Missile guidance

摘要

Missile guidance involving projection of laser light to define a Laser Information Field (LIF) is augmented by interposition of information pulses, interleaved between laser emissions establishing the LIF. Information pulses encode further information for receipt by a missile, such as an angle of roll of a missile launch platform from which the LIF is emitted.

主权项

1. A missile guidance apparatus comprising:
laser beam projection means operable to project a laser beam comprising a scanned projection of laser beam pulses, the laser beam pulses comprising, in use
first laser beam pulses scanned in a first direction, substantially orthogonal to a beam projection direction, tracing grid lines in said first direction, andsecond laser beam pulses scanned in a second direction, substantially orthogonal to the first direction and to the beam projection direction, tracing grid lines in said second direction; and means for imposing information describing roll of a missile launch platform on the laser beam, wherein the laser beam projection means is further operable to selectively project third laser beam pulses, at positions in time interposed between said first laser beam pulses and said second laser beam pulses, so that said third laser beam pulses do not interfere with said first and second laser beam pulses, said third laser beam pulses encoding said information for use by a missile projected from said missile launch platform, said missile being capable of receiving said third laser beam pulses.