SPY-2

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	To oppose or discuss a nomination, please go to CZ:Proposed for deletion and follow the instructions. For the monthly nomination lists, see Category:Articles for deletion. The AN/SPY-2 radar is an add-on to the AEGIS battle management system radar; it gives new capabilities needed for ballistic missile defense that are not part of the basic SPY-1|AN/SPY-1 main AEGIS radar. It is the engagement control radar for the RIM-161 Standard SM-3 missile. Known as the High Power Discriminator (HPD), it gives long-range detection, tracking and discrimination of advanced theater ballistic missile (TBM) threats. Radar targets associated with such threats are very different in speed, geometry, and distance than the aircraft and cruise missile targets for which AN/SPY-1 is optimized. While it will physically be mounted with the AN/SPY-1 on Burke-class or Kongo-class destroyer or a Ticonderoga-class cruiser, other radars, such as the Army transportable TPY-2|AN/TPY-2 or the Navy's sea-based X-band (SBX) ship used in BMD development, have some common characteristics. Other electro-optical MASINT#Space-based Staring Infrared Sensors|sensors, while not radars, complement the BMD mission by detecting launch, such as the present Defense Support Program or the future Space-Based Infrared System (SBIRS). References