초록 ▼

An optical identification friend-or-foe (IFF) system for vehicles comprises a Selective Wavelength IFF (SWIFF) system with a tunable optical beacon being located on each similarly equipped vehicle. That tunable optical beacon includes a light source and wavelength encoder which can select a number o

An optical identification friend-or-foe (IFF) system for vehicles comprises a Selective Wavelength IFF (SWIFF) system with a tunable optical beacon being located on each similarly equipped vehicle. That tunable optical beacon includes a light source and wavelength encoder which can select a number of narrow-band optical wavelengths for emission from the beacon, those selected wavelengths forming an identification code for a vehicle. The optical beacon directs the selected wavelengths along an optical path to a diffuser which can irradiate a wide field-of-view around the vehicle with those selected wavelength for detection and identification by other friendly vehicles. The light source may be one that emits a broad range of wavelengths with the encoder providing a number of narrow-band optical filters which can be selectively positioned in the optical path from the light source to the diffuser. Alternatively, the light source and encoder could be a wavelength agile laser source or an array of laser diodes emitting at specific wavelengths and a control unit to select the wavelengths emitted by the laser source or array of diodes. This optical SWIFF system provides a high level of covertness and degree of confidence in the identification of vehicles as being friend-or-foe.

대표청구항 ▼

An optical identification friend-or-foe system for vehicles comprising a selective wavelength tunable optical beacon located on each of the vehicles, wherein the tunable optical beacon for one vehicle includes a light source and wavelength encoder with means to select narrow-band wavelengths from th

An optical identification friend-or-foe system for vehicles comprising a selective wavelength tunable optical beacon located on each of the vehicles, wherein the tunable optical beacon for one vehicle includes a light source and wavelength encoder with means to select narrow-band wavelengths from the light source for emission from the beacon, which selected wavelengths form an identification code for said one vehicle, and means to direct said selected wavelengths from said light source and wavelength encoder to at least one diffuser comprising means to irradiate an area in a wide field-of-view around said one vehicle with those selected wavelengths.