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  2. Signals intelligence - Wikipedia

    en.wikipedia.org/wiki/Signals_intelligence

    Signals intelligence (SIGINT) is the act and field of intelligence-gathering by interception of signals, whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly used in communication (electronic intelligence—abbreviated to ELINT). [1]

  3. Signals intelligence by alliances, nations and industries

    en.wikipedia.org/wiki/Signals_intelligence_by...

    The Government Communications Security Bureau (GCSB) is responsible for signals intelligence and was established in 1977, with responsibility for Communications and Technical Security as well as SIGINT. Computer security (COMSEC) responsibilities were added later.

  4. Signals intelligence in modern history - Wikipedia

    en.wikipedia.org/wiki/Signals_intelligence_in...

    SIGINT is the analysis of intentional signals for both communications and non-communications (e.g., radar) systems, while MASINT is the analysis of unintentional information, including, but not limited to, the electromagnetic signals that are the main interest in SIGINT.

  5. Measurement and signature intelligence - Wikipedia

    en.wikipedia.org/wiki/Measurement_and_Signature...

    Signal collectors, which concentrate the energy, as with a telescope lens, or a radar antenna that focuses the energy at a detector; Signal detectors, such as charge-coupled devices for light or a radar receiver; Signal processing, which may remove artifacts from single images, or compute a synthetic image from multiple views; Recording mechanism

  6. Electronic warfare support measures - Wikipedia

    en.wikipedia.org/wiki/Electronic_warfare_support...

    Electronic support data can be used to produce signals intelligence (SIGINT), communications intelligence (COMINT) and electronics intelligence (ELINT). [ 2 ] Electronic support measures can provide (1) initial detection or knowledge of foreign systems, (2) a library of technical and operational data on foreign systems, and (3) tactical combat ...

  7. Signals intelligence operational platforms by nation - Wikipedia

    en.wikipedia.org/wiki/Signals_intelligence...

    A United States Air Force Boeing RC-135 aircraft in flight Royal Air Force Hawker Siddeley Nimrod A52 Oste, an Oste class ELINT and reconnaissance ship, of the German Navy. Signals intelligence operational platforms are employed by nations to collect signals intelligence, which is intelligence-gathering by interception of signals, whether between people (i.e., COMINT or communications ...

  8. Foreign instrumentation signals intelligence - Wikipedia

    en.wikipedia.org/wiki/Foreign_instrumentation...

    Since it deals with signals that have communicational content, it is a subset of Communications Intelligence (COMINT), which, in turn, is a subset of SIGINT. Unlike general COMINT signals, the content of FISINT signals is not in regular human language, but rather in machine to machine (instrumentation) language or in a combination of regular ...

  9. Communications Security Establishment - Wikipedia

    en.wikipedia.org/wiki/Communications_Security...

    The Examination Unit (XU) was established during the Second World War, in June 1941, as a branch of the National Research Council.It was the first civilian office in Canada solely dedicated to decryption of communications signals; until then, SIGINT was entirely within the purview of the Canadian military, and mostly limited to intercepts.