electromagnetic countermeasures

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• Electromagnetic compatibility — (EMC) is the branch of electrical sciences which studies the unintentional generation, propagation and reception of electromagnetic energy with reference to the unwanted effects (Electromagnetic Interference, or EMI) that such energy may induce.… …   Wikipedia

• active countermeasures — Those countermeasures that require transmissions from friendly sources. Active countermeasures can be electromagnetic, IR (infrared), electro optical, or microwave. Among electromagnetic active countermeasures, the most common are deception… …   Aviation dictionary

• Electronic countermeasures — NOTOC Electronic countermeasures (ECM) are a subsection of electronic warfare which includes any sort of electrical or electronic device designed to trick or deceive radar, sonar, or other detection systems like IR (infrared) and Laser. It may be …   Wikipedia

• electronic countermeasures — noun electronic warfare undertaken to prevent or reduce an enemy s effective use of the electromagnetic spectrum • Syn: ↑ECM • Hypernyms: ↑electronic warfare, ↑EW • Hyponyms: ↑electronic deception, ↑jamming, ↑ …   Useful english dictionary

• technical surveillance countermeasures — Techniques and measures to detect and neutralize a wide variety of hostile penetration technologies that are used to obtain unauthorized access to classified and sensitive information. Technical penetrations include the employment of optical,… …   Military dictionary

• Electronic Countermeasures — ECM, methods that use the electromagnetic spectrum in order to confuse enemy radar and detection systems …   English contemporary dictionary

• electronic counter-countermeasures — That division of electronic warfare involving actions taken to ensure friendly, effective use of the electromagnetic spectrum despite the enemy’s use of electronic warfare (EW). Also called ECCM …   Aviation dictionary

• electronic countermeasures — A branch of electronic warfare involving actions taken to prevent or reduce the effectiveness of energy, equipment, and tactics employing, or affected by, electromagnetic radiation and to exploit the enemy’s use of such radiation. ECMs include… …   Aviation dictionary

• passive countermeasures — The detection and analysis of the enemy’s electromagnetic emissions. Also called ESM (electronic support measures) …   Aviation dictionary

• electronic counter-countermeasures — noun electronic warfare undertaken to insure effective friendly use of the electromagnetic spectrum in spite of the enemy s use of electronic warfare • Syn: ↑ECCM • Hypernyms: ↑electronic warfare, ↑EW …   Useful english dictionary

• Signals intelligence — SIGINT redirects here. For the UNIX signal, see SIGINT (POSIX). RAF Menwith Hill, a large site in the United Kingdom, part of ECHELON and the UK USA Security Agreement. Signals intelligence (often contracted to SIGINT) is intelligence gathering… …   Wikipedia