Processes and devices to guide and/or steer a projectile
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United States of America Patent
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Mar 10, 2009
Grant Date -
Dec 28, 2006
app pub date -
Jul 12, 2005
filing date -
Jul 12, 2004
priority date (Note) -
Expired
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Abstract
A terminal guidance and/or steering process for a projectile towards a target, process in which the orientation of a velocity vector {right arrow over (Vp)} is determined then a guidance law is applied and finally a steering algorithm enabling the projectile to be reoriented towards its target, process wherein the three components of the terrestrial magnetic field {right arrow over (H)} are measured in a projectile-linked reference marker (Ox.sub.mY.sub.mZ.sub.m) and these measurements are used in the guidance law and/or steering algorithm as a fixed reference marker enabling the orientation at least partially of the projectile-linked reference marker with respect to the terrestrial reference marker (GX.sub.fY.sub.fZ.sub.f).
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