基于综合视景的直升机近地引导技术

Method of Helicopter Ground Proximity Guidance Based on Combined Vision

为提高直升机在恶劣视觉和复杂环境下对危险目标和障碍的有效规避能力,提出一种基于综合视景的近地引导技术。该技术通过对地形数据库和多源航电数据进行综合处理,驱动综合视景仿真,在近地阶段提供有效的危险地形及障碍告警显示和飞行引导信息提示。试验结果表明,所提技术能够直观展示前向综合态势,为飞行员提供直观的环境威胁感知和安全引导信息,大幅降低飞行操作负荷。

In order to improve the avoidance ability of helicopter to dangerous targets and obstacles in poor vision and complex environment,a helicopter ground proximity guidance method based on combined vision model was proposed.For the purpose of providing effective warning display of dangerous terrain and obstacles and information of flight guidance in the phase of ground proximity,the simulation of combined vision was driven by the proposed method with a comprehensive processing of topographic database and avionics data.The experiment results show that the proposed method can visually display the forward comprehensive situation and provide environment threat perception and safety guidance instruction for pilots,which can reduce the load of flight operation significantly.