舰载直升机光电系统发展及其关键技术

Status and emphases of development for shipborne helicopter optoelectronic system

综述了国外舰载直升机的发展历程及现状,重点阐述了光电系统在美海军"直升机作战概念"中的战术作用及作战任务。针对美军舰载直升机未来的主战光电系统多光谱目标成像系统,从传感器、视场、图像处理、协同作战等方面分析了舰载直升机光电系统的技术现状与发展趋势,传感器分辨率达到1 280像素×720像素,视场从大于40°覆盖至小于1°;采用共光路及二级稳定,稳定精度小于5μrad;集成图像增强、融合和拼接功能后图像延迟小于1帧;地理定位精度提高至5m(80km目标)。最后探讨了舰载直升机光电系统的发展重点与关键技术。

The development of shipborne helicopter abroad was summarized .The tactics func‐tion and campaign mission of optoelectronic system in the “helicopter campaign concept” of United States navy were discussed in detail .According to multiple spectrum targeting system , w hich will be the main EO system of U .S .shipborne helicopter ,the technologies status and development trend were analyzed according to the sensors ,filed of views ,image processing and cooperative combat .The sensor resolution reached 1 280 pixel × 720 pixel ,the biggest field of view (FOV) was bigger than 40°while the smallest FOV was smaller than 1° .The common path and two‐level stabilization technique were used to improve the stabilization accuracy to less than 5 μrad .Image enhancement ,fusion and mosaic should be provided simultaneously and the image delay was smaller than 1 Hz .The inertial measurement unit (IMU) should be integrated to improve the orientation accuracy to 5 m for the target away from 80 km .The de‐velopment emphases of EO system for shipborne helicopter were also proposed .