针对定向通信类目标的无人机搜索策略研究

Research of UAV Searching Strategy for the Oriented Communication Target

关键词:  目标搜索策略  无人机  虚拟目标  搜索制导律

Key words:  Searching strategy  UAV  Virtual target  Searching guidance law

摘要:

目标搜索策略的研究可分为两大类：一类是航路规划层面的航路搜索策略；另一类是导引头层面的导引头搜索策略。在航路规划层面进行定向通信类目标的搜索策略研究，提出了改进的螺旋搜索航路。与目前大多数文献不同的是，在搜索航路规划时考虑了通信类目标的特点，并且在搜索航路规划的基础上，基于虚拟目标理论进一步完成了搜索制导律的设计，以使无人机按照设计的航路飞行，并在航路存在误差时保证导引头指向理论轨迹上的虚拟目标，从而提高目标截获概率。最后基于质点模型验证了搜索制导律的可行性，表明提出的搜索航路及制导律具有一定的理论价值与工程参考价值。

Abstract:

The study of searching target strategy can be divided into two main directions：the first one is the aero-path searching strategy in planning path study and the other is the seekers searching strategy in the ways of seeker.This paper is studying the searching strategy of the oriented communication target in aero-path planning research，and giving a improved spiral searching method.Differently，we consider the characteristic of communication target when planed searching aero-path.And based on the planning of searching path，we design a searching guidance law which based on the theory of virtual target.That makes the UAV flying in designing path，and make sure the seeker is oriented to the virtual target in theory when it has errors.This makes the UAV has higher probability to catch the target.Finally，we verify the searching guidance law which based on the mass point.And the guidance law and searching aero-path theory has theorys value and engineering value too.