초록 ▼

An above-the-water system for and method of finding targets, both animate and inanimate, in a marine environment, especially by determining the distance and depth of targets at, above or below the surface of, the water. An optical transmitter transmits infrared and ultraviolet light beams toward dif

An above-the-water system for and method of finding targets, both animate and inanimate, in a marine environment, especially by determining the distance and depth of targets at, above or below the surface of, the water. An optical transmitter transmits infrared and ultraviolet light beams toward different zones of coverage on the water. An optical receiver equipped with a segmented detector separately detects return target reflections. An indicator, including range and depth indicators, provides information as to the distance to the target and, if it is below the water, its depth.

대표청구항 ▼

1. A system for searching for targets in a marine environment, comprising:a) an abovewater-mounted transmitter means for emitting and directing, at a first zone of water, a first beam of optical radiation having a first wavelength characteristic enabling the first beam to refract through the first z

1. A system for searching for targets in a marine environment, comprising:a) an abovewater-mounted transmitter means for emitting and directing, at a first zone of water, a first beam of optical radiation having a first wavelength characteristic enabling the first beam to refract through the first zone as a refracted beam, and for emitting and directing, at a second zone of water different in location than, and spaced apart from, the first zone, a second beam of optical radiation having a second wavelength characteristic different from the first wavelength characteristic and enabling the second beam to reflect from the second zone as a reflected beam; b) a processor for identifying locations of the targets in the marine environment, including a receiver means for separately detecting return target reflections reflected off any targets impinged by the refracted and the reflected beams to find an identified target; and c) an indicator responsive to the processor, for indicating the identified target.