Intelligence ThreatAn identification of known and potential adversary capabilities to collect and exploit information from a given or similar operation. 142
IntensityWith regards to light, intensity is the energy moving through a region of area per unit of time.
Interactive ResponsesInteractive response data on tracked objects to assist in their classification.
Interceptor ClusterA group of objects, which are within divert capability of a deployed interceptor.
Interceptor TrackA function or ability of a sensor to accurately detail an interceptors position and velocity in three dimensions.
Interceptor Track Range (Max)The maximum range at which a sensor can perform the interceptor track function on a single interceptor in a normal (non-man-made) environment.
Interchangeabilit yA condition which exists when two or more items possess such functional and physical characteristics as to be equivalent in performance and durability…
InterchangeabilityA condition which exists when two or more items possess such functional and physical characteristics as to be equivalent in performance and durability…
InterconnectionA connection or link between power systems that enables them to draw on each other's reserve capacity in time of need.
Intercontinental Ballistic Missile (ICBM)A ballistic missile with a range from about 3,000 to 8,000 nautical miles. The term ICBM is used only for land-based systems to differentiate them from…
interface(1) A shared boundary defined by common physical interconnection characteristics, signal characteristics, and meanings of interchanged signals.
Interface Control Document (ICD)(1) A document that describes the requirements of the characteristics that must exist at a common boundary between two or more equipment or computer…
interferencea proceeding, conducted before the Board of Patent Appeals and Interferences (Board), to determine priority of invention between a pending application and…
International Cooperative LogisticsCooperation and mutual support in the field of logistics through the coordination of policies, plans, procedures, development activities, and the common…
International Logistic SupportThe provision of military logistic support by one participating nation to one or more participating nations, either with or without reimbursement.
International LogisticsThe negotiating, planning, and implementation of supporting logistics arrangements between nations, their forces, and agencies.
InteroperabilityThe ability of systems, units, or forces to provide services to or accept services from other systems, units, or forces and to use the services so…
Intruder OperationAn offensive operation by day or night over enemy territory with the primary object of destroying enemy aircraft in the vicinity of their bases.
Inventory Control PointAn organizational unit or activity within a DoD supply system that is assigned the primary responsibility for the materiel management of a group or items…
Inverse Square LawThe law that states when thermal or nuclear radiation is uniformly emitted from a point source, the amount received per unit area at any given distance…
Inverse Synthetic Aperture Radar (ISAR)A type of radar similar to synthetic aperture radar, which uses information from the motion of targets to provide high resolution.
IO(1) Information Operations. (2) Integrated Optic.
IONDSIntegrated Operational Nuclear Detonation Detection System (US).
IonizationA process that produces ions, typically collisions between atoms or electrons, or by interaction with electromagnetic radiation.
ionizing radiation(I-uh-NYZ-ing RAY-dee-AY-shun) A type of radiation made (or given off ) by x-ray procedures, radioactive substances, rays that enter the Earth's…
IonosphereThe region of Earth's atmosphere that extends from about 50 to 300 miles above the surface of the planet and is made up of multiple layers dominated by…