Command filtered integrated estimation guidance and control for strapdown missiles with circular field of view

In this paper,an integrated estimation guidance and control(IEGC)system is designed based on the command filtered backstepping approach for circular field-of-view(FOV)strapdown missiles.The threedimensional integrated estimation guidance and control nonlinear model with limited actuator deflection angle is established considering the seeker's FOV constraint.The boundary time-varying integral barrier Lyapunov function(IBLF)is employed in backstepping design to constrain the body line-of-sight(BLOS)in IEGC system to fit a circular FOV.Then,the nonlinear adaptive controller is designed to estimate the changing aerodynamic parameters.The generalized extended state observer(GESO)is designed to estimate the acceleration of the maneuvering targets and the unmatched time-varying disturbances for improving tracking accuracy.Furthermore,the command filters are used to solve the"differential expansion"problem during the backstepping design.The Lyapunov theory is used to prove the stability of the overall closed-loop IEGC system.Finally,the simulation results validate the integrated system's effectiveness,achieving high accuracy strikes against maneuvering targets.

The Trump Administration＇s Anti-terrorism Policy

Since taking office, the Trump administration's anti-terrorism policy has become increasingly clear. Its anti-terrorism measures and its internal and external anti-terrorism policies have introduced new features that are distinct from those of the Obama administration. These include linking terrorism to Islam, violating traditional political correctness in order to enhance homeland security, sending large-scale troops to the Middle East, and delegating more authority to the US Defense Department and the Armed Forces. Trump's anti-terrorism policies have made obvious progress both at home and abroad. Along with the adjustment of its national security strategy, the status of the anti-terrorism policy in Trump's national security strategy and national defense strategy will decline.However, for the foreseeable future, anti-terrorism will remain an important issue for the Trump Administration, and in some circumstances,the investment for it may increase.

Japan's State Strategy vs. Anti-Terrorism

The September 11 event upset Japan’s diplomatic agenda and ushered in a strategic restructuring with the focus on anti-terrorism and the top priority given to ties with Washington. Its new diplomacy against terror stresses three aspects: policy towards Washington for ensuring strategic center

Key technologies and applications of intelligent dispatching command for high-speed railway in China

Purpose–The intelligent Central Traffic Control(CTC)system plays a vital role in establishing an intelligent high-speed railway(HSR)system.As the core of HSR transportation command,the intelligent CTC system is a new HSR dispatching command system that integrates the widely used CTC in China with the practical service requirements of intelligent dispatching.This paper aims to propose key technologies and applications for intelligent dispatching command in HSR in China.Design/methodology/approach–This paper first briefly introduces the functions and configuration of the intelligent CTC system.Some new servers,terminals and interfaces are introduced,which are plan adjustment server/terminal,interface for automatic train operation(ATO),interface for Dynamic Monitoring System of Train Control Equipment(DMS),interface for Power Supervisory Control and Data Acquisition(PSCADA),interface for Disaster Monitoring,etc.Findings–The key technologies applied in the intelligent CTC system include automatic adjustment of train operation plans,safety control of train routes and commands,traffic information data platform,integrated simulation of traffic dispatching and ATO function.These technologies have been applied in the Beijing-Zhangjiakou HSR,which commenced operations at the end of 2019.Implementing these key intelligent functions has improved the train dispatching command capacity,ensured the safe operation of intelligent HSR,reduced the labor intensity of dispatching operators and enhanced the intelligence level of China’s dispatching system.Originality/value–This paper provides further challenges and research directions for the intelligent dispatching command of HSR.To achieve the objectives,new measures need to be conducted,including the development of advanced technologies for intelligent dispatching command,coping with new requirements with the development of China’s railway signaling system,the integration of traffic dispatching and train control and the application of AI and data-driven modeling and methods.

The Relationship Between Anti-terrorism and Human Rights Protection: Perspective of International Politics

This article briefly outlines how anti-terrorism struggles became linked and their relationship thereafter with human rights issues in international political life. With equal relevance and value to human development, anti-terrorism efforts and human rights protection are themselves not mutually exclusive or contradictory. Their conflict in everyday life has sometimes resulted from the fact that they are both manipulated in the service of certain political ends. What's more, there has never been p erfect human rights protection in the world so far, which often makes human rights problems an easy charge against almost every government. No anti-terrorist activities in either the US or Europe have been really constrained by the idea of human rights no matter how beautiful their rhetoric has been. Now both human rights and anti-terrorism have been made into a tool of diplomacy and international politics. With the war in Afghanistan over, the United States is enhancing its human rights diplomacy together with its anti-terrorism diplomacy. Truly efficient, comprehensive international cooperation on anti-terrorism is still far away.

Anti-terrorism and Human Rights Protection: Africa in Perspective

The relation between Anti-terrorism and human rights Protection is rather complicated. Based on the practices in Africa, this article analyses the conflicts and contradictions between the two. While countering terrorism, governments have to take the duty of human rights protection as well. Rights are of key importance in preventing and countering terrorism. Integrating human rights construction into antiterrorism mechanism is rather helpful in eliminating various moods of dissatisfaction which are easy to breed terrorism.

Could Military Commanders’ Good LeadershipInfluence Subordinates’ Smartphone Overdependence? A Serial Mediation Analysis

Owing to the ubiquitous use of smartphones by soldiers, military researchers have an increasing interest in potentially problematicside effects such as smartphone overdependence. This raises a question regarding the psychological mechanisms underlying thepotentially self-damaging use of smartphones. Here, we address this question by analyzing how heterogeneity in commander’sgood leadership explains subordinate soldiers’ differences in self-control and smartphone use. Specifically, we found thatsubordinate soldiers who thought their commander's leadership was good were self-regulated, less dependent on smartphones,less stressed, and finally had good mental health. This result indicates that commander’s good leadership can be used toestimate whether subordinate soldiers exert control over their impulses and use their smartphones properly. Thus, the currentfindings help to identify external factors that lead to a better understanding of problematic smartphone use and can potentiallyhelp to design appropriate preventive mechanisms or interventions that target commander’s good leadership.

数字孪生永定河建设实践

数字孪生永定河建设是流域治理管理现代化的主要标志。围绕永定河生态修复与治理,构建数字孪生永定河,建设水利感知、数据底板、模型平台、知识平台、业务应用等内容,相关成果应用于永定河全年全线有水的生态水量调度与海河“23·7”流域性特大洪水的防洪调度,取得了初步成效。建议下一步从完善数据底板、完善防洪模型、提升防洪“四预”能力、提升水资源调度“四预”能力等方面加强数字孪生永定河建设,助力流域治理管理现代化。

无人空战指控建模仿真方法研究

针对当前无人空战仿真中,缺乏支持全流程作战指挥控制建模与仿真这一问题,结合当前无人空战仿真系统相关研究,系统梳理和研究指控模型构建方法,通过探索不同仿真层级不同类型的无人机指挥控制建模原理和方法,设计并且构建了一套适合指挥信息系统装备特点的指控模型仿真系统。通过进行符合预设约束的想定设定,对目标作战任务进行了效能评估和对比,可为无人空战相关指挥信息系统装备的论证、评估方式提供理论和现实指导。

风格迁移、指令设计与“世界模拟器”——兼论Sora模型产出艺术杰作的可能

随着生成式人工智能技术在机器监督学习和对抗神经网络的推动下不断升级,程序化算法对当代艺术创作的影响也逐渐加大。回溯人工智能技术在作品生成方面的路径与方法,有助于理解人工智能艺术不同于传统艺术的新特征。通过细审艺术风格迁移的技术迭代现象,可以发现人机交互界面上隐形存在的深层指令设计问题。围绕指令文本做出的无休止调整,在增强艺术创作的游戏化体验时,迎来了动态的涌现现象。作为世界模拟器之一的Sora模型,能够部分地呈现运动中的物理世界,却无法模拟情感动态,艺术杰作难以产出。

4R危机管理理论在120指挥调度管理中的应用研究

“120”指挥调度作为整个院前医疗急救工作的“第一棒”,保障其安全高效运转尤其重要。通过总结淄博市医疗急救指挥中心在“120”指挥调度管理方面运用4R危机管理理论的实践,探讨如何更好地减少“120”指挥调度中危机事件的发生,进行相关制度建设,制定措施高效应对危机事件及事后恢复重建等,从而建立更安全、更高效的“120”指挥调度体系,让市民群众真正体验到高品质的院前急救服务。

相依指挥控制网络耦合策略研究

指挥控制网络的层次关联复杂、通信链路交错等特点,使其表现出明显的多网相依特征。针对现有相依边的研究方法难以有效表达网络的耦合关系,通过研究基于节点介数的相依强度、基于桥接系数的链路均衡性指数,提出基于相依强度与链路均衡性的相依指挥控制网络耦合策略,仿真验证表明该策略提高了网络抗级联失效能力。

C2SIM互操作标准发展关键问题研究

针对联合作战信息交换需求和多军兵种作战数据互联互通问题,采用指挥控制系统与仿真系统之间交互性标准(command and control systems-simulation systems interoperation,C2SIM)标准指导实现指挥控制系统、仿真系统和无人系统之间的高效互操作。概述C2SIM的地位、作用和开发概况;介绍C2SIM逻辑数据模型开发方法;从C2SIM核心本体、领域本体扩展、本体到XML Schema的转换和参考实现等方面,分析C2SIM的关键技术问题;探讨C2SIM标准在北约近年中实兵演习中的应用情况;总结C2SIM的发展和影响,为我军标准化互操作技术的构建提供方法和技术上的启发和借鉴。结果表明,该研究可有效提高军事信息系统的开发能力和质量。

防空反导一体化指挥协同效能评估

针对当前防空反导一体化指挥协同缺乏科学效能评估方法问题,构建了效能评估指标体系,构造了一个差值平方根直觉模糊熵,以此来确定评估指标权重和评估专家权重,运用改进的TOPSIS方法进行效能评估,并通过与传统的模糊综合评价方法对比分析,验证改进评估方法的科学性和可靠性,评估结果可为指战员提供作战辅助决策。

山区应急供水装备路径规划系统设计与应用

灾后救援保障中,应急供水扮演着至关重要的角色.然而,由于山区地形和地貌条件复杂多变,现场指挥调度尤为关键,关系着救援人员能否迅速展开保障装备进行应急供水作业.文中基于多智能体强化学习(multi-agent proximal policy optimization,MAPPO)算法进行了路径规划系统的设计,并进行了试验仿真验证,根据奖励图结果确认该路径规划系统的可行性,并实现系统运行可视化,证明该路径规划系统可以初步满足山区应急供水装备路径规划需求.在此基础上,结合Mask2Former图像分割模型优化山区应急供水装备路径规划系统,将地物信息输出结果和路径规划结果相结合,有效避免了单一路径规划算法在受到环境影响时结果波动较大的问题,提高了路径规划的鲁棒性和可靠性.将该路径规划系统集成至山区应急供水装备指挥平台,以解决山区应急供水路径规划问题,为山区应急供水装备的实际运行提供了有力支持.

跨域杀伤网架构及其技术分析

在全域作战理论推动下,杀伤链正向更加复杂、更加多维的杀伤网发展。从作战概念入手,分析了杀伤网的运行特点,针对全域作战中跨域杀伤网构建问题,提出了体系能力服务平台+作战应用的系统架构,设计了相关智能体的职责分配和信息交互方法;从杀伤网构建和效能优化的角度,提出了基于作战资源可识别、可定义及可组合的能力生成机理,并对作战资源调用的合作博弈机制进行了探讨。最后,从技术实现角度,提出了智能体构建及智能体参数选择的方法,并分析了人工智能技术在跨域杀伤网构建过程中的赋能作用。

两栖登陆垂直投送指挥控制效能评估模型研究

为破解两栖垂直突击上陆指挥控制作战效能评估难题,从分析垂直突击上陆指挥控制的特点入手,在此基础上分四个步骤建立指挥控制效能评估模型。首先,对指挥控制要素进行抽象分类;其次,分析要素之间以及要素内部的影响关系;然后抽取关键环节,形成评估要点;最后,采用定性与定量相结合,仿真试验评估与实兵验证相结合的方法进行评估。该模型可为指挥控制评估提供方法支撑。

神经调节辅助通气治疗新生儿急性呼吸窘迫综合征的临床研究

目的探讨新生儿急性呼吸窘迫综合征(NARDS)实施神经调节辅助通气(NAVA)治疗的临床价值。方法选取2019年10月至2023年10月的江西省儿童医院的60例NARDS患儿作为研究对象,根据随机数字表法将其分为对照组和观察组每组各30例。对照组患儿采用同步间歇指令通气(SIMV)模式,观察组患儿采用NAVA模式,各通气2 h。比较两组患儿的血气指标、呼吸力学参数、吸气触发延迟时间、并发症率。结果治疗后,两组的动脉氧分压(PaO_(2))、二氧化碳分压(PaCO_(2))、血氧饱和度(SaO_(2))、氧合指数(PaO_(2)/FiO_(2))比较,差异无统计学意义(P>0.05);治疗后,观察组吸气峰压(PIP)、自主呼吸频率(RR)、呼吸做功(WOB)低于对照组,差异有统计学意义(P<0.05),两组治疗后平均气道压(MAP)、吸气潮气量(VTi)、吸气分钟通气量(MVi)比较,差异无统计学意义(P>0.05);观察组的吸气触发延迟时间短于对照组,差异有统计学意义(P<0.05);两组并发症总发生率比较,差异无统计学意义(P>0.05)。结论对于新生儿NARDS实施NAVA治疗,能实现显著的疾病治疗效果,与SIMV模式比较,可提高人机协调性,降低呼吸做功,且降低气道峰压水平,较为安全可靠。

面向铁路行车调度员疲劳识别的动作检测

行车指挥调度是铁路运输的核心监控岗位,检测调度员的疲劳动作对保障铁路运营安全具有重要意义。为了能识别铁路行车调度员疲劳动作,降低安全生产风险,提出一种基于双向长短时记忆神经网络和支持向量机的自适应增强算法对调度员疲劳状态下的动作进行识别。首先,通过高分辨率网络(High-Resolution Net, HRNet)人体关键点检测模型,提取多个人体关键点及人体动作行为角度特征与长度比例特征。其次,搭建基于双向长短时记忆神经网络和支持向量机(Bi-directional Long Short-Term Memory-Support Vector Machine, BiLSTM-SVM)的动作识别模型,使用正交试验法对模型参数进行优化,并采用自适应增强算法(Adaboost, Adaptive Boosting)进一步提升疲劳动作识别。最后,基于调度仿真疲劳动作数据,对该模型的有效性进行验证。结果显示,该模型的精确率为0.97、准确率为0.96、召回率为0.96、F1分数为0.96。该模型提高了人体疲劳动作分类的准确率,为调度员疲劳检测提供了判断依据。