摘要 针对自然地物假目标在激光引偏干扰中的应用需求,提出一种有效引偏空域的计算方法,并给出典型自然地物用作激光假目标的建议。以漫反射假目标为参照物,建立自然地物有效引偏空域的分析模型,基于模型计算了植被类、砂石类、泥土类典型自然地物的有效引偏空域;根据有效引偏空域分布特性,给出如何选择自然地物假目标类型、位置和坡面等应用建议。研究结果表明:砂石类、泥土类和植被类目标的有效引偏空域依次减小,且一般小于制式漫反射板假目标;随着入射激光角度的增大,自然地物假目标的引偏空域会减小,且存在不同程度的镜向偏移量;选择自然地物作为激光假目标时,应优先选择砂石类和泥土类目标,选择相同类型的低处自然地物引偏效果更好,坡面坡度的选择需要保证引偏激光在坡面反射形成的引偏空域涵盖来袭激光威胁范围。 For the application of natural features as false targets in laser decoy jamming,a calculation method for effectual decoy airspace is presented,and the proposal of typical natural features used as false targets was given.An analytic model of effectual decoy airspace is established,in which diffuse reflection false target is used as reference object.The effectual decoy airspace of typical natural features such as vegetation,gravel and soil is calculated based on the proposed model.Some suggestions on how to select the type,location and slope of natural features used as false targets are presented according to the distribution of effectual decoy airspace.The results show that the effectual decoy airspaces of gravel,soil and vegetation targets decrease in turn and are generally smaller than that of standard diffuse reflector.With the growth of laser beam incident angle,the effectual decoy airspace of natural features used as false targets decreases,and there is different degree of mirror shifting.When the natural features are selected as laser false targets,the gravel and soil targets should be preferentially selected,and the same type of natural features at lower altitudes provide better decoy effect.In addition,the selection of slope gradient should ensure that the cheating airspace formed by laser decoy on the slope covers the range of laser threat.
机构地区 海军工程大学兵器工程学院 武汉东湖学院机电工程学院
出处 《兵工学报》 EI CAS CSCD 北大核心 2021年第3期581-587,共7页 Acta Armamentarii
