中国科技核心期刊
中国指挥与控制学会会刊
军事装备类重点期刊
中国指挥与控制学会会刊
军事装备类重点期刊
中国指挥与控制学会会刊
军事装备类重点期刊
Aiming at the problem of analyzing the influence factors of the threat from UAV swarm to the surface ship, the influence factors are firstly proposed, the simulation process of UAV swarm attacking the surface ship are designed, and the critical mathematical model and prototype simulation system are built. Then, the simulation scenario is designed and the threat factors affecting the results of UAV swarm attacking the surface ship are analyzed through the simulation experiment. The results show that UAV number, UAV speed and the ship’s distance to the nearest landmass are the main influence factors. The conclusion can provide some references for better offensive and defensive methods of UAV swarm.
Aiming at the problems of weak detection ability and limited combat distance in platform-centric anti-submarine warfare, a concept of long-range network-centric anti-submarine warfare mode is proposed. A conceptual model of long-range anti-submarine is established. A conceptual model of long-range anti-submarine warfare process of “detection-communication-decision-communication-action” is proposed. The structure and workflow of the long-range anti-submarine warfare system are designed, and the key technologies of the system are discussed. It can provide a new and technically feasible means for the anti-submarine warfare mode under the condition of network-centric warfare, and has a certain reference value for the research and construction of anti-submarine weapons and equipment.
With the insights into the intrinsic result or effectiveness of the deployment and employment of military force, it is believed the assurance to control certain spatial area within a range of time is one of the most important effect besides the impact on politics, economics and manpower. Hence, a novel concept named spatial-temporal control measures is introduced to evaluate the overall performance of a joint operational force, and the mathematical model is developed and evaluated by simulated experiments. In compare to either qualitative and quantitative analyses on firepower, maneuver, reconnaissance & surveillance, or certain integrated indices, It shows the new measures is more straightforward and convenient to integrating different capacity indices,moreover,is easier to aggregate.
Submarine tactical software needs formation identification ability. It essentially belongs to pattern recognition issue. Artificial intelligence methods’ application has already get qualitative demonstration. This paper quantitatively tests four artificial neural networks. In order to carry out precise tests, the test is setup based on small samples. Those samples are collected by marking 0 and 1. Various samples are tested. Three formations and four formations cases are both tested and compared. In these 4 tests, GRNN network shows good generalization ability and formation identification ability. It works well in small sample formation identification.
Based on the combat style of unmanned surface vehicle(USV) equipped with air defense missiles performing air defense and anti-missile missions and the problem of USV maneuvering under the target of maximizing the probability of intercepting missiles, a model is constructed to calculate the tracking area and the shooting range of the USV. The optimal solution of USV maneuvering under different shortcuts is solved. The USV maneuvering scheme is determined for different situations. The simulation results show that the USV anti-aircraft maneuvering model and maneuvering scheme are reasonable and effective.
Military named entity recognition can provide auxiliary support for intelligence analysis, command and decision-making. It is a key technology to enhance the intelligence of command information systems. Military text is different from the general field. Although it is more standardized, it has certain particularities. such as complex combination, nesting and referencing. In the context of joint operations, the military text of different service branches has their own professional expressions, which poses a challenge to military named entity recognition. Based on BLSTM-CRF models, this paper introduces a self-attention mechanism to enrich the local features of the text. The experimental results show that the method can effectively improve the recognition accuracy of military named entities. On the self-built corpus test set, the F value can reach 92.30%.
The optimization of operational alternatives is the key to improving decision-making and ensuring joint success. However, the complexity and cruelty of modern warfare often make decision-makers face obstacles to choice, making them hesitant on key issues and difficult to give clear decision-making information. The paper provides a convenient information-descripting tool for decision-makers to make effective decisions by modeling the operational alternatives optimization process as a multi-attribute decision-making (MADM) problem with attribute values being hesitant fuzzy element (HFE). On this basis, the paper proposes a fuzzy optimization method based on objective weighting. This method firstly uses the famous TOPSIS algorithm as the basis of the idea to establish a nonlinear programming model for solving the attribute weight vector, and further reformulate it as a convex optimization problem. Secondly, based on the proof that the convex problem has a unique optimal solution, the closed-form solution is also provided. Finally, based on the objective weighting solution, the ranking algorithm of operational alternatives is proposed, and its effectiveness is numerically verified.
The air defense guided projectile has multiple command control modes. For the selection of command control mode, an instruction control mode analysis method based on guidance precision is proposed. Firstly, the classification of the command guidance command control mode is analyzed. Secondly, according to the characteristics of different command control modes, an error analysis model is established, and the influence model of error on guidance precision is established by Monte-Carlo shooting method based on the model of air defense guided projectile. Finally, the applicable conditions of the command control mode are obtained by simulating and analyzing the influence of each error parameter on the guidance precision under different command control modes,which provides a basis for the selection of the air defense guidance projectile command control mode.
A process simulation model based on multi-entity finite state machine for torpedo defense effectiveness calculation of submarine using acoustic reactance equipment and an optimization model of process "simulation+scheme search" defense scheme based on this model are established. In order to reduce the computational complexity of the scheme optimization model, a solution strategy of "eliminating standard immediately, eliminating inferior schemes in time" is designed and implemented, aiming at the optimization model of "minimizing and maximizing the index function in the process" and improving the solution efficiency of the scheme optimization model. A single-threaded and multi-threaded program is compiled to test the solution efficiency. Experiments show that it can effectively improve the solving efficiency.
In distributed networked radar systems, radar sampling asynchronous and systematic errors are two thorny issues affecting track correlation performance, and asynchronous track correlation with systematic errors is more difficult. This paper comprehensively analyzes the influences of target maneuver and the influence of system error on radar detection. The influence of radar sampling asynchronous is described by grey area, and then the grey area is secondarily amplified by analyzing the influence of system error, which avoids the estimation error caused by Aligning to the same moment. The simulation results show that the algorithm has strong applicability in the case of asynchronous track and large radar system error.
Aiming at the problems of insufficient historical data consumption and low prediction accuracy of the new ammunition, a statistical inference method for ammunition consumption based on prior information such as expert experience data and experimental simulation data is proposed. The maximum likelihood estimation is carried out on the overall mean value of ammunition consumption under different damage levels, and a reasonable confidence interval is determined by the interval estimation. We use confidence interval to test the credibility of maximum likelihood estimation. The amount of ammunition consumption under different damage levels is more accurately determined by this method. Through application analysis and comparison verification, it shows that this method is correct and feasible, and can provide ideas for the prediction of new ammunition consumption.
The paper introduces the engineering realization method of the direct hitting mechanics of close-in weapon system. Considering with both the calculation result of the impact point and the vulnerability of missiles, we get the killing mechanics of the system. Also we conclude an simulation assessment method of the hitting and killing probability. From the simulation result of the main parameters in Phalanx system, this method is confirmed to be accurate, feasible and rational.
There are many factors affecting the accuracy of the landing point of low-altitude parachute-free airdrops. This paper mainly studies the impact of the characteristics of airdrop items, including mass characteristics and aerodynamic characteristics. A six-degree-of-freedom motion model is established according to the appropriate scheme of airdrop items; The high-precision landing trajectory of airdrop items is obtained by Runge-Kutta numerical integration; Through airdrop flight simulation,sensitivity analysis method is used to make the characteristics of airdrop items change within a certain error range,the sensitivity of landing point accuracy to the characteristics of airdrop items is determined by the deviation of the landing trajectory. The simulation result shows that the mass and the position of mass center, the drag coefficient and the aerodynamic characteristic area in the quality characteristics of the airdrop have great influence on the accuracy of the landing point.
Firstly, through the analysis of the historical data of the logistic personnel ratio in wartime of Chinese and foreign military forces since the First World War, this paper summarizes the characteristics, laws and trends of the development and change of the logistic personnel ratio in wartime. Then, according to the system analysis framework of “environment-subject-object”, the influencing factors and mechanism of the logistic personnel ratio in wartime are discussed. Finally, by establishing the mathematical analysis model of the logistic personnel ratio in wartime, the reasonable value range of the logistic personnel ratio in wartime of our army is calculated, and the relevant properties of each influencing factor are quantitatively analyzed. This paper intends to make more in-depth and accurate analysis and judgment, lays a theoretical foundation for focusing on winning in the war, accelerates the reshaping of modern logistics, and scientifically determines the logistic personnel ratio in wartime.
Operational effectiveness evaluation plays an important supporting role in the operational use of weapons and equipment. By analyzing the evaluation results, we can find out the weak links that affect and restrict the generation of operational capability of weapons and equipment. The whole process of establishing the operational effectiveness evaluation index system of a bomber is described in detail. Firstly, the construction mode and selection principle of the evaluation index system are defined according to the evaluation needs, the evaluation subjects and the scope; secondly,the operational process and capability of a certain type of bomber are analyzed,and evaluation indexes closely related to operational effectiveness are obtained; thirdly,the index system with hierarchical structure is constructed by conducting functional aggregation and correlation aggregation on evaluation index; finally, the calculation method of the effectiveness of a certain bomber by using the index system is given. By using this index system and calculation method to evaluate operational effectiveness, it can provide useful help for equipment modification and training mode improvement, thus effectively improving the operational capability of a certain type of bomber.
The swarm intelligence UAV system is a conceived combat system composed of conceived weapons and equipment. The main purpose of combat simulation for such system is to demonstrate the operational capability of the system and validate the operational effectiveness. Firstly, we try to identify the key elements for operational capability and important capability indicators for swarm intelligent UAV system. Then, we analyze requirements of the operational capability simulation demonstration and simulation analysis for operational effectiveness verification. Finally, resolution requirements of typical entities for simulation are found out accordingly.
In order to further research influence rules of the deep-sea falling point measurements accuracy of high-speed moving target which changes with base station layout, falling point position, reference base station, etc., the paper establishes a passive location model based on the Taylor-series expansion method under TDOA system, then takes the site error, delay error and acoustic velocity error as the main error sources variable, plugs the normally distributed random numbers into the measurement model by architectural kind of sampling with the Monte Carlo numerical simulation method, and finally reproduces the accuracy characteristics of time delay differential positioning under the condition of the multi-base stations. The analysis results show that the measurement model can reasonably respond to the changes of base station layout, falling point positon, reference base station selection under the influence of composition error sources, the precision of the deep-sea falling point measurement of the high-speed moving target can be estimated with Monte Carlo numerical simulation method effectively, which can provide references for the design of the multi-base stations in passive location and accuracy evaluation.
Hardware-in-the-loop(HIL)simulation test system with a high degree of confidence of simulation, is used for range test evaluation, but the HIL simulation test system exists long construction period, huge costs, for each product expansion construction will produce many software and hardware equipment, cause numerous hardware and software, system maintenance is not easy, serious problems such as "stovepipe" construction, so how to improve the generality of HIL simulation test system software and hardware equipment, improve equipment resources utilization rate, reduce the cost of system construction is the important problem to solve in the development of the HIL simulation test system used in range. Aiming at the problems of many software versions and repetitive construction, this paper puts forward the development and construction ideas of system software component based on a simulation test architecture, in order to solve the problems of " stovepipe " and repetitive construction of the system in software. It improves the utilization of software resources of the HIL simulation test system.
Aiming at the complexity of equipment utilization business process modeling, based on object-oriented modeling theory, the equipment utilization business process is described, and the object-oriented Petri net (OOPN) method is used to construct the object-oriented hierarchical Petri net model of equipment utilization business process. On this basis, the simulation of equipment utilization business process model is carried out using Anylogic simulation platform, and the construction is verified. The effectiveness of the model method provides a new idea for the application of equipment support system modeling and simulation technology.
Aiming at the tracking problem of single underwater high-speed small target by single sonar, according to the fact that there are few data points available for high-speed short-range small target approaching sonar tracking filter, but there are more Doppler velocities. By introducing the Doppler velocities of target into the observation equation of tracking filter, an observation equation is proposed to increase the number of targets. Puller velocity dimension underwater fast tracking method overcomes the shortcomings of traditional underwater target tracking method based only on target distance and direction angle, which is poor in observability and easy to diverge, and achieves high precision underwater target tracking under the condition of a few data points. The feasibility and validity of the method are verified by simulation experiments, and it is used for underwater target tracking in relevant scenes. Marker tracking provides reference.
Unmanned helicopters have nonlinear and strong coupling characteristics. It is difficult for using classical control methods to reach good flight control performance. This paper proposes a fuzzy PID attitude control method based on genetic algorithms which can effectively improve the flying qualities. Firstly, the mathematical model of an unmanned helicopter is established by using momentum theory. Secondly, the fuzzy PID attitude controller is designed based on the established model, and the system performance is analyzed and verified. After that, genetic algorithm is used to optimize the quantizing factors, proportional factors and membership functions of the fuzzy controller, which improves the parameter configuration rationality and the system control precision. Finally, the improved fuzzy PID attitude control method is verified by Matlab/Simulink simulation. The experimental results show that the method is effective in the attitude control performance of the unmanned helicopter and in overcoming the influence of disturbance.
Aiming at the problem that the trusted chain cannot be migrated during migration process of virtual machines between different physical platforms, a trusted migration method based on the trusted chain is proposed. This method adds a vTPM management center on the virtual layer to create and manage multiple vTPMs, builds a complete trusted chain from the hardware TPM to the virtual machine applications through vTPMs. During the VM migration process, we disconnects the complete trusted chain and migrated the VM trusted chain together with the VM to the target platform, and realizes the trusted migration of the VM and rapid recovery of the trusted chain. The method solves the problem well during the cross-physical platform migration process. Comparing with the original VM migration method, this method can ensure the security of the whole migration process, and high confidence and fast recovery characteristics.
Aiming at the problem of multi-fault diagnosis strategy for naval gun guided ammunition, a design method of multi-fault diagnosis strategy for naval gun guided ammunition based on AO* algorithm is presented. This method combines AO* algorithm and Matlab programming, and gets the multi-fault diagnosis strategy for naval gun guided ammunition. Experiments show that AO* algorithm is effective in solving the problem of multi-fault diagnosis strategy for naval gun guided ammunition, the purpose of reducing test cost and improving fault isolation speed is achieved.
Aiming at the problem of low training efficiency, high materical consumption and lack of quantitative assessment means of the optical wind-finding operation mode, an optical wind-finding training system is designed from two aspects:function and structure. Avariety of training environment is constructed by using virutal reality technology and research on balloon motion trajectory mode, visual model and database model. The organic unity of training, assessment and evaluation of the optical wind-finding operation mode is realized by hardware modification design at training terminal and real-time monitoring feedback design at management terminal, which can achieve important pratical significance for improving training quality and training efficiency.
In order to improve training benefits of long-range rocker gun, reduce the equipment wear and extend the life, an operation and maintenance training simulator is designed. The simulator is based on main control system, which includes equipment operation system, virtual equipment system and combined system. Main control system responsible for the whole system work state of coordination and the subsystem monitoring and control, equipment operation system complete the equipment operation training, virtual equipment system complete virtual equipment operation, virtual equipment maintenance and assessment evaluation functions, combined system complete the information transmission and conversion between simulators. The training simulator used to enhance the related professional college education level and unit training are important.
