Seeker head for target tracking missiles
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United States of America Patent
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Jan 30, 2001
Grant Date -
N/A
app pub date -
Nov 20, 1998
filing date -
Dec 19, 1997
priority date (Note) -
In Force
status (Latency Note)
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Abstract
The invention relates to a seeker head for target tracking missiles having an image resolving seeker being gimbal suspended in a seeker gimbal assembly and adapted to be aligned to a target by target deviation signals, and inertial sensors. A virtual inertially stabilized reference coordinate system is adapted to be defined from signals from the image resolving seeker and from the seeker gimbal assembly, said stabilized reference coordinate system having an axis aligned to said target. The stabilized reference coordinate system is adapted to be aligned to predicted target positions in case of deterioration of the tracking function of the seeker to the target in accordance with the line of sight information (e.g. direction, angular rate, angular acceleration) of the reference coordinate system then present. The seeker is adapted to be aligned to the axis of the reference coordinate system when the deterioration ceases, the signals from the seeker taking over the tracking function of the seeker again.
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