of monitoring satellites. [e]
- Global Maritime Distress and Safety System [r]: Mandated by the Safety of Life at Sea convention of the International Maritime Organization system of digital radio and other systems for ships to receive alerts and signal search and rescue organizations when they are in distress. [e]
- HAVE QUICK II [r]: A family of military UHF jam-resistant radios, intended for air-to-air and air-to-ground use [e]
- Information security [r]: The set of policies and protective measures used to ensure appropriate confidentiality, integrity and availability to information; usually assumed to be information in a computer or telecommunications network but the principles extend to people and the physical world [e]
- Led Zeppelin Radio [r]: A commercial-free, satellite radio station on the XM Satellite Radio platform, broadcasting the music of Led Zeppelin. [e]
- Marine navigation [r]: A term including the literal process of navigation, or finding position and course, but of the overall process of safe operation of a water vessel, such as avoiding collisions [e]
- SIGINT before the Second World War [r]: Add brief definition or description
- SIGINT from 1945 to 1989 [r]: Add brief definition or description
- SIGINT ground-based platforms [r]: Fixed, transportable or mobile facilities, on land, which contain signals intelligence sensors [e]
- SIGINT in the Second World War [r]: Add brief definition or description
- SIGINT space-based platforms [r]: Add brief definition or description
- Safety and survivability of naval vessels [r]: Beyond the rules of the Safety of Life at Sea convention, protective measures, for naval vessels, against their own systems as well as enemy fire [e]
- Satellite communications [r]: Telecommunications that makes use of a high-altitude relay(s), usually artificial satellites in Earth orbits but potentially a relay in the atmosphere [e]
- Science fiction [r]: A story-telling genre that presents alternatives to what is currently considered scientifically possible or that extrapolates from present-day knowledge. [e]
- TRC-170 [r]: A U.S. Army radio, with line-of-sight (LOS) and beyond-line-of-sight (BLOS), using troposcatter technology. It is transportable meaning that it can moved by tactical transport facilites but must be stopped and set up to work, and is part of the Joint Network Node system. [e]
- TRC-190 [r]: A High Capacity Line of Sight (HCLOS) microwave radio, used with the Joint Network Node of the U.S. Army to provide high-speed connectivity between nodes. [e]
- TSC-154 [r]: A U.S. military satellite earth station and individual user access facility, carried on a High Mobility Multipurpose Wheeled Vehicle (HMMWV), originally for interconnecting Mobile Subscriber Equipment (MSE) or providing extended range connection to MSE users, but now interconnecting Joint Network Nodes not in line-of-sight with one another. [e]
