초록 ▼

A computationless system is provided for determining the direction of and distance to a target, involving bathing an area surrounding an area to be protected with a polyspectral series of narrow fan beams of different colors from at least two spaced-apart projectors. The differently colored beams go

A computationless system is provided for determining the direction of and distance to a target, involving bathing an area surrounding an area to be protected with a polyspectral series of narrow fan beams of different colors from at least two spaced-apart projectors. The differently colored beams go out at different angles, thus to color-code map the area surrounding the protected space where beams of different colors cross to form color-coded cells. Light reflected back to the area to be protected from a threat has a color code corresponding to the colors associated with beams that cross at the threat, thus to identify by the reflected colors where in space the threat is located.

대표청구항 ▼

What is claimed is: 1. A method for rapidly ascertaining where in space an incoming threat is located relative to a protected space, comprising the steps of:projecting from two spaced points a multiplicity of narrow angularly displaced differently colored fan beams such that fan beams from the space

What is claimed is: 1. A method for rapidly ascertaining where in space an incoming threat is located relative to a protected space, comprising the steps of:projecting from two spaced points a multiplicity of narrow angularly displaced differently colored fan beams such that fan beams from the spaced points intersect in a surveilled area adjacent the protected space to provide a mosaic of locations, each location having a unique two-color code; and,detecting using a wide field of view detector the location of a threat entering into the surveilled area by ascertaining the colors of the returns from a threat at the intersection of two beams, the identity of the detected colors providing a two color code indicating where in the surveilled area the threat is located.