Weapons system portfolio selection based on the contribution rate evaluation of system of systems

The weapons system portfolio selection problem arises at the equipment demonstration stage and deals with the military application requirements.Further,the contribution rate of the system is one of the important indicators to evaluate the role of a system,which can facilitate the weapons system portfolio selection.Therefore,combining the system contribution rate with system portfolio selection is the focus of this study.It also focuses on calculating the contribution rates of multiple equipment systems with various types of capabilities.The contribution rate is measured by establishing a hierarchical multi-criteria value model from three dimensions.Based on the value model,the feasible portfolios are developed under certain cost constraints and the optimal weapons system portfolios are obtained by using the classification optimization selection strategy.Finally,an illustrative example is presented to verify the feasibility of the proposed model.

Visualization analysis of the capability of weapon system of systems for multi-dimensional indicators

In the field of weapon system of systems (WSOS) simulation, various indicators are widely used to describe the capability of WSOS, but it is always difficult to describe the comprehensive capability of WSOS quickly and intuitively by visualization of multi-dimensional indicators. A method of machine learning and visualization is proposed, which can display and analyze the capabilities of different WSOS in a two-dimensional plane. The analysis and comparison of the comprehensive capability of different components of WSOS is realized by the method, which consists of six parts: multiple simulations, key indicators mining, three spatial distance calculation, fusion project calculation, calculation of individual capability density, and calculation of multiple capability ranges overlay. Binding a simulation experiment, the collaborative analysis of six indicators and 100 possible kinds of red WSOS are achieved. The experimental results show that this method can effectively improve the quality and speed of capabilities analysis, reveal a large number of potential information, and provide a visual support for the qualitative and quantitative analysis model.

Resilience approach for heterogeneous distributed networked unmanned weapon systems

Disconnection in the distributed heterogeneous networked unmanned weapon systems is caused by multiple weapon units＇ failure. The technical routes were analyzed to achieve resilience in the disconnection situation. A heterogeneous distributed network model of networked unmanned weapon systems was established. And an approach of adding relay weapon units was proposed to a- chieve fault tolerance after weapon units＇ failure due to attack or energy exhaustion. An improved ge- netic algorithm was proposed to determine and optimize the position of the relay weapon units. Simulation results in the MATLAB show that the improved resilience-based genetic algorithm can restore the network connection maximally when the number of relay units is limited, the network can keep on working after failure, and the implementation cost is controlled in a reasonable range.

Test of Generating Function and Estimation of Equivalent Radius in Some Weapon Systems and Its Stochastic Simulation

We discuss three-dimensional uniform distribution and its property in a sphere;give a method of assessing the tactical and technical indices of cartridge ejection uniformity in some type of weapon systems. Meanwhile we obtain the test of generating function and the estimation of equivalent radius. The uniformity of distribution is tested and verified with ω2 test method on the basis of stochastic simulation example.

The Challenges Posed by Autonomous Weapon Systems to Human Rights and Humanitarian Concerns and Relevant Legal Responses

By 2050,autonomous weapon systems may potentially replace humans as the main force on the battlefield,as per predictions.The development of autonomous weapon systems poses risks to human rights and humanitarian concerns and raises questions about how international law should regulate new technologies.From the perspectives of international human rights law and international humanitarian law,autonomous weapon systems present serious challenges in terms of invasiveness,indiscriminate killing,cruelty,and loss of control,which impact human rights and humanitarian principles.Against the backdrop of increased attention to the protection of human rights in China,it is necessary to clarify the existing regulatory framework and fundamental stance regarding autonomous weapon systems and proactively consider and propose countermeasures to address the risks associated with such systems.This will help prevent human rights and humanitarian violations and advance the timely resolution of this issue,which affects the future and destiny of humanity,ultimately achieving the noble goal of universal enjoyment of human rights.

Weapons equipment portfolios selection based on equipment system contribution rates

Equipment selection is an essential work in the research and development planning of equipment.The scientific and rational development of weapons equipment portfolios is of considerable significance to the optimization of equipment architecture design,the adequate resources allocation,and the joint combat performance.From the system view,this paper proposes a method of weapons equipment portfolios selection(WEPS)based on the contribution rate of weapon systems,providing a new idea for weapon equipment portfolio selection.Firstly,we analyze the WEPS problem and the concept of the contribution rate under the systems background.Secondly,we propose a combat network modeling method for weapon equipment systems based on the function chain.Thirdly,we propose a WEPS method based on the contribution rate,fully considering the correlation relationships between potential weapons and the old weapon systems by the combat network model,under the limitation of capability demands and budget resources,with the objective to maximally increasing the combat ability of weapon systems.Finally,we make a case study with a specific WEPS problem where the whole calculation processes and results are analyzed and exhibited to verify the feasibility and effectiveness of the proposed method model.

Response surface method using grey relational analysis for decision making in weapon system selection

A proper weapon system is very important for a na- tional defense system. Generally, it means selecting the optimal weapon system among many alternatives, which is a multiple- attribute decision making （MADM） problem. This paper proposes a new mathematical model based on the response surface method （RSM） and the grey relational analysis （GRA）. RSM is used to obtain the experimental points and analyze the factors that have a significant impact on the selection results. GRA is used to an- alyze the trend relationship between alternatives and reference series. And then an RSM model is obtained, which can be used to calculate all alternatives and obtain ranking results. A real world application is introduced to illustrate the utilization of the model for the weapon selection problem. The results show that this model can be used to help decision-makers to make a quick comparison of alternatives and select a proper weapon system from multiple alternatives, which is an effective and adaptable method for solving the weapon system selection problem.

A branch and price algorithm for the robust WSOS scheduling problem

To analyze and optimize the weapon system of systems(WSOS)scheduling process,a new method based on robust capabilities for WSOS scheduling optimization is proposed.First,we present an activity network to represent the military mission.The member systems need to be reasonably assigned to perform different activities in the mission.Then we express the problem as a set partitioning formulation with novel columns(activity flows).A heuristic branch-and-price algorithm is designed based on the model of the WSOS scheduling problem(WSOSSP).The algorithm uses the shortest resource-constrained path planning to generate robust activity flows that meet the capability requirements.Finally,we discuss this method in several test cases.The results show that the solution can reduce the makespan of the mission remarkably.

Research on Top-layer Planning and Overall Design Project Decision of Weapon System Based on Analytic Hierarchy Process

Based on analytic hierarchy process(AHP) theory,a vital important problem for top-layer planning and overall design of modern self-propelled gun-howitzer system,namely overall project decision-making,was analyzed.A hierarchy model was built to solve the complex and uncertain problem,and a decision-making index system was established.Then,the weights in all layers of the model were determined by simulating experts.Finally,according to the calculated results of the elements in each layer,the weights of the alternatives to the overall goal were calculated to conduct the hierarchy total decision.A decision example shows that the overall project of a self-propelled gun-howitzer A is much better than that of another self-propelled gun-howitzer B,digitalized in comprehensive efficiency,operability,system accuracy and economy,but inferior to it in the information capability,and there exists relatively larger gap between them in the information sharing index.

Adaptive Signal Conditioning Technology in Fighter Weapon System Test

In order to realize the real-time and precise test for a weapon system of a certain type of fighter,a signal classification method according to attributes is proposed,common input channels for multiple signals are configured optimally,and a test adapter and an adaptive signal conditioning module is designed. The hardware of conditioning module can be configured flexibly and the programmable test range can be adjusted owing to programmable multiplexer. An FPGA adaptive filter is designed by the calculated filter coefficient vectors with LMS method to solve the problem of parallel test of fighter weapon system in electromagnetic interference environment. The adaptive signal conditioning technology is characterized by high efficiency,precision and integration. Its application makes the test system successful to conduct real-time and parallel test for a weapon system,which is developed based on VXI bus and virtual-instrument technology.

Analysis of Design Approach for Navy Weapon System Operation Environment

This study is a preparation phase for visualization of utilized information using ergonomic user interface and standardization of elements for anti-air weapon system. Therefore, we investigated the instances of Navy Weapon System operation environment for defense advanced country. Based on the collected data, we compared and analyzed the weapon system operation environment design. Ultimately, it is essential to share a variety of battle field conditions such as enemy threat, enemy/friendly information, terrain information that can be effectively recognized. In this paper, we conduct case study for ergonomically development of Operation Environment. It is expected that this research improves the situational awareness and reduces the operator’s task load.

基于RBF神经网络的防空导弹武器系统作战效能评估

针对防空导弹武器系统作战效能指标维度高、复杂性强以及评估方法主观等问题,提出基于RBF神经网络的作战效能评估方法。通过分析OODA环作战理论,构建了防空导弹武器系统作战效能指标体系。通过MATLAB实现RBF神经网络模型仿真,并应用BP、PCA-BP、Elman神经网络等多种方法进行对比仿真验证。仿真结果表明:RBF神经网络模型预测评估结果与真实值更为接近,充分证明了该模型在防空导弹武器系统作战效能评估中的有效性,为指挥员作战决策提供有力支持。

Model architecture-oriented combat system effectiveness simulation based on MDE

Combat system effectiveness simulation (CSES) is a special type of complex system simulation. Three non-functional requirements (NFRs), i.e. model composability, domain specific modeling, and model evolvability, are gaining higher priority from CSES users when evaluating different modeling methodologies for CSES. Traditional CSES modeling methodologies are either domain-neutral (lack of domain characteristics consideration and limited support for model composability) or domain-oriented (lack of openness and evolvability) and fall short of the three NFRs. Inspired by the concept of architecture in systems engineering and software engineering fields, we extend it into a concept of model architecture for complex simulation systems, and propose a model architecture-oriented modeling methodology in which the model architecture plays a central role in achieving the three NFRs. Various model-driven engineering (MDE) approaches and technologies, including simulation modeling platform (SMP), unified modeling language (UML), domain specific modeling (DSM), eclipse modeling framework (EMF), graphical modeling framework (GMF), and so forth, are applied where possible in representing the CSES model architecture and its components' behaviors from physical and cognitive domain aspects. A prototype CSES system, called weapon effectiveness simulation system (WESS), and a non-trivial air-combat simulation example are presented to demonstrate the methodology.

An Evaluation Approach for Operational Effectiveness of Anti-radiation Weapon

With the development of anti-radiation weapons,the effectiveness evaluation of anti-radiation weapons has been turned from the simple accuracy index to the integrated countermeasure capability.The research priority is how to access the combat effectiveness of anti-radiation weapons in a complex countermeasure environment.For the present situation of range test of anti-radiation weapons,a combat effectiveness assessment model based on non-linear index aggregation is proposed for anti-radiation weapons.And the corresponding index system model,index aggregation methods,index marking method and index weight determination are given.Finally,the simulation results verify the efficiency and feasibility of the proposed method.

Measurement and Analysis of Mechanical Admittance of Gun-Shoulder System

Lots of factors have influence on the firing accuracy of automatic weapon. During firing,the movement state of gun-shoulder system can be varied due to the impulsion of powder gases and the impact of moving parts,resulting in a gunpoint being deviated from initial value to decrease the firing accuracy of weapon. The development of intelligent controlling gun carriage for weapon system is necessary for reflect its automatic firing accuracy objectively. An electronic measuring system for measuring the receiving force and movement of gun-shoulder system under initiative state is built based on the characteristics of standing non-rest automatic weapon. The constitutes of measuring system and the correction method of shoulder receiving force are described,and the mechanical admittance function of gun-shoulder system is obtained using electronically measured data,the modal identification of admittance functions of gun-shoulder system is made by adopting the orthogonal component method,and the key difference between the passive state and initiative state of standing non-rest automatic weapon is discussed.

火炮武器系统软件研究现状及发展分析

结合火炮武器系统软件产品要求,分析了火炮武器系统软件在当前信息化、无人化战争形态演变下,软件技术、计算机技术、通信技术、网络技术和人工智能技术等的快速发展和装备软件承制单位能力评价给装备软件带来的历史机遇和挑战。为进一步改进关键复杂火炮武器系统软件开发模式、解决型号软件现有设计模式无法适应需求快速变化的矛盾、改变软件开发能力不足的现状,提出了在火炮武器系统软件研制过程改进中的一些建议,以期对火炮武器系统软件开发具有借鉴意义。

美国定向能机动近程防空计划进展分析

美国定向能机动近程防空(directed energy maneuver-short range air defense,DE M-SHORAD)计划通过击伤、摧毁或压制旋转翼无人机、固定翼无人机以及火箭弹、火炮炮弹、迫击炮弹(rockets,artillery and mortar,RAM)等威胁目标,为机动部队提供伴随防空,对抗新兴威胁,属于美国陆军防空反导现代化的优先项目之一。首先介绍了DE M-SHORAD研制计划;其次详细分析了系统结构,并由系统参数评估了系统的作战性能;最后梳理了系统的研制进展。通过综合分析可知,DE M-SHORAD系统采用最佳组件,通过快速原型方法实现激光武器系统在装甲车上的集成;为降低技术风险,该计划在发展方式上分为两个阶段,首先集成、测试2 kW~5 kW机动实验型高能激光器(mobile experimental high-energy laser,MEHEL),然后再研制50 kW级的多任务高能激光器(multi-mission high-energy laser,MMHEL)。经计算可得:MEHEL和MMHEL对无人机的最大射程分别约为0.77 km、4.8 km。

基于概率神经网络的潜舰武器系统故障诊断

针对传统故障诊断方法检测某型潜舰导弹武器系统故障准确率不高、耗时长的问题,提出基于概率神经网络的智能诊断方法。介绍该网络的典型结构及优势所在,以某型潜舰导弹武器系统为验证对象,选取合适特征向量、归纳合理故障类型、建立相应神经网络,并运用Matlab仿真验证。结果表明在现有数据库中,概率神经网络对该系统的故障诊断正确率为77.8%。这表明基于概率神经网络的故障诊断基本能够区分该系统故障类型,大大减少了部队故障诊断时间和人力投入。

武器站传动系统刚柔耦合发射动力学研究

针对搭载转管机枪的武器站传动系统在不同射频下产生变形问题,对武器站传动系统进行研究。建立搭载转管机枪的武器站模型,将托架等主要结构简化为刚体,传动系统作为柔性体建立刚柔耦合动力学模型,仿真计算武器系统的模态和不同射频下传动系统的变形,并分析在不同射频下传动系统变形对射向散布的影响。结果表明:在低射频下,转管机枪枪管振动变形是影响射向散布的主要因素;在高射频达到4000发/min以上时,传动系统振动变形对射向散布影响逐渐增大,传动系统振动变形在高射频下不可忽略。

防空武器实装对抗试验仿真系统设计

为解决新型防空武器装备试验鉴定过程中存在的威胁场景逼真度低、实弹试验成本高、参试装备规模有限等问题,设计与实现了实装对抗试验仿真系统,用于支撑新型防空武器装备开展实装对抗试验。针对不同型号的防空武器雷达的技术差异,通过采取相应的技术措施,实现了实装雷达同时接收虚实目标信息;采用多次读写卫星绝对授时+网络时间协议(NTP)技术的试验用局域网内时间同步方法,实现大区域范围下的内外场仿真系统时间同步;采用网关技术,通过仿真系统实现了异型异构系统的互联互通。实践表明,实装对抗试验仿真系统运行稳定,可以用于开展实装对抗试验,为检验参试装备在体系对抗场景下的作战效能提供支撑,也可为指挥人员开展战术训练演练提供重要手段。