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
UAV cluster system is a smart combat assistant system combined with low cost and consumed UAVs for future naval. The cluster system is smart combat assistant, and its function is described in the combine with using shipboard weapon system. It has two communication modes of shipboard data link for cluster leader and Ad-Hoc network for cluster members. In future BVR (Beyond Visual Range) sea and land attack, the commander would locate the maneuvering target and provide long-range weapons with better pointing information, or cover important anti-ship missile and launching platform by using this cluster system. These methods can improve the level of ship information by connecting UAVs to detecting network and weapon system, so the cluster system will have a good future to realize joint fires network in BVR warfare and provide innovation ideas for future combat equipment.
On the basis of enumerating the current situation of active communication jamming projectile at home and abroad, this paper summarized and sorted out the literature classification in the field of communication jamming projectile from three aspects:evaluation and calculation of operational effectiveness of jamming projectile, optimal distribution solution of jamming projectile, technical scheme summary of jamming projectile’s development. At the same time, the existing problems of active communication jamming projectile were analyzed. The future development direction of communication jamming projectile was expounded from three aspects:broadening the jamming frequency band, innovating jamming means and diversifying launching platform.
Difficult problems at joint firepower mission planning is about evaluation and optimization, so propose a intelligence combat evolutionary algorithm based on improved genetic algorithms. This algorithm designed to use battlefield situation map for building OODA loop super network, and simulated superior bad discard in natural world to design genetic and variation module for self-evolution. Finally, using algorithm can obtain optimal object. The simulations reveal that the method is useful in mission planning for joint firepower operation.
In order to evaluate the command and control capability of operational forces systematically and comprehensively, based on the analysis of command and control capability, an evaluation index system is constructed, which includes five aspects: analyzing and judging ability, overall decision-making ability, organizing and planning ability, controlling and coordinating ability and command information system’s applying ability. Fuzzy comprehensive evaluation method, TOPSIS method and grey relational analysis method are used to evaluate command and control capability separately, and consistency test of evaluation results is carried out. On the premise of ensuring the consistency of the evaluation results, the combined evaluation model of arithmetic mean, the combined evaluation model of Copeland and the combined evaluation model of drifting degree are used to evaluate respectively. Then, the Spearman correlation coefficient method is used to check the consistency after the event, and the best combined evaluation model is selected. Finally, the rationality of the method is verified by an example.
Aiming at the problem that the traditional target threat assessment method is insufficient for the continuous motion information of threat targets, a near-shore target threat assessment model based on potential threat analysis is proposed. The paper establishes the near-shore target threat assessment index system, combines the analytic hierarchy process and the entropy weight method to obtain the index weights, and uses the target parameters to obtain the target motion trends and potential threats in real time, and then correct the target threat degree to achieve the purpose of maritime threat early warning. The simulation experiment shows that the method is effective, and it can better balance the subjective experience and objective data, and fully apply the target real-time motion information to analyze its potential threats, making the evaluation results more accurate and reasonable.
The concept of fire situation of amphibious assault ship to air self-defense is put forward. Based on the analysis of hard weapon resources of amphibious assault ship to air self-defense, 28 fire situations of amphibious assault ship to air self-defense are determined, and the dynamic fire assignment process of amphibious attacking ship to air self-defense based on situation-driven is established.
Aiming at a longitudinal flight control system of guided projectile,a sliding mode variable structure control algorithm based on fuzzy gain tuning is designed. On the basis of establishing the longitudinal motion equation of guided projectile, a sliding mode variable structure control algorithm based on exponential reaching law and a fuzzy sliding mode controller with gain tuning is designed. The simulation results show that the designed control algorithm can accurately track the instructions of the control system and maintain good dynamic response characteristics.
In view of the problem of the anti-ship missile searching probability decreasing seriously because of large error of target designation, a target searching method for secondary attack of anti-ship missile is proposed. The determining method is presented for target aiming points positioning and searching probability calculating in different target designation errors and different target distances. The simulation experiment shows the proposed models are valid. The research is beneficial in theory for attack decision-making for anti-ship missile especially under condition of large target dispersion error.
The situation of battlefield is complicated. How to reflect the change of situation in real time and accurately and make threat assessment and fire distribution to the attacking target is an important link in air defense command. Combining with the characteristics of modern low altitude defense operations and the working process of command automation system, various factors affecting the threat assessment of targets are analyzed and the main target attributes are selected. Based on the selected target attributes, a threat assessment ranking model and fire assignment planning model based on grey relational model are proposed according to grey theory and weighting method. The effectiveness and reliability of the target threat assessment model and the fire distribution scheme are verified by the simulation results.
All sorts of unmanned aerial vehicles (UAVs) have been widely used in various fields of society. Target aircraft are mostly used in the development test, appraisal, effectiveness evaluation of air defense weapons, as well as in military training and exercises. In order to meet the needs of different uses, mature models of UAVs are often upgraded and transformed to acquire new functions. According to the plan of using target aircraft to simulate combat aircraft towing decoy jamming, in order to study the influence of wing-tip towing decoy on flight performance of target aircraft, the large turbojet target machine and missile-shaped towing decoy with certain size and mounting ability are taken as research objects, and the main model parameters of target aircraft and decoy are used, and the mathematical calculation method is adopted. The variation rule of target parameters after bait release is analyzed in three working conditions, which provides theoretical support for the early demonstration of target modification scheme.
Trajectory prediction is an important step in radar handover time prediction in missile early warning. In order to improve the prediction accuracy of radar handover time, Enke method is applied to the ballistic missile prediction. Enke method establishes the reference track of the missile movement by using the two-body mechanical model, solves the differential equation of the deviation between the reference track and the actual track to obtain the deviation value, combines the reference track and the deviation value to get the actual orbit, then gets the radar handover predicted time by this trajectory prediction. In the error propagation analysis, firstly the state covariance matrix at the handover time is calculated by using the method of unscented transform, then the error ellipsoid at the handover time is calculated by the state covariance matrix. The simulation results show that, compared with the traditional trajectory prediction method, Enke method considers the influence of the perturbation factor in missile motion, can integrate over a long time, and take less time to obtain higher accuracy. It is of high application value for radar handover time prediction.
As a new type of torpedo confrontation equipment, the suspended deep-elastic is combined with maneuvering evasion to comprehensively defend the acoustic self-guided torpedo, which is a new combat style of warship underwater defense. In order to provide reference for equipment training analysis and warfare discussion, the models of warship maneuvering evasion, meeting triangle and torpedo tracking trajectory are established. The Monte Carlo method is used for combat simulation, and the estimated values of three operational effectiveness indicators including evasion probability, interception probability and survival probability are obtained. Analyzing from the perspectives of regional characteristics, monotonic characteristics, gradient characteristics and corresponding key defense zones, the result shows that the integrated defense with deep-elastic interception and maneuvering evasion can improve the defense effectiveness by single tactical means, and there is a great correlation between survival probability and torpedo alarm position. The preferred warship maneuvering routes and the key defense zones can be determined, and the targeted defense training can be carried out to improve the warship survival probability.
This paper reviews the research status of data link in missile warfare, and qualitatively analyzes the impact of data link on the effectiveness of missile operations from the perspective of missile weaponry practice. Based on the evaluation criteria of the operational effectiveness of the basic missile units, an evaluation index system is established. The operational effectiveness of a certain type of conventional missile based on the data link organization is evaluated by the fuzzy comprehensive evaluation. Comparing with the situation without data link, the operational effectiveness of the missile which use data link has greatly improved.
This paper expounds the purpose and significance of fighter aircraft’s integrated operational capability evaluation under the condition of modern information war, it fully considers the factors which affect fighter aircraft’s operational capabilities, and selects six types of capabilities, including flight capability, survivability, ECM capability, situational awareness capability, information support capability, attack capability, and then builds the evaluation index system, establishes the mathematical evaluation model with the GAHP method. Finally, it verifies the rationality of the model, and the effectiveness of the evaluation method with an example.
The effectiveness evaluation of tactical internet is an important approach to inspect and improve the tactical internet planning. At present, the evaluation is still in the development stage, lacking complete theoretical system and systematic research achievements. Through analyzing, summarizing and generalizing the characteristics of tactical internet effectiveness evaluation,the paper proposes an evaluation model based on dynamic entropy method and design program implementation method of the model. Finally, it verifies the validity and reasonability of the model with the help of simulation.
The necessity of signal level simulation in the research of radar/electronic jamming attack-defense countermeasure is expounded and the running speed of signal level simulation and its solution are discussed in this paper. Four basic techniques to improve the running speed of simulation software are introduced and analyzed: 1) to improve the level of model abstraction and implementation; 2) to improve the level of algorithm optimization; 3) to improve the level of space for time; 4) to improve the speed level of data access. The development practice of shipborne multi-function phased array radar simulation software shows that the speed of the simulation software can be increased by nearly 20 times by using the above technology.
The analysis assessment framework for simulation experiment of army combined-arms combat plan is combined with functions and process modules, based on experiment demands, speedy construction of assessment and analysis system. Based on the component technology, structure of objects and interactive achievement, this paper establishes a method for framework construction, describes the compose structure of functions, logic and interface view phases. The framework provides for class structure design and specific details of its implementation with the key modules, action description module, coordination analysis module and tracking filter module.
This article briefly introduces the basic features of Vega Prime and the process of scene generation, emphasizing the great importance of dynamic visual simulation of aviation aircraft. According to two aviation aircraft dynamic visual simulation using Vega Prime development examples, a detailed description of the project’s development process using Vega Prime and MFC is given, including the flight trajectory display of the aircraft in the three dimensional digital elevation map model, which solve the problem of loading large-scale maps in flight simulations; the display of the process of airdrop rescue package, which has realized real-time refresh of each data in MFC, dynamic transformation of viewing and capture of target frame. This paper provides some reference for the development of Vega Prime’s visual simulation.
Aiming at the difficulty of demand forecasting for helicopter line replaceable unit, and based on the analysis of the use and maintenance support processes of helicopter, the discrete event method is used to simulate the processes. The modularization model of the maintenance support processes in the whole task phases is built using ExtendSim, and is able to forecast demand of line replaceable unit scientifically. This model can provide scientific basis for maintenance support decision-making of raising, distribution, storage and transfer for spare parts.
In order to provide more realistic combat environments and scenarios for troop training, and to improve the combat effectiveness of troop training and equipment, the simulation system of photoelectric guided missile based on UAV is presented in this paper. The design method and key technology of the system is introduced. The missile attacking process can be simulated realistically by simulating the double closed-loop guidance control. A variety of threat signals and countermeasure environments for opto-electronic equipment and troop training can be constructed conveniently.
Based on the analysis about the development of attitude determination, Least-Square Ambiguity Decorrelation Adjustment(LAMBDA), which is a method of ambiguity resolution in real time, is made further study. The thesis presents detailed theoretical analysis, formula derivation and example verification for sequential conditional Least-Squares estimation and ambiguity decorrelation, and the simulations of search space before and after decorrelation and comparison of variance based on the ambiguity are verified. All these researches can provide technology reference for the future development of attitude determination.
In this paper, the theoretical analysis and simulation of the array gain and beam directivity performance for the six elements of MEMS vector hydrophone array are given. The theory, formula, parameters and conclusions used in the simulation are given. The corresponding experimental verification is carried out. The results show that the array gain and beamwidth have good consistency when the total length of the array is small.
A magnetic beacon navigation and positioning system which can work without GPS is investigated in this paper. We use the magnetic coil as a beacon in the low frequency magnetic field and the navigation. In addition, positioning methods based on Extended Kalman Filter and data fusion algorithm are applied to improve the accuracy of the system. The method of navigation and positioning of this magnetic beacon is explained by simulation, indicating that the proposed magnetic beacon navigation and positioning algorithm is attractive for many environments where GPS signals are restricted, such as indoor robot navigation, underground physical exploration and so on.
In order to analyze the application data message using DDS communication, the paper analyzes the working principle of Wireshark based on the analysis of the current available software, and studies the method of stripping the RTPS protocol parsing function code from the Wireshark source code. Based on the stripped RTPS protocol dissection code, an application data protocol analysis software is designed and implemented, and the actual DDS communication data verification is performed.
A design scheme of FPGA verification platform based on VCD waveform is proposed. Firstly, the characteristics of verifying using VCD waveform are briefly analyzed, and the FPGA verification platform and its software architecture are introduced. Then, the key technologies such as clock domain division, data buffer processing and heterogeneous solution method are analyzed in detail. Finally, an experiment is performed on the FPGA verification platform. The verified results show that the FPGA verification platform can complete the verification based on VCD waveform.
With the development of robot technology, the application scenarios of robots are constantly expanded, and more and more industries begin to use robots. The research on the application of robots in military oil depot provides a new method for the management of military oil depot and is of great significance in exploring the systematic application of military robots. This paper defines the definition of military oil depot robot, and the use of robots for army depot applications demand are analyzed, and summarizes the current terminal of the development of robots, robot development of key technology are summarized and analyzed the future army depot the feasibility of its application, introduces the method and mode of robot army terminal application. It will provide a reference for the military to use robot technology in fuel support.
In this paper, an improved eyepiece for HMD optical systems is designed, which is based on the development of miniaturization and light weight of HMD optical systems using traditional Erfle eyepieces. Firstly, the improvement potential of HMD system is analyzed from the aspects of HMD optical system principle and design parameters. Then the advantages of applying BOE to HMD system are analyzed. Finally, the design of BOE-based refraction/diffraction hybrid eyepiece is completed and compared with traditional Erfle eyepiece. The comparison results show that the refraction/diffraction hybrid eyepiece designed in this paper can make the HMD optical system achieve better design results, making it lighter and more compact.
Research on U.S. army’s tactical radio communication system is very profound guiding significance for our military’s own construction. Firstly, the article analyses the development of U.S. army’s tactical radio communication system and its supporting technology and development trends. Secondly, it summarizes the development characteristics: pay more attention to system construction, tactical requirement, and technologically-driven innovation of U.S. army’s tactical radio communication system. Lastly, based on the above research and practice, it proposes some significant inspiration for our military’s own construction.
