基于HLA的鱼雷武器系统分布交互仿真

为避免传统意义上低层次、低效率的重复开发,通过对HIA联邦成员的仿真流程及内部接口关系的研究,构建了基于HLA标准的由鱼雷、发射艇、目标、对抗器材等联邦成员组成的鱼雷作战对抗分布交互仿真系统,给出了仿真系统的网络拓扑结构,完成了联邦成员的功能实现.介绍了水声对抗条件下的基本作战仿真流程,包括初始设定、仿真计算、搜索探测...     

污水井中毒事故的消防救援研究

污水井中毒事故是近年来多发且死亡率较高的一种事故,分析了污水井中毒事故的特点,制定了事故的消防救援方案,并对此类事故处置训练提出建议,对消防部队的救援工作具有指导作用。     

无人机混合PID/H∞鲁棒着陆控制器

无人机在进场着陆过程中模型参数发生摄动,存在低空大气扰动和外界不确定性干扰等因素.基于无人机自动着陆性能要求,内环利用线性矩阵不等式凸优化方法,将鲁棒H∞控制转化为标准H∞控制处理,外环采用PID控制航迹,实现系统着陆轨迹的精确控制,有效抑制风干扰及外界不确定性干扰.所设计的控制律在顺风着陆和逆风着陆下分别进行仿真验证...     

Fuzzy recognition of missile borne multi-line array infrared detection based on size calculating

In order to improve the infrared detection and discrimination ability of the smart munition to the dy-namic armor target under the complex background, the multi-line array infrared detection system is established based on the combination of the single unit infrared detector. The surface dimension features of ground armored targets are identified by size calculating solution algorithm. The signal response value and the value of size calculating are identified by the method of fuzzy recognition to make the fuzzy classification judgment for armored target. According to the characteristics of the target signal, a custom threshold de-noising function is proposed to solve the problem of signal preprocessing. The multi-line array infrared detection can complete the scanning detection in a large area in a short time with the characteristics of smart munition in the steady-state scanning stage. The method solves the disadvan-tages of wide scanning interval and low detection probability of single unit infrared detection. By reducing the scanning interval, the number of random rendezvous in the infrared feature area of the upper surface is increased, the accuracy of the size calculating is guaranteed. The experiments results show that in the fuzzy recognition method, the size calculating is introduced as the feature operator, which can improve the recognition ability of the ground armor target with different shape size.     

Study on energy release characteristics of reactive material casings under explosive loading

Reactive Materials (RMs), a new material with structural and energy release characteristics under shock-induced chemical reactions, are promising in extensive applications in national defense and military fields. They can increase the lethality of warheads due to their dual functionality. This paper focuses on the energy release characteristics of RM casings prepared by alloy melting and casting process under explosive loading. Explosion experiments of RM and conventional 2A12 aluminum alloy casings were conducted in free field to capture the explosive fireballs, temperature distribution, peak overpressure of the air shock wave and the fracture morphology of fragments of reactive material (RM) warhead casings by using high-speed camera, infrared thermal imager temperature and peak overpressure testing and scanning electron microscope. Results showed that an increase of both the fireball temperature and air shock wave were observed in all RM casings compared to conventional 2A12 aluminum ally casings. The RM casings can improve the peak overpressure of the air shock wave under explosion loading, though the results are different with different charge ratios. According to the energy release characteristics of the RM, increasing the thickness of RM casings will increase the peak overpressure of the near-field air shock wave, while reducing the thickness will increase the peak overpressure of the far-field air shock wave.     

【邀请论文】特朗普政府太空防卫战略调整的动因、特点与影响

面对太空领域变化的安全环境和自身实力的相对衰弱,特朗普政府对美国的太空防卫战略进行了重大调整。相比奥巴马政府的太空防卫战略,特朗普政府明确将太空作为新型作战域,加快天军建设,并以中俄为主要对手,联合盟友构建军民一体、内外联动的太空防卫体系。本文认为,特朗普政府对于太空防卫战略的调整凸显了美国欲加快太空武器化、谋求外空绝对军事力量优势的霸权企图。但这无疑会加剧目前愈演愈烈的太空“安全困境”,将更多国家拉入“太空军备竞赛”的恶性循环中,对国际太空安全和全球战略稳定带来消极影响。展望拜登政府的太空防卫政策,其军事色彩会略微下降,但也将更重视技术积累和太空的开发利用。     

舰炮武器系统的总体配置方案及关键技术

针对舰炮武器系统在对岸射击中的不足之处,分析了舰炮武器系统对岸射击时对导航系统的需求,对基于导航定位系统的舰炮武器系统的总体配置设计方案和关键技术进行了探讨;给出了系统整体构架及系统工作原理,指出了关键技术如何实现。为舰炮武器系统的设计及提高舰炮武器系统的作战效能提供了理论参考。     

一种基于神经网络的变换域数字水印提取算法

从理论上分析了变换域数字水印嵌入和提取过程,研究了图像处理和攻击对水印产生破坏的机理,并在此基础上提出了一种基于神经网络的变换域数字水印提取算法。实验证明,该算法对各种常见攻击具有较强的鲁棒性。     

编辑与选题策划

选题策划作为出版工作的基础,对编辑素质和编辑工作,包括专业知识造诣、准确的市场定位、计算机运用、成本核算、市场策划在内的整个出版过程的策划等多方面的能力素质都有很高的要求。一名出色的编辑应该在进行选题策划时科学地把握相关的原则和要求,不断提高自身素质,不断为选题策划引入新思想、新方法。     

车牌定位算法在边防出入境车辆管理中的应用

基于图像差分析和投影分布特征的车牌自动定位算法,在充分考虑了汽车原始灰度图像和车牌结构特点的基础上,通过图像差分、二值化、分别向垂直和水平方向投影等步骤,最终实现对车牌的自动定位和分割.整个算法使用Matlab软件进行了仿真,仿真的结果表明该算法具有快速准确的优点.通过大量的试验证明,该算法在实践中是有效的,对于实现边防出入境车辆的自动化管理有着重要的应用价值.