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
The rapid developing of network information technology causes huge change over world, the character of system confrontation is increasingly obvious under information situation,and network information system construction faces challenges and opportunities. Network Information System of PLA begins to take shape and remarkable achievements are accomplished, however, the relevant technical specifications are not completely unified and overall design framework is needed. Establishing Network Information System is one of the major issues of our army. This paper designed a reference model of Network Information System technical architecture, analyzed the key part of the reference model from demand to technology and laid a foundation for constructing a sound Network Information System.
It is of great signification to construct data resources and achieve unified, concentrated management of mass data for the normalization of command information system effectiveness evaluation and evaluation results sharing. This paper analyzes objects and matrices of required effectiveness evaluation to command information system, and puts forward the data requirements of the effectiveness evaluation, including data types and data contents. The research results have important guiding significance for the construction of the data center of the observation and early warning system effectiveness evaluation.
The model of network entropy survivability is proposed, and the change of the whole, dynamic and confrontation of space-based early warning system is analyzed. The influence system of the factors such as the average degree of the network, the average path length, the clustering coefficient, the network diameter, the global efficiency of the network and the maximum connected subgraphs are constructed and the gray relational analysis is carried out to quantify the anti-The degree of correlation between factors. Finally, an example is given to summarize the influence of various factors on the survivability of space-based early warning system.
As important component of space-based information support force, reconnaissance satellite has been important source of information for maritime precision strike. By introducing OODA (Observe, Orient, Decide and Act) loop, an information-fire power fusion operational process model of reconnaissance satellite and maritime operational platform is established. Main influencing factors and their effect for operational process are analyzed from information chain. Corresponding conclusions are verified by MATLAB simulation examples.
According to the principle of intercepting incoming torpedo by ATT and its tactical and technical characteristics, the basic requirement for ATT to intercept incoming torpedoes is that they must be launched to ensure that they can find incoming torpedo in a prescribed range.And a detective range model that describing the effective interception by ATT is established. Then point out the difficulties and main problems of tactical and technical use of ATT through the differences of surface ship and submarine attacked by torpedo in tactical background and technical characteristics.
During the navigation period of the aircraft carrier formation, the air-defence-guard ship is an important unit which has intermediate-range aerological sounding and air interceptor combat capability. This paper analyses the position configuration problem of the air-defence-guard ship during the air defense operation of navigation period, The similarities and differences of the position configuration model are distinguished emphatically between the enemy air forces and anti-ship missiles. The combat models are set up to research the factor of the detection and interception capability of the air-defence-guard ship. The different variable’s impact on the detection and interception probability is analysed. This paper uses MATLAB to simulate the change regulation factors of early warning detection ability and intercept air-defence-guard,and verifys the applicability of the model.
The detection performance of the passive sonar buoy is closely related to the sound speed profile, the depth of the buoy, and the depth of the submarine. This paper studies the probability distribution of submarines in different depths from the point of view of submarine radiation noise loss. Based on this, the optimum depth of the passive sonar buoy in the shallow sound velocity profile is studied. The results show that different sound speed profiles influences the probability distribution of submarine navigation depth and the best use depth of the sonar buoy. It is very important to improve the detection performance of sonar buoy for different sound velocity profiles and choose different working depth. In the condition of different sound speed profiles, selecting different working depths is of great significance to improve the detection performance of sonar buoys.
In order to deal with the enemy submarine fleet during navigation threats, may consist of shipboard anti-submarine helicopters and anti-submarine surface ship anti-submarine patrol line on our fleet to provide anti-submarine protection. In this paper, we study a new approach to the forward patrol and anti-submarine of the two-wing warships, and establish the position model of the initial assembly point of the anti-submarine helicopters and surface ships, the effective width model of the anti-submarine patrol line, the anti-submarine helicopters and the surface ships. And the simulation model is validated by simulation.
Both radar and ESM fusion are important sensors in airborne information processing. When the radar sensors are under the condition of radiation, the radar and the ESM sensors cannot get the measurements continuously. Aiming at this problem, a method of fusion precision of intermittent radar and ESM data based on optimal data compression is proposed in this paper. And the problem of radar and ESM measurement interruption could be effectively solved using this method. In addition, this paper studies the influence of the radar and ESM sensors’ precision and data rate as well as the length of shut down time on the fusion performance. Simulation results show that whether the ESM angle measuring accuracy is smaller than the radar angle measuring accuracy has an important influence on the fusion accuracy, and the fusion error is affected by the radar measurement error largely.
Airborne magnetic anomaly detection have been developed for many years. In the domestic underwater sinking magnetic anomaly detection research is in the initial stage. It is important for underwater sinking magnetic anomaly detection to analyze the similarities and differences between the two to learn from airborne magnetic anomaly detection related experience. In this paper, the submarine magnetic anomaly detection model is established, the paper analyzes the magnetic field signals of these two methods and compares the signal characteristics, detection methods, detection sensors and so on. The two methods are interlinked and submarine magnetic anomaly signal is similar. Related methods can be used on underwater submerged magnetic exploration to provide theoretical support for the diversification of non-acoustic submarine detection.
The Joint Probabilistic Data Association Algorithm is highly effective for multiple targets tracking in clutter, but its real-time is poor in dense targets or echo environment, so that it can not satisfy some complex scenario of multiple targets tracking. A modified JPDA algorithm is proposed to solve the problem. In the proposed algorithm, the process of splitting the validation matrix is avoided, so the calculation of association probability is simplified and the real-time is improved, simulation results proved the effectiveness of the proposed algorithm.
In order to reduce the loss so that we can make full use of the min-sum algorithm in LDPC codes decoding, this paper deeply researches in the min-sum algorithm. The analysis of the min-sum algorithm’s principle comes to that it is the over-estimation which is related to the difference of the minimum value and the second minimum value that leads to the loss. Thus, this paper proposes a modified min-sum algorithm by reducing the over-estimation.Simulations show that this algorithm is better than the traditional MS algorithm without increasing complexity.
Operational experiment is an important method on researching warfare, and the evaluation of operational experiment is an important step which ensures the scientificalness and effectiveness of its conclusion. On the base of researching correlative theories such as AHP and the evaluation to operational experiment, this thesis puts forward a general quantitative evaluating model of operational experiment. The model accomplishes weight-distribution to operational experiment evaluation index system based on AHP, achieves nondimensionalization and normalization to isomeric result of indexes by designing normalized functions, and educes general evaluating result with the help of quantitative formula. In the end, a case validates the effectiveness and practicability of model sufficiently.
Regarding the cooperative engagement of ground attack Unmanned Aerial Vehicles (UAVs),we construct the index system of operational effectiveness assessment and effectiveness factors model, then develop the computation model of operational effectiveness for UAVs which carry different mission payloads to perform cooperative missions, and present a solution to the model based on heuristic integer programming algorithm. Finally, by analyzing a specific example, we find that the cooperative operation effectiveness is subject to the types and numbers of mission payloads. And we also analyse the changes of mission payload configuration caused by different numbers of UAVs,and the influence of the type of mission payload and combat task on the UAVs configuration.
As sea targets’ detection and measuring capability varying with radar state, technical performance and working environment, ADC and AHP model were introduced in order to evaluate radar’s detection and measuring capability to sea quantitatively. To begin with, ADC model available to AEW radar’s capability evaluation was set up, as well as index of Availability, Dependability and Competence were provided. Afterward, hierarch of capability factors’ weight computing method was given based on AHP. Finally, the built model was validated by certain typical AEW radar’s emulation. Emulating result showed that the built modal could evaluate AEW radar’s detection and measuring capability to sea quantitatively, and factors’ influence to capability was exhibited quantitatively.
In order to solve the problem of commander’s comprehensive quality evaluation in which the evaluation information are in the form of interval-valued dual hesitant fuzzy uncertain linguistic variables with unknown attribute weight, a multiple attribute decision making model of commander’s comprehensive quality based on interval-valued dual hesitant fuzzy uncertain linguistic variables is proposed. Firstly, this article gives the index system of the comprehensive quality evaluation of the commander, and uses the AHP to determine the attribute weight. Then, the expert survey method is used to assign the evaluation information. Finally, the methods of GRA and TOPSIS are established, and an example is given to prove the validity and feasibility of the methods.
The research of simulation scenario generation is aimed to standardize the initial states of military simulation and improve the information level of military scenario operations. Sum up several definitions and classifications related to military simulation scenario, and induct the current states and progress on simulation scenario generation from two aspects of content extraction and content of extraction. As concluded, some development trends of simulation scenario were proposed.
Using ontology specification, reusable, and the characteristics of formal, proposes a framework of command information system modeling method based on ontology, the ontology model of command information system is constructed from two aspects of command information system unit and the relationship between entities, and the space-based information support of the anti-missile combat command information system as an example to verify the method proposed in this paper, can provide a standardized model description means for system design and analysis.
In allusion to the problem that the state communication is frequent and the calculation load is not easy to be balanced in the radar countermeasure simulation, a method of simplifying the "load optimization" is proposed. The communication problem of the model is transformed into the model interaction problem, through the static analysis method, the interaction between the models is calculated from the three aspects of time, probability and quantity. The calculation load of the model is transformed into the model complexity analyzed by the group decision method. The group decision method is improved by the interval theory, which reduces the subjectivity of decision information and eliminates inconsistent information in interval. The simulation data shows that this simplified method of "load optimization" can reasonably map the model to the processor and demonstrates the effectiveness of the method.
At present the marine rights situation our country faces is very grim. Safeguard marine rights and interests according to law is a very difficult task. Effective marine law enforcement equipment to improve law enforcement capacity is urgent needed. The paper mainly research the interference effect of underwater acoustic countermeasure system. The simulation analysis from two aspects of effective interference source and effective jamming sector, and studied the effects of different hydrological conditions on interference effect.
As an important part of the situation awareness, event detection refers to the perception of the changes of battlefield situation, which is the basis of the situation assessment. Whether the meaningful behaviors of the current battlefield can be detected correctly directly affects the assessment results of the situation. The paper puts forward a tactical maneuver event detection method based on Rosetta software and Vague sets to discretize the target historical data and create an event decision table. Through the genetic algorithm reduction method in Rosetta software, this study simplifies the event decision table to obtain a simplified decision table. Finally, the target state changes obtained from real-time detection are discretized, and Vague sets are created based on a minimal decision table. By calculating the similarity of events, any event can be judged according to the evaluation system. As the simulation results reveals, this method greatly improves the accuracy rate.
Aiming at the problem that the result of comprehensive target recognition, given by the decision-level fusion, is not accurate enough when some single-source results are highly conflicting or unavailable, a new method based on target fusion feature and multiple neural networks fusion is studied. In this method, multiple features of a target are fused by genetic algorithm firstly. And then the Monte Carlo fusion method is used to fuse the multiple neural networks, build by bagging method separately. The experiment verifies that this method can respectively promote the accuracy and stability of target recognition by two-level fusion.
Optical-electronic is a common shipborne method to track shore targets, however, the rain influence its laser ranging. In order to solve this problem, a shipborne optical-electronic system is improved basing on binocular vision, using its passive characteristics. Factors affecting ranging are analyzed and distance calculation method is given in this paper. Under the conditions of setting, the ranging accuracy is simulated, the results show that the method has some reference value.
A kind of single UAV target positioning model combining CCD camera and laser imaging radar is established based on the single UAV bearing only positioning in this paper. Taking the reliable ground reference as the relay point, the target position parameters of the naval gun shooting could be obtained by coordinate transformation. The errors were compared in terms of the distance, the angle of direction and the angel of elevation through a large number of simulation and calculations. And the results showed that the proposed scheme had less error range than the traditional triangulation positioning method.
Positioning equation based on TDOA is analyzed, the nonlinear function of position error on target azimuth of station is solved by the differential operation of the equation, the specific factor which affects the positioning accuracy is found out by analysis of function. In addition, an chaotic double disturbance particle swarm optimization algorithm is put forward to solve the function for the problem that nonlinear function is difficult to solve, the algorithm can quickly find the base station layout which satisfies the minimum position error when the target position is changed, and the features are summarized which meet the minimum positioning error of the base station layout. Finally the conclusion is verified by an example.
It is available to improve the firing accuracy of shipborne gun by firing dummy target firstly. But the calibrating accuracy descended due to the variance of velocity and course bearing between ship track and intending course. Therefore, the model of firing dummy target was optimized with longitude and latitude of ship navigation. The deviation between bomb water column and dummy target was calculated considering the position of gun firing was coordinate origin. It is proved by simulating that the firing accuracy of the new model was better and not influenced by sea condition, and the accuracy superiority was obvious much more when the firing distance was far. The new model would be applied widely along with the accuracy of ship navigation was improved.
Infrared images with small target or gray histogram without obvious double crest characteristics are hard to segment effectively. To solve this problem, a method for improving histogram shapes by edge information is proposed. This method overcomes the restriction of the relative size of the target and background and improves the symmetry of histogram crest value.And we can get double crests separated by a deep valley. Compared to traditional Otsu method,the improving method can obtain the more desirable segmentation results and get better interest target.
Cloud computing has been widely utilized in commercial areas, and also expanded its usage in military areas in recent years. But some problems have been encountered in terms of its usage in tactical environment. The paper enumerates four different types of tactical cloud and their application scenarioes, and studies the architecture, clouldlet provision modes as well as its discovery protocals in detail. In the end, the paper analyses the current status and potentials of tactical cloud computing utilization in US forces.
