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Global Positioning System: Difference between revisions
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GPS allows accurate targeting of various military weapons including [[cruise missile]]s and [[precision-guided munition]]s. To help prevent GPS guidance from being used in enemy or improvised weaponry, the US Government controls the export of civilian receivers. A US-based manufacturer cannot generally export a receiver unless the receiver contains limits restricting it from functioning when it is simultaneously (1) at an altitude above 18 kilometers (60,000ft) and (2) traveling at over 515 m/s (1,000 knots).<ref>Arms Control Association. [http://www.armscontrol.org/documents/mtcr.asp Missile Technology Control Regime]. Accessed [[May 17]], [[2006]].</ref> | GPS allows accurate targeting of various military weapons including [[cruise missile]]s and [[precision-guided munition]]s. To help prevent GPS guidance from being used in enemy or improvised weaponry, the US Government controls the export of civilian receivers. A US-based manufacturer cannot generally export a receiver unless the receiver contains limits restricting it from functioning when it is simultaneously (1) at an altitude above 18 kilometers (60,000ft) and (2) traveling at over 515 m/s (1,000 knots).<ref>Arms Control Association. [http://www.armscontrol.org/documents/mtcr.asp Missile Technology Control Regime]. Accessed [[May 17]], [[2006]].</ref> | ||
The GPS satellites also carry nuclear detonation detectors, which form a major portion of the | The GPS satellites also carry nuclear detonation detectors, which form a major portion of the United States Nuclear Detonation Detection System.<ref>Sandia National Laboratory's [http://www.sandia.gov/LabNews/LN03-07-03/LA2003/la03/arms_story.htm Nonproliferation programs and arms control technology].</ref> | ||
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