Loading...

Table of Content

    28 February 2024, Volume 52 Issue 1
    AIR SPACE DEFENSE SYSTEM AND WEAPON
    Preliminary Research on Grid Interception Tactics of Anti-hypersonic Missiles
    Song WANG, Shengxiang SHAO, Xiaowen LUAN, Shuaiqin ZHANG
    2024, 52(1):  1-7.  doi:10.3969/j.issn.1009-086x.2024.01.001
    Asbtract ( 131 )   HTML ( 20)   PDF (1161KB) ( 149 )  
    Figures and Tables | References | Related Articles | Metrics

    Hypersonic missiles have become the cutting-edge weapon in the game of great powers, causing a serious impact on the existing missile defense system. In response to the hypersonic missile threat, a distributed grid-based interception tactics is proposed, which helps to realize the innovative development from layered defense to distributed defense. The proposed method embodies the advantages of distributed and flexible operations, satisfies the rapid response requirements of anti-missile operations, and is feasible to realize the real-time optimization of interception planning in a large defense depth. The grid deployment model and the interception planning process based on short-term trajectory prediction are given. Under the scenario of anti-hypersonic cruise missile, the proposed method is preliminarily demonstrated, and the operational principles are summarized. With the detection support of space-based networking, this method can effectively deal with the major threat caused by the strong maneuvering of hypersonic missiles by using short-term prediction of the target trajectory.

    Threat Assessment of Penetrating Counterair Operational Aircraft Based on Analytic Hierarchy Process
    Junchen BAO, Daowen HAN, Li CHENG, Shuangyu WANG, Zhenzhi SONG
    2024, 52(1):  8-15.  doi:10.3969/j.issn.1009-086x.2024.01.002
    Asbtract ( 252 )   HTML ( 29)   PDF (717KB) ( 390 )  
    Figures and Tables | References | Related Articles | Metrics

    Aiming at the operational concept of penetrating counterair of the U.S. Air Force, in order to meet the requirements of target analysis of anti penetrating counterair operation, a threat assessment method for penetrating counterair operational aircraft is proposed. According to the characteristics of penetrating counterair operation, the aircraft threat assessment indicators is set up, and a threat assessment indicator system for penetrating counterair operational aircraft is built; based on the analytic hierarchy process, the penetrating counterair operational aircraft threat assessment model is established and the threat ranking of penetrating counterair operational aircraft is obtained. The effectiveness and rationality of the proposed threat assessment method are verified by case calculation, which can provide a basis for target analysis and strategy research of anti penetration counterair operation.

    An Integrated Training Implementation Method Based on Virtual-Real Combination of Inside and Outside Field
    Baojie HU, Fuhong GONG, Fangjun HE, Pan WANG
    2024, 52(1):  16-23.  doi:10.3969/j.issn.1009-086x.2024.01.003
    Asbtract ( 81 )   HTML ( 6)   PDF (1508KB) ( 53 )  
    Figures and Tables | References | Related Articles | Metrics

    Air attack and air defense training is faced with problems such as system construction and situation construction, and traditional training methods can no longer adapt the training needs of the new period.. This paper analyzes the advantages and disadvantages of outside field real-force training and inside field simulation training, and puts forward the integration training method of inside and outside field based on the virtual-real combination. The key technologies for realizing the virtual-real combination are analyzed, and the technology of real-force sensing virtual-force based on air feed is studied. Theoretical derivation is given from the aspects of target echo control, flight track planning and multi-radar flight track fusion, and the technology of virtual-force fighting real-force based on agent is analyzed, which provides a theoretical basis for the virtual and real mutual sensing and mutual resistance. The comprehensive use of inside and outside field resources has been applied for example, providing reference for the follow-up system construction and training mode innovation.

    AIRCRAFT TECHNOLOGY
    Stepwise Deployable Mechanism Design and Dynamics Analysis of UAV Folding Wing
    Ye XU, GuoSheng XU, Yukun WANG, Gang WANG, Jingwang LIU, BoJun FAN, Miao WU
    2024, 52(1):  24-33.  doi:10.3969/j.issn.1009-086x.2024.01.004
    Asbtract ( 78 )   HTML ( 4)   PDF (2561KB) ( 56 )  
    Figures and Tables | References | Related Articles | Metrics

    Folding wing deployment scheme of small patrol UAV has an important influence on UAV flight mode switching. According to folding characteristics and deployment requirements of UAV folding wing, two deployment schemes synchronous deployment and stepwise deployment are proposed. With deployment dynamics model of a folding wing being established based on Lagrangian method, and folding wing drag force during deployment being calculated with aerodynamic simulation tool, driving torques needed for different deployment schemes are obtained. Driving torque is used as the evaluation criterion to optimise deployment scheme of the folding wing. Simulation results show that the stepwise deployment scheme has a short deployment time and a small deployment torque to reach the required deployment position. Finally, a deployment mechanism is designed for the stepwise deployment scheme, and static strength analysis of the structure is provided to verify the feasibility of the structure.

    MILITARY INTELLIGENCE
    Application of Improved Ant Colony Algorithm to Terrain Following Route Planning Problem
    Yang TAO, Yi ZHOU, Huangtao JIANG
    2024, 52(1):  34-40.  doi:10.3969/j.issn.1009-086x.2024.01.005
    Asbtract ( 73 )   HTML ( 1)   PDF (1120KB) ( 40 )  
    Figures and Tables | References | Related Articles | Metrics

    This paper presents a general solution based on improved ant colony algorithm for aircraft terrain following route planning. The three-dimensional map is reconstructed into solution space by the idea of spatial equipartition, and a series of improvement measures are adopted to enhance the efficiency of the ant colony algorithm, including: designing the pheromone updating strategy to strengthen the positive gain of the optimal ants in the colony and weaken the negative gain of the worst ants; designing the node movement strategy by comprehensively considering the effects of the feasible waypoint distance, altitude, and turning angle; adopting the particle swarm algorithm to intelligently and optimally solve the core parameters of the ant colony algorithm to achieve the rapid generation of terrain following routes. Finally, the advancedness and feasibility of the method are verified by specific examples.

    High-Level Semantic Distillation for Incremental and Continuous Object Detection
    Mengxue KANG, Jinpeng ZHANG, Zhe MA, Xuhui HUANG, Yating LIU, Zizhuang SONG
    2024, 52(1):  41-48.  doi:10.3969/j.issn.1009-086x.2024.01.006
    Asbtract ( 32 )   HTML ( 3)   PDF (624KB) ( 38 )  
    Figures and Tables | References | Related Articles | Metrics

    Modern defence requires intelligent perception algorithms to possess incremental and continuous learning capabilities in complex open scenarios, while traditional deep learning methods are based on closed training with the entire dataset, which limits their application ability and usage scope. Existing continuous learning algorithms face the problem of catastrophic knowledge forgetting. This paper proposes for the first time an incremental continuous target detection method based on the distillation of high-level semantic features, which guides the selection of high-value underlying features through high-level semantic features and distills the feature from the teacher model to the student model, thus effectively facilitating the transfer of knowledge of the old task and alleviating catastrophic knowledge forgetting. Experiments on the public image dataset MS COCO show that this method outperforms the previous best method for target detection in all types of continuous learning scenarios, which is expected to promote the generation of continuous learning capability and autonomous attempts of intelligent systems in open-world setting.

    Air Combat Flight Action Recognition Based on Improved Support Vector Regression
    Qingli LIU, Rui LI, Chenhao QIAO
    2024, 52(1):  49-56.  doi:10.3969/j.issn.1009-086x.2024.01.007
    Asbtract ( 25 )   HTML ( 2)   PDF (1043KB) ( 40 )  
    Figures and Tables | References | Related Articles | Metrics

    Aiming at the problem of low recognition accuracy due to the increasing complexity of aircraft flight movements in air combat, this paper proposes an air combat flight situation recognition method based on enhanced support vector regression. The sparrow search algorithm is improved by using pinhole imaging and chaos initialization. The improved sparrow algorithm is used to optimize the support vector regression algorithm, which is specifically represented by the optimisation of the parameters of the Gaussian kernel function in the support vector regression algorithm. The optimized support vector regression algorithm is used to identify aircraft movements.Five basic flight actions and complex flight actions are used to verify the recognition accuracy of the method. Simulation shows that the optimised support vector regression algorithm improves the average recognition rate of basic flight manoeuvres by at least 2.2%, and the average recognition rate of complex flight action by at least 3.7%, compared with the traditional support vector regression algorithm, fuzzy support vector machine algorithm, traditional clustering algorithm, and neural network algorithm.

    NAVIGATION,GUIDANCE AND CONTROL
    Approach Orbit Design Method for Space Multi-target Glide Observation
    Yuhao LIU, Bing ZHANG, Zijin FANG
    2024, 52(1):  57-64.  doi:10.3969/j.issn.1009-086x.2024.01.008
    Asbtract ( 66 )   HTML ( 1)   PDF (909KB) ( 50 )  
    Figures and Tables | References | Related Articles | Metrics

    Aiming at the problems of low observation efficiency and insufficient fuel in current space-based space observation tasks, this paper proposes a close orbit design method for space multi-target skimming observation based on particle swarm optimization algorithm and space multi-target observation model to achieve the close range skimming observation of specific multi-target under the condition of constant orbit. The space multi-target observation model is established by combining the distance calculation of two orbiting satellites with the conditions of sky light and earth shadow. The particle swarm optimization algorithm is used to optimize the number of six orbits of the observer to obtain the optimal orbit for the comprehensive closest distance observation of a specific multi-target. The periodic difference generated by the orbital height difference is used to offset the phase difference between the target and the position at the intersection in a way that consumes time to get the most fuel-efficient way, and the formula for the most fuel saving is obtained at the cost of time. Finally, the numerical method is used to illustrate the effectiveness of the orbit design method.

    COMMAND CONTROL AND COMMUNICATION
    Research on Resource Modeling Method of C4ISR System for Software Definition
    Zhaochen ZHANG, Shaojie MAO, Jingjing YAN, Xiaobin MAO
    2024, 52(1):  65-73.  doi:10.3969/j.issn.1009-086x.2024.01.009
    Asbtract ( 30 )   HTML ( 2)   PDF (1618KB) ( 54 )  
    Figures and Tables | References | Related Articles | Metrics

    In order to realize the mosaic of C4ISR system construction mode, aiming at the construction of "meta element" data model of the system, driven by the software definition technology, the definable resource modeling principle is discussed, the resource modeling process is put forward, the resource concept is defined, and the resource classification framework based on multi perspectives is established. Around the control of resource information flows and the open sharing of capabilities, the model elements are proposed. According to the characteristics of 7 kinds of resources, the reference models are established. The applicability of the model to software-defined system construction is verified by instantiating the modelling of resources under typical cases.

    TARGET CHARACTERISTIC, DETECTION AND TRACKING TECHNOLOGY
    Airspace Configuration Method of AWACS in Polygonal Responsibility Area in Air Defense Operations
    Wei QI, Haijie WANG, Dongsheng CHENG, Aoyue ZHENG
    2024, 52(1):  74-82.  doi:10.3969/j.issn.1009-086x.2024.01.010
    Asbtract ( 69 )   HTML ( 1)   PDF (1524KB) ( 58 )  
    Figures and Tables | References | Related Articles | Metrics

    Aiming at the problem of airspace configuration of AWACS in irregular polygonal responsibility area in air defense operations, based on the real-time detection area formed by the shortest direct flight distance and the smallest turning diameter of the AWACS patrol route, the AWACS responsibility subarea and the corresponding available airspace for AWACS patrol are determined through optimization algorithm. Based on the evaluation criteria of AWACS stability coverage, the airspace configuration is further optimized, and finally the optimization scheme of AWACS airspace configuration is obtained. The feasibility of this method in planning AWACS airspace configuration in irregular polygon responsibility area and the effectiveness of improving operational efficiency are verified by numerical simulation. The method has strong practical value and military value.

    Review of Underwater Target Wake Detection in Remote Sensing
    Yuchen SHI
    2024, 52(1):  83-91.  doi:10.3969/j.issn.1009-086x.2024.01.011
    Asbtract ( 44 )   HTML ( 2)   PDF (1276KB) ( 92 )  
    Figures and Tables | References | Related Articles | Metrics

    Underwater target detection plays an important role in modern warfare. With the development of remote sensing, detecting and identifying underwater targets through images is one of the key research directions. The article briefly introduces hydrodynamic wake and thermal wake. According to the classification of remote sensing images, the characteristics and algorithms of wake detection from optical images, synthetic aperture radar (SAR) images, and thermal infrared images are analyzed. The preliminary concept of future development is put forward, and the key technological directions that should be paid attention to are sorted out and summarized, so as to provide reference for the development of underwater target detection.

    Spectral Image Compressed Sensing Reconstruction Based on Tensor Decomposition
    Ziyuan ZHAO, Yidong TANG, Shucai HUANG
    2024, 52(1):  92-101.  doi:10.3969/j.issn.1009-086x.2024.01.012
    Asbtract ( 64 )   HTML ( 1)   PDF (3295KB) ( 29 )  
    Figures and Tables | References | Related Articles | Metrics

    The spectral imaging provides important support for ballistic missile early warning by virtue of its abundant spatial and spectral information, and the compressive sensing provides a effective approach for spectral image data collecting and processing. Aiming at the existing compressed perceptual reconstruction mostly adopts the coding method of "spatial domain compressed sampling and inter-spectral traditional compression", which still exists a certain waste of resources, a compressed perceptual reconstruction method based on tensor decomposition for spectral images is proposed. Taking use of the sparsity of spectral image data in three-dimensional space, a reconstruction model based on Tucker decomposition is built, and the solution algorithm based on orthogonal matching pursuit(OMP) is given. Moreover, an improved OMP algorithm which takes three-dimension tensors as dictionary atoms is proposed by expanding traditional OMP algorithm into three-dimensional space. The experimental results indicate that the proposed method can effectively reduce algorithm complexity and improve the performance of reconstruction.

    A High Order Motion Feature Estimation Method for Multi-radar Maneuvering Target Detection
    Songyao DOU, Ying CHEN, Yan CHEN, Zhengwei LIU
    2024, 52(1):  102-110.  doi:10.3969/j.issn.1009-086x.2024.01.013
    Asbtract ( 45 )   HTML ( 1)   PDF (2882KB) ( 54 )  
    Figures and Tables | References | Related Articles | Metrics

    Due to the mismatch between the tracking model and the real motion state of the target, the estimation accuracy of the high order motion feature of the target is poor in single-station radar.In this paper, the estimation accuracy of high order motion feature of the target is improved from the perspective of radar networking and radial velocity augmentation measurement. The sequential unscented Kalman filter algorithm is used to centrally fuse the asynchronous measurement information of multiple radars. The estimation effect of the high order motion feature of the target under different ranging, angular accuracy and radial velocity augmentation measurement is analyzed, and the influence of the radar station layout on the estimation effect of the high order motion feature of the target is analyzed by using the geometric accuracy factor of double sensors to optimize the radar station layout. Through simulation experiment, it is found that the radar ranging accuracy in this radar networking mode has a greater impact on the estimation effect of high order motion feature than the angle measurement accuracy. Radar station layout optimization combined with radial velocity augmentation measurement can effectively obtain high precision estimation of high order motion feature of target.

    INTEGRATED LOGISTICS SUPPORT TECHNOLOGY
    Research on the Technology of Multi-functional Naval Missile Carrier
    Xiaojun WANG, Ping REN, Shulin CUI, Lili ZHAO
    2024, 52(1):  111-115.  doi:10.3969/j.issn.1009-086x.2024.01.014
    Asbtract ( 26 )   HTML ( 3)   PDF (1205KB) ( 42 )  
    Figures and Tables | References | Related Articles | Metrics

    Aiming at the problems of single function, poor versatility, cumbersome loading operation process and long time in the process of missile transfer and loading, a technical scheme of multi-functional missile transport vehicle is proposed.The scheme takes the design concept of generalization and structural function integration, integrating the transport function and auxiliary erection function of the transport vehicle.The horizontal and vertical attitude conversion functions of the missile are integrated under the premise of meeting the road transportation functions of various types of missiles in Haitong.The limitation of the loading method of missile on the ship is broken.The problem of complicated lifting procedure in the process of missile loading on the ship is solved, the function of directly lifting the vertical missile-in-container on the transport vehicle is achieved, and the time of missile-in-container loading ship is shorten. The scheme simplifies the process of shipborne missile transfer and loading, and the efficiency of equipment use is improved.

    Protection Capability Comparison of Different Radar in Front Doors Coupling
    Xin HU, Jiangping YANG, Cangzhen MENG, Zhifang ZUO, Yi XU, Yuxi XIE
    2024, 52(1):  116-123.  doi:10.3969/j.issn.1009-086x.2024.01.015
    Asbtract ( 17 )   HTML ( 1)   PDF (1851KB) ( 44 )  
    Figures and Tables | References | Related Articles | Metrics

    Aiming at the problem that radar is easy to be damaged when being attacked by HPM weapons, this paper theoretically analyzes the relationship between the farthest protection boundary to antenna gain and receiving front-end limiter’s capability, and compares the capability of reflector radar and active phased array radar against front door coupling attack from the perspective of spatial filtering. The analysis shows that only when the HPM weapon is near the main lobe range of the reflector radar antenna, its front door coupling attack effect is stronger than that of the active phased array radar; on the contrary, it is weaker than active phased array radar. Because the main beam of the reflector antenna radar is very narrow, the attack time window is very short, so the reflector antenna radar has stronger protection ability when facing HPM weapons.

    SIMULATION TECHNOLOGY
    Research on Simulation of Submarine Evading Torpedo Attack Through Changing Depth by Strong Movement
    Wenqiang DING, Hao DING, Zhiyun ZHAO
    2024, 52(1):  124-129.  doi:10.3969/j.issn.1009-086x.2024.01.016
    Asbtract ( 52 )   HTML ( 5)   PDF (1003KB) ( 34 )  
    Figures and Tables | References | Related Articles | Metrics

    Changing depth by strong movement to avoided torpedo terminal attack trajectory is one of the methods of submarine avoiding torpedo attack, and this method is also the final defense measure of submarine avoiding torpedo attack. The feasibility and effectiveness of this evasion method can provide reference for submarine commanders to scientifically and reasonably maneuver the submarine to evade torpedo attacks, which has very important theoretical research significance and military application value for improving the submarine's vitality and combat effectiveness. Based on the theoretical analysis of the basic principle of the strong maneuver evasion scheme and the effect of different maneuver modes, and the modeling simulation calculation of the relative motion situation of the submarine and the torpedo, the paper verifies the effect of the submarine's strong maneuver by changing depth to evade the torpedo attack. Simulation shows that, within a certain distance, the high-speed maneuvering submarine uses high-pressure air to blow away the water in the main ballast water tank, and at the same time adopts the upward floating large rudder horn to make the submarine large tail incline high-speed upward floating to the surface to avoid the torpedo end attack trajectory, and then quickly dives to the shallow water layer to complete the avoidance of torpedo attack, this tactical maneuvering evasion measures are theoretically feasible, but the timing of this program should be considered and analyzed fully.

    Design of Carrier-Based Aircraft Operational Command Training System Based on LVC
    Jianchao LIU, Fei DONG, Siyu JI, Qiong WU
    2024, 52(1):  130-138.  doi:10.3969/j.issn.1009-086x.2024.01.017
    Asbtract ( 21 )   HTML ( 3)   PDF (3821KB) ( 45 )  
    Figures and Tables | References | Related Articles | Metrics

    According to the high difficulty and risk in organizing the operational command training of carrier-based aircraft equipped with multiple arms, combined with the advantages of simulation training economy and safety, the carrier-based aircraft operational command training system is researched and designed,the overall frame structure of the carrier-based flight simulation training system is built, the technical principle is described,the function of each subsystem is introduced. The functions of "back to back" operational planning, multi-level force command and control, access to command information system, multi-dimensional situation display, confrontation effect evaluation and other auxiliary decision support are realized. Two application modes, "human-in-the-loop" and "human-out-of-the-loop", are established, and the key technologies are analyzed, such as the use of injective extension technology to support the high-performance parallel simulation engine driver, the joint middleware technology based on interface programming and dynamic QoS, and the use of code reuse to achieve the integration of the engineering numerical model encapsulation.

    Buckling Analysis of Solid Rocket Motor Shell under External Pressure Based on ABAQUS
    Fagui GENG, Zichao An, Kun HE, Jian KANG, Pengkun ZHANG, Tengyue LIU, Hang XIAO
    2024, 52(1):  139-146.  doi:10.3969/j.issn.1009-086x.2024.01.018
    Asbtract ( 23 )   HTML ( 1)   PDF (2234KB) ( 39 )  
    Figures and Tables | References | Related Articles | Metrics

    The finite element analysis software ABAQUS is used to analyze the buckling of solid rocket motor shell under external pressure. By comparing the theoretical formula calculation results with the finite element calculation results, the error between the finite element calculation results and Mises formula calculation results is within 2.7% when the length-diameter ratio of the light shell is greater than 8, which verifies the accuracy of the finite element calculation method. The buckling performance of shells with different centering parts is analyzed by finite element method. It can be seen that compared with increasing the axial length of centering parts, increasing the thickness of centering parts can improve the buckling resistance of shells more obviously. The closer the centering position is to the middle of the shell, the better the buckling resistance of the shell is. In this paper, under the size constraint of centering parts, the critical instability pressure increases by 36.1% from one centering part in the middle to three centering parts uniformly distributed.

    Threat Assessment Method of Aerial Targets under Confrontational Conditions
    Futai LIANG, Yan ZHOU, Chenhao ZHANG, Zihao SONG, Xiaorui ZHAO
    2024, 52(1):  147-154.  doi:10.3969/j.issn.1009-086x.2024.01.019
    Asbtract ( 49 )   HTML ( 4)   PDF (1119KB) ( 73 )  
    Figures and Tables | References | Related Articles | Metrics

    Threats often have the characteristics of dynamic evolution with the development of bilateral confrontation. Traditional threat assessment methods are more based on static threats and lack of prediction of dynamic threats. To solve this problem, this paper proposes a threat assessment method for aerial targets under confrontational conditions. Setting the red side as the attacking side and the blueside as the defending side. The reinforcement learning model is established with the enemy target as the agent, and its state space, action space, transition function and reward function are designed. The threat assessment model is established, the threat element index is established, and the threat assessment method is designed. The model is trained, and the trained model can predict the enemy aerial target threat according to the confrontation situation. Through test and analysis, the method is more reasonable for threat assessment of enemy aerial targets under confrontation conditions.