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
Reef air defense troops demand with composite groups of three defense tiers is studied. Firstly, the deployment distance model of fire units is established. Based on the model, troops demand model which takes into account the cover width of one defense tier is built. Then, one tier probability model for interception of single and multiple targets is established on the basis of Markov chain. Finally, three composite tiers’ troops demand model is given on previous one tier probability model. One case analysis is presented to demonstrate the use of the models.
Missile defense is of great importance to national security, and the core of missile defense system is operational command. So it is very significant to explore the structure and modeling of missile defensive operational command system. Using the American missile defense command system structure as a example, the paper abstracts the components in the command system of missile defense systems operation into the agent entitles based on MAS. The different agent entity has different microscopic model, it need to follow itself rules of conduct. Then the paper build the mixing MAS structure about the command system of missile defense systems operation according to its internal interaction. The paper provides the method support to quantitative analysis on the command system of missile defense systems operation.
A method based on gray relational decision and combined weight is presented to solve the problem that the gray relational degree is too objectivity and low accuracy to evaluate the performance of anti-submarine patrol aircraft. First, the objective weight based on gray correlation coefficient is obtained by maximum entropy model and obtain the subjective weight by considering the fuzzy hierarchy proposed by experts. The two unite to obtain the combined weight through the combining weighting method based on game theory. Finally, substitute into the decision method based on the gray relational grade to infer the best scheme. Through example calculation, it can divectly and swaiftly response the scheme’s good and bad points by calculating examples, and it also can make final decision.
With respect to the problem of coordinated search of submarine by surface group and fixed-wing ASW aircraft, searching rate has been chosen to be the efficiency index to demonstrate the capability of ASW searching, and the total efficiency of the surface group and fixed-wing ASW aircraft in the scenario of checking-search mode has been calculated. Furthermore, because of the very changeful environment in the shallow waters, three typical hydrological conditions denoted as good, moderate and bad propagation conditions have been used for analysis, and the results show that the capability of ASW searching can be dramatically improved with using of the fixed-wing ASW aircraft, and which is not sensitive to the deteriorate of underwater environment.
From the perspective of operational use, put forward four qualities of sonobuoy airdrop, analyzed five subjective factors and two objective factors which impact sonobuoy airdrop, built the determinative model of sonobuoy airdrop data. Based on the results of simulation, pointed out the determative method of characteristic data for anti-submarine patrol aircraft airdrop sonobuoy which meet the basic requirements on sonobuoy airdrop and method requirements on anti-submarine patrol aircraft using sonobuoy to search submarine.
For navy ships formation cooperative call search problem of moving target, set up and optimize multiple search path planning model, and considering the sonar searching effective width and Angle effect on detecting ability, According to the planning model, we design a genetic algorithm with adaptive population co-evolution, more use of competitive exclusion principle guiding multiple populations, maintain differentiation between the various groups and the overall coordination and orderly, to improve the search efficiency, Through classification and within the population evolution selection, adaptive crossover and targeted mutation improved genetic operation, ensure the spread of dominant genes, and accelerate the convergence speed, dynamically adjust the balance of the global search and local search, avoid evolved into local optimum, Based on the direction of the unknown target motion of collaborative search example simulation, obtained the collaborative search optimal path, compared with conventional call search methods show that the method in terms of global optimization and search efficiency has some advantages, is suitable for solving the formation cooperative call antisubmarine search problem.
The calculation of guiding parameters (calculation of curve turning parameters, calculation of curve turning parameters), guidance process simulation (turning curve simulation, curve turning simulation) of the azimuthal guidance process are carried out respectively, and the difference of probabilities is found and compared. Simulation results show that active acoustic homing and passive acoustic homing torpedoes can simplify the calculation of guiding parameters and guide process simulation by using polyline turning. The trajectory homing torpedo can only use the polyline turning to simplify the calculation of guiding parameters and can not use the polyline Turning to calculate the probability of discovery.
Under the existing technical conditions, optimize the fleet formation to improve the detection performance of the fleet against missiles. To overcome shortcomings of traditional formation evaluation and optimization methods which are difficult to give full consideration to the differences of the detection performance of different ships and to give the relative position coordinates, use detection performance functions from the experimental data and Monte Carlo simulation missiles to establish optimization function. Establish the optimal objective function based on this function and establish the constraint condition according to the actual formation constraints. Then obtain the optimization model of the fleet formation based on the anti-missile detection capability. Using Differential Evolution, optimize this function by constrained search to determine the coordinates of ships. Test results show that the method can effectively improve the detection performance of the fleet, and give a reasonable formation optimization scheme.
Aiming at the shortage of aircraft-fleet force model which considers force as a whole, the operation process and force requirement of aircraft-fleet kill chain are analyzed. Modularized method of description is adopted, and dividing aircraft into seven components, such as platform unit, sensor unit, weapon unit, command and control unit, firing control unit, midcourse guidance unit, communication unit and so on. Description method of multi-component system is given and is used to build models of seven components separately. These models express attribution, working status and performance restraints of each component, which could be used to support aircraft-fleet force management and task planning.
Based on analyzing the factors which influence the operational action combat operational method decision-making,the evaluation index system of combat operational method decision-making is established.Considering the fuzz and incommensurability of combat operational method decision-making index,the comprehensive evaluation of different combat operational method effects is realized by calculating the cloud model representation and cloud barycenter deviation degree of each index. Focused on the passage operational action, whichis carried by an armored brigade seizure and control J village-X mountain pass direction, through applicated on three operational method,the optimal operational method is assigned scientifically and the operational method advices are put forward based on quantitative analysis results,which can provide decision-making support for the operational concept plan formulation of brigade commanders.
To improve the flexibility and adaptability of the anti-air threat assessment, the flow diagram of anti-air threat assessment is established based on Support Vector Machine for Regression (SVR) and Back Propagation Neural Networks (BP). The threat factors of anti-air threat assessment are selected, and the standard on normalization are ascertained. The training steps of the SVR models and BP models are detailed. An example is applied to the two models respectively, and the correctness of the conclusion is validated by Matlab. The advantages and disadvantages of the SVR models and BP models are analyzed, which concludes that the SVR models is more suitable for the anti-air threat assessment at the present stage.
On the basis of analyzing the ballistic trajectory character of boost-glide hypersonic anti-ship missile, some possible penetration strategy is designed. Point-mass equation for missiles is built, and the feasibility of muti-directional penetration of multi-missiles in coordination which launching by single platform is studied, which is based on the optimum guidance law with a terminal angular constraint. Some conclusions are obtained through simulation that the muti-directional penetration of multi-missiles in coordination which launching by single platform is feasible by manually setting virtual targets under the constraints, such as the normal overload,trajectory inclination angle, dynamic pressure.
In the present weapon-target matching research, the matching standard is only the damage capacity of the warhead and weapons’ suitability for the target cannot be quantitatively described. To solve this problem, the analysis of the factors influencing weapon-target matching is carried out, and the concept of matching degree is put forward. In the case of the weapon to fulfil its mandate, the decision maker focused on the time factor and value factor, so the mathematical model is built based on the counter consuming time and value of the weapon. The results of simulated experiment indicate that this model is reliable. It’s meaningful to make full use of weapon efficiency and carry out accurate fire allocation.
Object tracking is an important task within the field of computer vision. This paper introduces the feature points based object tracking. First, we summarize the definition and process and application of object tracking. Second, the classifications and current situation of object tracking are shown. In addition,we give a brief introduction on the typical methods of feature extraction and description. The performance of tracking algorithms is compared in various video sequences on Matlab. Meanwhile, some future directions of visual tracking are addressed shortly.
The tactical necessary condition of identifying certain ship of Formation in Coral Islands or Reefs Area is analyzed, based on the distance & angle resolution of anti-ship missile (ASM) terminal guidance radar (TGR) are limited. According to their relative movements and locations, the location relationship model of missile, target ship and non-target ship are established. And the relationship of distance difference, angle difference between target and non-targets in terminal guidance radar ‘field of view’ and attack orientation of missile and distance to turn on terminal guidance radar is found out. The corresponding simulation is carried out. And it shows that the mathematic model established here can achieve the purpose of setting attack orientation of missile and distance to turn on terminal guidance radar coordinately while radar guided ASM used in in Coral Islands or Reefs Area. So decision basis for operation command is put forward.
Context information can be embedded into battlefield situation-aware interface, which can help judge users’ intention, provide adaptive user interface, recommend interface resources and collaborative mechanism. By this way, the ability of situation perception, understand, prediction can be promoted. Currently the embedding mechanism and processing flow for context information are not yet definitive, which cause obstacles to the utilization of context. This paper firstly proposes 5 merits for future battlefield situation-aware interface, and then analyses 6 type context. At last, a context-aware interface model for battlefield is presented. Research results above indicate direction for design and use of battlefield situation-aware interface.
The problem of dynamic resource assignment for ESJ electronic warfare aircraft has been analyzed in this paper. ESJ mission was decomposed based on the mission profile description, and decision making process was analyzed. An optimal modeling of resource assignment was built according to the accomplishment of jamming dynamic resource assignment policy, BPSO algorithm for dynamic resource assignment was proposed. The simulation results show the availability and robustness of the model. It is valuable for the electronic warfare decision making.
According to the special demand of end defense air defense operations, combined with the guarded defense area, thepaper raises a method of target threat assessment, targeted selection of threat assessment factors, and the defensive area are subjected to threat assessment, and then a comprehensive assessment of the overall, get the comprehensive threat assessment, and through a simulation example to verify the feasibility and effectiveness of the algorithm.
It is an important guarantee to improve the quality and efficiency of the warfighting-oriented training in the forces by using the reasonable method to evaluate the warfighting-oriented training. In this paper, the use of ANP method to evaluate the warfighting-oriented training of forces, because ANP method can express the warfighting-oriented training of the assessment of the relationship between the evaluation, it can be more reasonable to forces warfighting-oriented training assessment of some of the problems. The case study shows that the ANP method can overcome some limitations and shortcomings of the traditional AHP method, and is more practical and effective in complex system decision planning and evaluation analysis. It can be used to forces warfighting-oriented training planning,decision making and organization provision important reference.
According to the characteristics of China’s ground system for remote sensing satellite(GSRSS),under the design method of Department of Defense Architecture Framework(DoDAF),this paper applies the DoDAF ABM method in System Architecture(SA) software to design the architecture model of GSRSS from the four views(All view, Operational view, Systems view and Technical Standards view). Based on the CPN ML and transformation rules, the syntax and logic structure of sub-models are simulated and verified by CPN Tool. The simulation results show that the proposed architecture model is reasonable. This research makes contribution to optimal management and top-level design of ground system for remote sensing satellite.
Based on the campaign mode of laser weapon system, the meaning of this system for improving the naval defense system is analyzed. Combined with atmospheric factors, the damage analysis on different parts of the anti-ship missile is identified under the condition of different tracking & pointing accuracy and power. Through the analysis of the relationship between laser power density and propagation distance,the operation of this system is put forward and the trend of the shipborne laser weapon system is expected.
The relationship between the direction cosine matrix (DCM) in the space field and DCM in the aeronautics field is derived, to meet the demand of hardware-in-the-loop (HWIL) simulation of near space hypersonic vehicle flight control system. Firstly, the coordinate transformation (CT) theory is introduced, and the conversion method between two cartesian coordinate system is Introctuced. As well as the relationship of DCMs between the matrix transformation under two different reference systems is presented. Then, the analyzes the relationship of coordinate frames between the space field and the aeronautics field. How to convert the coordinate frame in the space field to the coordinate frame in the aeronautics field is researched. Finally, the HWIL simulation indicates that the method is correct and feasible. It ensures the HWIL simulation of navigation system of near space hypersonic vehicle.
In order to improve the integrated navigation performance of the civil plane and ensure the safety of the RNP operation, an onboard integrated navigation system and performance evaluation method based on DR/GPS/VOR/DME is proposed. Considering multi-sensor error,the system error model is established. The measurement model of system is designed based on residual error χ2 detection method. The square-root filter based on sequential processing is used to implement position optimization estimation. Simulation result indicates that the integrated navigation can estimate the position accurately. The ANP algorithm can estimate the real-time error characteristics of integrated navigation system during the 95% time and have high assessment precision, which can satisfy the requirement of RNP.
In order to improve the efficiency of transferring carrier-borne aircrafts on the flight deck, the logistics center location method is introduced to solve the path planning problem of carrier-borne aircrafts. Aimed at the complexity of the flight deck environment and the problem of the shapes of carrier-borne aircrafts can’t be ignored, the Nimitz class aircraft carrier is taken as the research object, firstly the flight deck and carrier-borne aircrafts are modeled geometrically, then using the logistics center location method, a number of candidate transportation nodes are set up on the flight deck through a certain evaluation mechanism, and the immune algorithm is used to optimally select the candidate transportation nodes and then the transportation path network is determined, finally the multiple aircrafts transportation timing is controlled by state transition diagram. The simulation result of six aircrafts dispatching operation show that the proposed method is simple and reasonable, and can provide decision-making reference for carrier-borne aircrafts transportation management staff.
Refereeing to the article Maintainability Test and Evaluation coded GJB2072-1994, and based on the requirements of quantitative index for testability and maintainability of anti submarine weapon system, this paper validates the index by combining natural faults and simulation faults and gives a way to confirm the test sample size and judge whether the index’s calculation is up to standard by means of mathematical statistics. Finally, an application case shows the feasibility of the method and provides direct guidance for the test of subsequent models.
Recently the army has accumulated massive operational data, equipment performance, naval battlefield environment etc. These huge data is with various formats, and stored in different types of database. How to retrieve the target information from these data rapidly and exactly is a very important work. Lucene is a Java-based open source library of full text search, and can be easily used to customize a search engine which can meet the specific needs of users. In this paper, we develop a configurable full-text search engine which can support different types of database.
The developing skeleton of American amphibious assault ship is introduced. Based on research of USS America LHA-6 which includes its combat characteristic and the commanding structure of the US amphibious warfare, the combat mission of USS America LHA-6 in American amphibious warfare is analyzed. It is meaningful on developing amphibious warships and combat structure of PLA.
