With the application of multi-sensor cross-cue technology in target detection more and more widely,the shortcomings of this technology are gradually exposed.The most prominent problem is that the timeliness and accuracy are not considered in the practical application.In order to solve the above problems,the basic theo-ry of cross prompt technology was introduced first,the sensor network model and distributed management structure based on Agent technology were established,the conditions and types of cross prompt technology were analyzed,and then the network performance evaluation function was given,and finally the multi-sensor cross prompt algorithm based on lightning search was designed.The simulation results showed that the cross-prompt model was suitable for the actual combat environment,and could realize the multi-sensor detection alliance to de-tect and track the target while the target handover.Compared with the game theory algorithm and the human ant colony algorithm,the lightning search algorithm had more accurate solution,faster convergence,and im-proved robustness.
为厘清引信的基本概念与发展历史,探讨引信未来的发展方向,揭示了先进引信的内涵,提出了先进引信必须具备的能力,探讨了先进引信发展中必须解决的问题.根据引信发展的内在规律,建立了支撑引信发展的四梁八柱,为加速发展智能引信打下了坚实基础.在回顾引信从仿苏、跟美到自研的发展历史下,创新性地提出了先进引信未来发展的系列方向,为先进引信设计理论的建立奠定了坚实基础.
针对常用的端射天线较难与平台实现共形设计,而易实现共形设计的微带天线工作带宽窄的问题,提出一种具有端射特性的新型弹载共形宽带微带阵列天线.该天线由一个圆形扇区结构的微带贴片作为激励单元,两个环形扇区贴片作为引向单元组成,兼顾天线外形尺寸和方向图特性,使用两个引向器.实测结果表明,该微带阵列天线能够在 2.15～2.45 GHz实现VSWR＜2(相对带宽为 13.1%),天线增益大于9.2 dBi,辐射效率超过 85.5%,工作频带内保持有较好的端向辐射特性.
针对半穿甲战斗部高速侵彻不同结构形式舰船板架时,弹体侵彻能力和引信加速度响应规律认识不清的问题,采用数值模拟的方法研究弹体侵彻等效钢板、单一加筋板和十字加筋板的力学响应和过载特征,分析不同板架结构的毁伤效果和能量吸收,弹体及引信的剩余速度和过载信号.结果表明,不同结构形式板架破口大小一致,靶板的整体变形很小,加强筋产生较多的结构碎片;加强筋对弹体速度的衰减作用影响较小,但可以吸收比靶板更多的能量;加强筋主要影响弹体过载峰值,T型材面板使得弹体过载信号产生"双峰"形态;加强筋使得引信过载信号更为振荡和粘连.
针对超高速侵彻多层复杂目标时引信过载信号混叠粘连,导致计层识别精度低、自适应差的问题,提出基于多信息融合的超高速侵彻引信层数识别方法.高电导率和磁导率的战斗部在超高速碰撞时会产生显著的电磁效应,利用其侵穿过程产生的感应电场信号扩充样本容量以消除采用单一过载信号带来的随机干扰,并提高目标识别的精准性和适应性.首先对侵穿过程中的力-磁-电多物理场信号进行分析,根据电场信号与过载信号之间的相关性,采用核主成分分析算法实现多源信号的降维融合,然后基于复合信号设计识别策略来实现超高速侵彻多层靶板目标的计层.仿真结果表明,该方法可以有效识别侵穿次数、碰靶时刻且识别相对误差控制在 10%以内,可以提高引信精准自主计层的能力.
