Missile defense

Missile defense

Measures designed to detect, identify, track, and defeat attacking (ballistic) missiles in both strategic and theater tactical roles, during any portion of their flight trajectory (boost, post-boost, midcourse, or terminal) or to nullify or reduce the effectiveness of such attack.

Industry: Military

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Missile defense

homing device

Military; Missile defense

A device, mounted on a missile, to aid its guidance to a target. The homing device uses sensors to detect the position of, or to help predict the future position of a target, and then directs the ...

superradiance

Military; Missile defense

The process used by a superradiant laser to generate or amplify a laser beam in a single pass through a lasant material, or, in the case of a free electron laser, through an electric or magnetic ...

molniya orbit

Military; Missile defense

This is a highly eccentric orbit with high apogee (.71 to .74) in the northern hemisphere and low perigee in the southern hemisphere. For a specific set of orbital parameters, this orbit has a ...

battle debris

Military; Missile defense

Battle Debris are the fragments produced by the hypervelocity collision of an interceptor with a ballistic missile, post-boost vehicle, or reentry vehicle, objects resulting from intentional ...

sequestration

Military; Missile defense

The reduction or cancellation of new budget authority; unobligated balances, new loan guarantee commitments or limitations; new direct loan obligations, commitments, or limitations; spending ...

exit criteria

Military; Missile defense

Program specific accomplishments that must be satisfactorily demonstrated before an effort or program can progress further in the current acquisition phase or transition to the next acquisition ...

apportionment

Military; Missile defense

1. A determination made by the Office of Management and Budget which limits the amount of obligations or expenditures that may be incurred during a specified time period. An apportionment may limit ...