Data fusion control and guidance of surface-to-air missile under the complex circumstance based on neural-net technology

Under the complicated electromagnetism circumstance, the model of data fusion control and guidance of surface-to-air missile weapon systems is established. Such ways and theories as Elman-NN, radar tracking and filter＇s data fusion net based on the group method for data-processing （GMRDF） are applied to constructing the model of data fusion. The highly reliable state estimation of the tracking targets and the improvement in accuracy of control and guidance are obtained. The purpose is optimization design of data fusion control and guidance of surface-to-air missile weapon systems and improving the fighting effectiveness of surface-to-air missile weapon systems.

Study on Anti-ship Missile Saturation Attack Model

Based on the analysis for the interception process of ship-to-air missile system to the anti-ship missile stream, the antagonism of ship-to-air missile and anti-ship missile stream was modeled by Monte Carlo method. This model containing the probability of acquiring anti-ship missile, threat estimation, firepower distribution, interception, effectiveness evaluation and firepower turning, can dynamically simulate the antagonism process of anti-ship missile attack stream and anti-air missile weapon system. The anti-ship missile's saturation attack stream for different ship-to-air missile systems can be calculated quantitatively. The simulated results reveal the relations among the anti-ship missile saturation attack and the attack intensity of anti-ship missile, interception mode and the main parameters of anti-air missile weapon system. It provides a theoretical basis for the effective operation of anti-ship missile.

Air and Missile Defense Under Spatial Grasp Technology

A novel control ideology and technology for solving tasks in large distributed networked systems will be briefed. Based on active scenarios self-navigating and self-matching distributed spaces in a highly organized super-virus mode, it can effectively establish global control over large systems of any natures. The technology can use numerous scattered and dissimilar facilities in an integral and holistic way, allowing them to work together in goal-driven supercomputer mode. The approach can be useful for advanced air and missile defense in a variety of ways which is described and explained in this paper.

基于“船载舱养”模式国内养殖工船的大气和水污染排放控制研究

基于“船载舱养”的养殖工船模式构建理念,结合10万吨级大型养殖工船建造项目,阐述目前法规、国标对养殖工船防止大气污染和防止水污染的控制措施,并对养殖工船设计、建造和营运给出建议。

基于大指令变化率下的防空导弹姿态控制方法

针对防空导弹的目标机动性较强带来的姿态控制品质变差的问题,提出一种事件触发控制方法。首先分析了由于目标机动性过强导致的指令变化率未知,以及指令变化率过大导致稳态误差较大的原因。针对此问题引入非线性最速跟踪微分器获取指令变化率,研究指令变化率与姿态角误差之间关系,定义稳态效应指标,并在该指标基础上设计了基于事件触发的新增控制量。采用滑模控制和扰动观测器使系统在指令变化率较大条件下的稳态误差被抑制在5%误差带之内。在工程实践的背景下,数值仿真考虑了气动参数拉偏以及执行机构限幅,仿真结果验证了设计的控制系统的有效性。

基于复杂网络的防空反导体系拓扑特性

信息技术和军用物联网技术的发展不断推动着作战样式的变革,网络复杂性正逐渐成为研究的重要问题之一。基于复杂网络理论,构建防空反导网络模型,并对网络模型的拓扑特性进行仿真分析。结果表明,防空反导网络模型具有较大的平均集群系数和较小的平均路径长度,符合小世界特性,且网络效能系数与网络模型结构有较大关系。仿真结果对防空反导网络模型的建立并揭示其内部机理具有一定的理论意义。

美国海军一体化防空火控系统发展研究

美国海军一体化防空火控系统(Naval Integrated Fire Control-Counter Air,NIFC-CA)是一种分布式、网络化的编队防空反导指挥控制系统,其目的是实现超视距远程拦截。随着美军“分布式杀伤”作战思想的不断深入,NIFC-CA能力建设也随之不断完善发展。本文首先对NIFC-CA系统的概念、背景及意义进行深入分析;在此基础上,研究美国海军NIFC-CA系统的作战运用样式;最后,从扩展性、全域性、感知性3个方面,对我军一体化防空提出一些发展建议,为我军海上一体化协同防空作战提供借鉴意义。

基于载机视觉信息的改进视线制导律设计

针对无人机机载武器低成本精确打击的需求,提出利用机载光电吊舱获取制导信息、采用视线制导法进行制导律设计的方案。通过分析载机、导弹和目标的运动关系,建立了系统状态空间模型,基于反步法和滑模控制设计了改进视线制导律。对制导律中无法由载机获取的参数进行了讨论,采用跟踪微分器提取视线角并估计视线角速度信息。数值仿真结果表明,在视线角存在噪声且导弹矢径拉偏的情况下,改进视线制导律仍可保证对地面目标的精准打击。与传统视线制导律相比,载机的运动方向不受限制,可在发射导弹后远离目标以免受到威胁,符合现实需求。

海事特色“大气污染控制工程”教学研究

本文围绕海事特色“大气污染控制工程”课程建设,阐明应在教学过程中增加船舶尾气大气污染物组成与危害、大气污染中船舶分担率、船舶尾气净化、船舶大气污染物控制政策与标准、清洁能源燃料船和绿色动力船以及课程思政等教学内容,以增强学生对专业特色的认知,激发学生学习兴趣,有利于培养学生热爱专业、服务行业的远大理想。

基于TOPSIS法的反舰导弹威胁度排序模型

以水面舰艇最常见的空中威胁—反舰导弹为对象,建立了其威胁指标体系及隶属函数,确定了各指标的权重,运用TOPSIS法建立了反舰导弹的威胁度排序模型,并通过实例进行仿真,该方法求得的结果符合一般的战术推理,可为水面舰艇防空作战决策提供参考。

船舶舱室空气污染处理方法研究

船舶在建造过程中使用的非金属材料用量大,气态污染物的散发量相比陆用建筑更多。相比陆用建筑,对空气污染的处理要求更高。针对船舶舱室空气污染,本研究基于污染物散发机理,对源头控制、加速或减缓材料内部污染物释放、舱内空气净化三种空气污染处理方法的适用性进行了分析,为开展空气质量提升工作奠定了理论基础,提供了实施依据。

Indoor air particles in research vessel from Shanghai to Antarctic: Characteristics, influencing factors, and potential controlling pathway

Despite millions of seafarers and passengers staying on ships each year, few studies have been conducted on the indoor air quality inside ship hulls. In this study, we investigated the levels and size distribution of indoor particulate matter during two cruises of the research vessel “Xuelong” from Shanghai to Antarctica. The results showed that the particle size less than 2.5 μm(PM_(2.5)), and particle size less than 10 μm(PM_(10)) concentrations in different rooms of the ship widely varied. We observed high particulate matter(PM) levels in some of the rooms. The mass concentration distribution was dominated by 1–4 μm particles, which may have been caused by the hygroscopic growth of fine particles. The dominant factors influencing PM concentrations were indoor temperature, relative humidity, and human activity. We quantified contributions of these factors to the levels of indoor particles using a generalized additive model. In clean rooms, the levels of indoor particles were controlled by temperature and relative humidity, whereas in polluted rooms, the levels of indoor particles were mainly influenced by temperature and human activity, which implied that controlling temperature and human activity would efficiently reduce the levels of indoor particles.

Fixed-time adaptive model reference sliding mode control for an air-to-ground missile

This paper addresses the fixed-time adaptive model reference sliding mode control for an air-to-ground missile associated with large speed ranges, mismatched disturbances and un-modeled dynamics. Firstly, a sliding mode surface is developed by the tracking error of the state equation and the model reference state equation with respect to the air-to-ground missile. More specifically,a novel fixed-time adaptive reaching law is presented. Subsequently, the mismatched disturbances and the un-modeled dynamics are treated as the model errors of the state equation. These model errors are estimated by means of a fixed-time disturbance observer, and they are also utilized to compensate the proposed controller. Therefore, the fixed-time controller is obtained by an adaptive reaching law and a fixed-time disturbance observer. Closed-loop stability of the proposed controller is established. Finally, simulation results including Monte Carlo simulations, nonlinear six-DegreeOf-Freedom(6-DOF) simulations and different ranges are presented to demonstrate the efficacy of the proposed control scheme.

空空导弹与航空母舰和舰载机适配性研究

航空母舰是空空导弹的贮存转运平台,舰载机是空空导弹的挂飞发射平台,在作战使用过程中三者密切相关、相互影响,因此必须开展空空导弹与航空母舰、舰载机的适配性研究,以保证空空导弹的上舰安全、可靠使用、减少保障流程时间、持续高效火力打击的作战使用需求。本文结合对机弹和舰弹适配性的理解,从作战环境适配性、保障适配性和安全适配性等三个方面梳理了空空导弹上舰面临的影响因素,提出了舰弹适配性设计要求。

编队舰空导弹防空作战目标威胁评估模型

针对舰艇编队舰空导弹防空作战目标威胁程度评估问题,分析舰艇编队舰空导弹防空作战目标威胁程度影响因素,进而在分析单舰舰空导弹防空作战目标威胁程度评估模型基础上,构建了舰艇编队舰空导弹防空作战目标威胁程度评估模型,为舰艇编队舰空导弹防空作战目标威胁程度评估提供模型依据。

舰艇编队舰空导弹防空作战目标分配模型

针对舰艇编队舰空导弹防空作战目标分配问题,分析舰艇编队舰空导弹防空作战目标分配模型假设,构建了舰艇编队舰空导弹防空作战目标分配最优准则,确定了舰艇编队舰空导弹防空作战目标分配约束条件,为舰艇编队舰空导弹防空作战目标分配提供准则与约束条件依据。

舰艇编队舰空导弹连续发射类型优选方法

针对舰艇编队舰空导弹连续发射类型优选问题,分析舰艇编队舰空导弹连续发射类型,构建了基于马尔科夫链的弹耗量评估模型,构建了舰空导弹毁伤目标数期望计算方法,进行了舰空导弹连续发射最优类型选择分析,为舰艇编队舰空导弹连续发射类型优选提供了方法依据。

基于模块化设计的全电子安全控制系统

针对空空导弹电子安全系统各部件功能独立性较弱,维护升级难度较高,程序设计复杂度较高等问题,提出基于模块化设计的全电子安全控制系统。该系统分别从硬件和软件方面对全电子安全系统的模块化设计方法进行分析研究,通过PID算法对电容电压进行闭环控制。最后通过采用Modelsim软件和低能爆炸箔试验分别对电子安全系统进行仿真验证和可行性分析测试。结果表明,该全电子安全控制系统性能可靠,各部件功能独立性增强,程序设计复杂度降低,软硬件可维护性都得到提高,能够满足空空导弹的作战需求。

基于Lanchester方程的编队舰空导弹作战能力评估模型

针对编队舰空导弹作战能力对抗评估问题,在构建舰空导弹初始作战能力指数、双方损耗效率系数、正常发挥因子、指挥自动化系数评估模型基础上,构建了基于Lanchester方程的单舰舰空导弹作战能力评估模型,进而分析编队对抗损耗效率系数及武器分配系数评估模型,构建了基于Lanchester方程的编队舰空导弹协同作战能力评估模型,评定编队舰空导弹作战能力,为编队舰空导弹协同作战能力评估提供模型依据。

防空反导战术级指挥控制目标分配发展研究

目标分配是指挥控制决策阶段的核心。许多学者对目标分配问题进行了大量研究,在目标分配模型和算法方面取得了较大进展,但随着马赛克战、分布式作战、网络中心战等新型作战样式的演变和发展,现代防空作战复杂度空前提升。针对防空反导战术级指挥控制目标分配暴露出不同作战场景适应能力弱、博弈对抗性和鲁棒性不足等问题,通过总结梳理目标分配研究现状,从攻防体系的发展角度深入探讨了目标分配理论研究在防空反导实际应用过程中所面临的挑战,剖析了目前防空反导战术级指挥控制目标分配存在诸多问题的根本原因,并针对不足提出了防空反导目标分配智能化、网络化、实战化的发展需求。