一种基于地形分析的多目标关联算法

利用低时空分辨率的卫星遥感观测进行目标群关联,由于目标群运动状态转变的规律性不好寻找,目标群的精确属性特征难于获取,增加了利用目标属性进行关联的实现难度.考虑到地形特征对目标群运动影响的特点,提出了基于地形栅格分析的多目标关联算法.     

An infrared target intrusion detection method based on feature fusion and enhancement

Infrared target intrusion detection has significant applications in the fields of military defence and intelligent warning. In view of the characteristics of intrusion targets as well as inspection difficulties, an infrared target intrusion detection algorithm based on feature fusion and enhancement was proposed. This algorithm combines static target mode analysis and dynamic multi-frame correlation detection to extract infrared target features at different levels. Among them, LBP texture analysis can be used to effectively identify the posterior feature patterns which have been contained in the target library, while motion frame difference method can detect the moving regions of the image, improve the integrity of target regions such as camouflage, sheltering and deformation. In order to integrate the advantages of the two methods, the enhanced convolutional neural network was designed and the feature images obtained by the two methods were fused and enhanced. The enhancement module of the network strengthened and screened the targets, and realized the background suppression of infrared images. Based on the experiments, the effect of the proposed method and the comparison method on the background suppression and detection performance was evaluated, and the results showed that the SCRG and BSF values of the method in this paper had a better performance in multiple data sets, and it’s detection performance was far better than the comparison algorithm. The experiment results indicated that, compared with traditional infrared target detection methods, the proposed method could detect the infrared invasion target more accurately, and suppress the background noise more effectively.     

An air cavity method for increasing the underwater acoustic targets strength of corner reflector

In order to improve the underwater acoustic target strength of corner reflectors, according to the principle of acoustic impedance mismatch of the boundary layer, the method of using air cavity to increase the underwater acoustic target strength of corner reflectors is proposed. The acoustic reflection coefficients of underwater air layer and single layer metal sheet are calculated and compared. The results show that the reflection coefficient of single layer metal sheet is greatly affected by frequency and incidence angle, and the reflection coefficient of air layer in water is large and little affected by frequency and incidence angle. On this basis, a new kind of airfilled cavity corner reflector is designed. The acoustic scattering characteristics of underwater airfilled cavity corner reflector are calculated cumulatively, and the results are compared with the monolayer metal sheet corner reflector. The simulation results show that the acoustic reflection effect of the airfilled cavity corner reflector is better. In order to verify the correctness of the method, the test was carried out in the silencing tank. The experimental results show that the simulation results are in good agreement with the experimental results, and the airfilled cavity can improve on acoustic reflection performance of the underwater corner reflector.     

突发事件处置经验对军队战时管理的启示

战时管理是关系作战全局的基础性工作,是保持和释放战斗力的重要举措,是确保军队高度集中统一、能打胜仗的重要支撑。有效提升军队战时管理能力是现代战争中部队管理工作亟待研究的重要课题。本文梳理了近期我国突发事件处置中的经验教训,从战时支前物资管理、战时人力资源管理及战时舆情信息管控三个方面提出：战时支前物资管理应完善机制、改造模式、畅通网络;战时人力资源管理应紧贴任务实际、突出岗才一致、彰显精简程序;战时舆情信息管控应统一机构、正确导向、纯洁队伍、严管舆论等措施,以期给未来战时管理决策提供可选方案,实现管理服务作战,保障打赢之目的。     

舰载直升机在舰艇编队对低空目标预警中的使用研究

结合水面舰艇编队对低空目标预警目前存在的问题 ,指出了使用舰载直升机对低空目标预警的必要性和可行性 ,论述了舰载直升机用于编队低空预警的优点以及配置方法 ,最后指出了舰载直升机用于低空预警时的几点注意事项     

基于多元统计的空中目标区分方法

现代战争中的空情信息复杂多变,如何对空中目标合理地区分,以提取其主要信息,是空情信息处理的一个重要方面。基于多元统计的思想,采用聚类分析和判别分析的方法,对空中目标进行区分、辨别,以此为指挥人员提供作战决策的依据。     

坦克目标威胁程度评估

以军事理论和层次分析法为基础,将一种新的归一化效用函数应用于坦克目标的威胁程序评估,为地面作战自动化指挥提出了一种辅助决策方法。     

高规在执行中面临的新问题及对策

分析目前《高层民用建筑设计防火规范》在执行中面临的新问题 ,并结合工程实例 ,对《高层民用建筑设计防火规范》中相关条款提出看法。     

区域防空作战重点保卫目标的模糊优选与排序

重点保卫目标的优选和排序成为防空作战的重要问题。只有优选重点保卫目标,集中防空兵力,有效地进行防空作战布置,才能确保重点目标不受或少受损失。在分析了影响重点保卫目标因素的基础上,利用多属性决策的特点和模糊原理,对重点保卫目标的优化选择进行了量化分析,给出了重点保卫目标的优选方法和排序准则。     

多部雷达的目标定位问题研究

现代空袭环境越来越复杂,一般部署多部雷达进行空情搜索。研究了多部雷达的目标定位问题,探讨了使残差的平方和为最小、使残差的最大绝对值为最小和使残差的绝对值之和为最小三个准则,并给出了相应的数学模型,用Matlab优化工具箱进行了计算。