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Passive Radar Technology

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Sensors & Electronics Technology

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Clutter Cancelation, Detection, Multistatic Localization and Tracking, Passive Radar, Space-Time Processing


The research on passive radar is being conducted in many countries in the world. The covertness of operation make Passive Radar very attractive for military purposes. As provide silent operation and anti-stealth capability, it can be used to detect various thread without warning enemy . At the present moment the ground base passive radars enter maturity stage and in near future will be diploid in the field protecting our borders. As they can be light, low prize and compact, they can be deployed in many scenario and placed on vehicles, airplanes and ships. Their performance in many cases are much better than conventional radar, providing better accuracy and fast update time, so they can be used in near future not only as gap filler, but also as long range sensor for detecting and tracking the possible air raids, ballistic missile launches, border crossing at low altitudes and also for military bases and critical infrastructure protection detecting not only airplanes such as fighters and bombers, but also much smaller objects like missiles, mortals and drones. As the Doppler resolution of passive radar is much better that typical active ones, they will also be used for detecting slow motion targets like ground vehicles, slow boats, humans and even crawling soldiers. The wide knowledge about this technology, its potentials and limitations, as well as operational aspects are key element for future procurement, deployment and effective exploitation of passive radars. The problems mentioned above have strong relations with the LTCR’s as follows: - LTCR Priority 10 - Counter Low Signature Airborne Targets; COP, active and passive sensors, target RCS vs bistatic observation angle, - LTCR Priority 12 - Counter Rocket, Artillery and Mortar: advanced radars - LTCR Priority 13 - Counter Threat to Low Altitude Air Vehicles; sensors to detect threat - LTCR Priority 25 - Intelligence Surveillance & Reconnaissance (ISR) Collection Capability: Active and passive sensors Moreover there is connection between the problems mentioned above and CNAD DAT ITEM 1: Large Aircraft Survivability and DA ITEM 3: Protection of Helicopters from Rocket-Propelled Grenades (RPG) As far as relations with UK Taxonomy are concerned one can point out on topics as follows: - A09.02 – DSP Technology, - A09.08 - Information and Data Fusion Technology - B06.02 – RF Sensors - B10.09 – Non-Co-operative Target Recognition. - C01.03 - Platform and System Concept Studies - C06.09 - Counter Stealth - R02.L02 - Counter Low Signature Airborne Targets


The goal of the LS on “Passive Radar Technology” is to provide to the wide military and civil audience the information about passive radars including passive radar fundamentals, properties of passive radars using different illumination sources, availability of illuminators, coverage for different altitudes, range, Doppler and localization accuracy, ability of deployment in different scenario etc.


- Passive radar fundamentals. - Signal models, propagation models, coverage analyses. - Properties of different passive radars using different illuminators of opportunity like FM, DAB, DVB-T, GSM, WiFi, WiMax, LTE, satellite, active radars. - Signal processing and clutter cancelation - Bistatic tracking, target localization and Cartesian tracking - Target imaging, passive SAR and ISAR, multistatic imaging - User requirements, applications - Existing demonstrators and commercial systems.

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