| 摘要 |
A system for ascertaining the positional characteristics of a moving object from a given viewing point. In one embodiment, the invention is employed to determine the attitude of a missile subsequent to its being launched from an aircraft. A plurality of specially oriented light-polarizing reflectors are attached to the missile surface, and observed by a viewing camera on the aircraft. A source of plane-polarized light on the aircraft illuminates the reflectors on the missile. The attitude of the latter with respect to this source determines the amount of illumination picked up by the camera from each reflector. Such data is then coordinated to yield the positional information desired. In another embodiment, the invention time-correlates a plurality of viewing cameras by causing a time-coded reflection of light to be visible on the missile regardless of view angle.
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