摘要
在无人机的研究中,威胁建模是无人机航路规划、任务推演的重要前提,定量描述无人机战场威胁大小以及各威胁之间的交互作用是威胁建模的难点问题。为定量描述无人机战场威胁,提出了一种基于人工势场的无人机战场威胁模型,构造了不同威胁源的威胁势函数,并针对多威胁交互问题,定义势场叠加规则,综合计算了多威胁源的威胁势场。最后,考虑无人机隐身、干扰、机动等特性,将其量化为无人机对威胁的衰减指数,进一步验证了无人机在战场中所受威胁的态势。两种不同性能的无人机所受威胁态势的仿真结果表明,改进模型计算简单,能够较好的反映无人机战场中各种威胁的特性,具有实际应用价值。
Threats modeling is an important prerequisite for UAV trajectory planning and task deducting. It is difficult to quantify the UAV battlefield threats, and how describe multi - threats interaction is another problem. Firstly, in order to quantize the UAV battlefield threats, models based on artificial potential field were brought forward, which constructed potential functions for different threats. And then, defining the superposition principle of potential field solved the problem of muhi - threats interaction. Finally, considering UAV characters of stealth, jam and flexibility as attenuation indexes of threats, the threats situation of UAV in the battlefield was better performed . Simulation re- sults for two different UAVs show that the computation is simple and it is able to describe the characters of UAV bat- tlefield threats.
出处
《计算机仿真》
CSCD
北大核心
2014年第2期60-64,共5页
Computer Simulation
基金
国家自然科学基金(61132007)
关键词
无人机
人工势场
威胁建模
UAV
Artificial potential field
Modeling of threats
