초록 ▼

A two-color infrared warning device, having both wide-angle and narrow-angle search capabilities, and a directional countermeasure device are mounted on a gimbal pointing in the same direction. The warning device and gimbal are initially operated in a wide-angle, step-stare mode to search for threat

A two-color infrared warning device, having both wide-angle and narrow-angle search capabilities, and a directional countermeasure device are mounted on a gimbal pointing in the same direction. The warning device and gimbal are initially operated in a wide-angle, step-stare mode to search for threats. When a potential hostile target is found, the warning device changes to a narrow-angle mode to determine whether the potential target is hostile. When a hostile target is identified, the directional countermeasure device, which is pointed at the target by virtue of its mounting with the warning device on the gimbal, is activated.

대표청구항 ▼

1. An aircraft self-protection system, comprising:a gimbal platform; a gimbal-platform servo controller that receives an input signal from the gimbal platform and provides a stabilization command to the gimbal platform; a lens/detector unit mounted on the gimbal platform, the lens/detector unit incl

1. An aircraft self-protection system, comprising:a gimbal platform; a gimbal-platform servo controller that receives an input signal from the gimbal platform and provides a stabilization command to the gimbal platform; a lens/detector unit mounted on the gimbal platform, the lens/detector unit including a two-color infrared detector having an output signal, a wide-angle lens system having a scene energy input from a pointing direction and a wide-angle-lens output beam focused onto the two-color infrared detector, a narrow-angle lens system having the scene energy input from the pointing direction and a narrow-angle-lens output beam focused onto the two-color infrared detector, a controllable optical switch having as inputs the wide-angle-lens output beam and the narrow-angle-lens output beam, and an optical switch output beam, and a beam splitter that splits the optical switch output beam into a first-color beam that falls onto a first-color region of the two-color infrared detector and a second-color beam that falls onto a second-color region of the two-color infrared detector; a directional countermeasure device mounted on the gimbal platform and aimed in the pointing direction; and an electronics unit mounted off the gimbal platform, the electronics unit receiving the output signal of the two-color infrared detector, analyzing the output signal, and providing command signals to the gimbal-platform servo controller and to the optical switch.