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 current complex network attack strategy’s insufficient accuracy in selecting the attack node set, and it is difficult to quickly obtain the core node set of the cyberspace battlefield to destroy the enemy’s cyberspace system, an attack strategy based on binary particle swarm algorithm is proposed. In this strategy, firstly the state of the network nodes is encoded, then the fitness function value based on depth-first search is calculated, and the optimal node set is solved by using the binary particle swarm algorithm, finally a simulation experiment is carried out for the typical network models to compare and analyze the performance and adaptability of the binary particle swarm algorithm-based attack strategy and the degree-oriented (betweenness) selective attack strategy, simulation shows that the attack strategy based on binary particle swarm algorithm is efficient, effective and universal, and it can provide assistant decision support for the commander.
Transfer jamming is an effective method to jam anti-ship missiles, and its coordinated strategy of active and passive jamming has an important influence on the success probability of jamming. Aiming at the current problem of solidification of transfer jamming decision-making based on single electronic warfare information and uncertainty of effect, this paper constructs a transfer jamming decision-making model based on radar and electronic warfare information, and deals with active and passive jamming under different anti-ship missile attack situations. The collaborative strategy is simulated and analyzed. The results show that the transfer interference decision model proposed in this paper can accurately coordinate the timing and location of active interference and passive false targets. Accurate transfer jamming decision-making based on radar and electronic warfare information is an effective way to improve the success probability of anti-ship missile jamming, and has certain guiding significance for the optimization of current transfer jamming decision-making methods.
At present, many countries are studying ballistic missiles and ballistic missile interception technologies. In particular, the United States recently launched an interceptor in the Pacific to successfully intercept intercontinental missiles, which has greatly attacked the deterrence of intercontinental ballistic missiles. This paper aims to propose a new ballistic missile penetration strategy. Firstly, the offensive and defensive confrontation model of the ballistic missile and the interceptor is constructed on the pitch plane, and the models of the offensive and defensive confrontation system of the two parties are respectively constructed based on the optimal control theory. The heading error is defined as the performance index, and the above model is solved to obtain the optimal maneuverable penetration and interception strategy of the ballistic missile and interceptor in the pitch plane. The theoretical results are simulated and verified, and the effects of the interceptor’s initial lead angle, ballistic missile maneuverability, maneuver timing and maneuver duration on the final miss are analyzed. The simulation results have successfully verified the correctness and effectiveness of the maneuver strategy in this paper, which has certain reference value.
In order to improve the speed and accuracy of the fire control system, the traditional iterative-correction algorithm is improved on the basis of designing each module of the air defense fire control solution system. Firstly, an air defense fire control solution system based on a certain type of rocket is built; secondly, the rocket external ballistic solution problem and the hit problem of a typical moving target are studied; then, the relationship between target height angle and target motion time is introduced in the solution process, so that the target is always considered as a moving state in the shooting plurality solution process, which changes the "static first and then moving" solution process in the traditional method. Finally, the Simulink model of the fire control solution system is built, and the simulation analysis of the traditional algorithm and the improved algorithm proves that the improved algorithm can solve the firing elements more quickly and accurately, which provides a certain reference for the research of the air defense fire control hit point and firing element solution.
In view of radar power supervison situation that testing steps are complex and range test is expensive, a calculation method of radar detection range based on echoes’ data is proposed. To begin with, receiver’s noise is offered by statistical computing based on radar data of pure area without targets, clutter and jam. Then, typical targets’ echoes’ average intensity is computed by extracted echoes’ data of targets, and combining with target distance, RCS it can receive radar detecting range. As unidentified targets without RCS value, average range through many targets’ retrival value is used to decrease targets RCS’s uncertainty. The supervision method is validated through a radar’s sample data, which proves the availability of proposed way.
In this paper, a new multi-information fusion algorithm for vectorial inertial tensor attitude estimation is first introduced. The algorithm places a particle at the top of each reference vector and associated observation vector, assigns weight to the particle and computes the inertial tensor of the particle system; diagonalizes each inertial tensor to obtain the eigenvalue, eigenvector, and transformation matrix between the principal axis coordinate system and each coordinate system; by finding the transformation of the respective principal axis coordinate system, the directional cosine matrix between the vector coordinate system and the inertial coordinate system can be computed. In this paper, we study how to assign prime weights to an attitude estimation algorithm for multi-sensor information fusion. In this paper, we study how to assign prime weights to an attitude estimation algorithm for multi-sensor information fusion. Through the analysis, it is found that when the observation errors of sensors are close to each other, the corresponding prime points should be assigned the same weight; while when the observation errors are different, the observation vector with high accuracy should occupy a larger assigned weight in order to get the best attitude estimation. The results of the study are valuable for the attitude estimation problem.
In this paper, using the thought of acoustical match field to establish BTMA model, and the BTMA converted into spectral estimation problem is further introduced MUSIC spectrum signal processing and fast Fourier transform processing target motion parameter estimation. Numerical simulation results show that the subspace MUSIC algorithm is not stable. When the search step size is larger, the result will fluctuate greatly near the true value, and it can not converge to the true value accurately and stably, the fast Fourier transform method can get more accurate results.
Multipath effect is one of the important factors that affect the detection performance of shipborne radar. Combined with the actual working environment of shipborne radar, a compound multipath model of specular reflection and diffuse reflection is constructed. On the basis, the theoretical expression of the compound propagation factor is derived and its Rice distribution law is verified with simulation tests. A comparative analysis is completed on the specular multipath and compound multipath effects of different types of radar under various sea conditions. Finally, suggestions on whether to consider diffuse reflection components are offered, which provide a reference for the design, use and performance evaluation of shipborne radar.
For aircraft over-the-horizon in collaborative fighting fire distribution to multiple enemy target optimization problem, it establishes the over-the-horizon synergy aircraft combat situation, on the basis of proposed a cooperative engagement firepower allocation model and algorithm. The model is based on rules of over-the-horizon attack combat aircraft as air combat, through fuzzy comprehensive evaluation expert system analysis and calculation of target threat metrics and performance metrics, and will target the randomness and uncertainty of combined with the feedback from the clustering algorithm, realize a quick and efficient search and optimization solution. Simulation results show that the firepower allocation model in cooperative air combat advantage under the premise of fighting in real time optimization, through rolling implementation in response to a combat situation changes, it can effectively solve the aircraft fire fighting planning problem together.
This paper focuses on an evaluation model of beyond-visual-range combat (BVR) effectiveness of the aircraft formation, in order to study the advantages of the typical technical performance of the fourth generation aircraft in BVR, and to visually compare the air combat results of the fourth generation aircraft and the third generation aircraft. First, the probability of the pre-emptive strike is calculated by the probability analysis method, then the probability of the missile’s destruction to the target is calculated, and finally, the air combat result is evaluated by the dynamic air combat effectiveness model. By the simulation analysis of the fourth generation aircraft formation of F-22 and F-35,against Su-33 formation in BVR scene, it shows that the model can effectively deduce the BVR results of the fourth generation aircraft and the third generation aircraft.
Based on the development of army combined-arms combat simulation experiment system, this article describes some military design ideas and methods for such systems. Military design, as an important part of system development, is a bridge between military requirements analysis and system software design. This work aims to review the system framework, system inputs, system automatic control and experiment assessment with a typical example of military design.
In order to focus on the requirements of preparing for war and strengthening equipment evaluation in operational environment, it is necessary to find out the limited value of performance off-side and fully check the measure of performance for the weaponry under the boundary conditions, therefore, tests at high sea conditions of weaponry is an important content of the tests at boundary conditions. Based on the analyzing the influence of high sea condition on the performance of weaponry, this paper puts forward the overall design idea at high sea condition and testing program design for shipborne weaponry and provides the case of design and implementation for shipborne weaponry at high sea condition, which lays the foundation of organizing the implementation of the tests at high sea condition for the range, and the purpose is to evaluate the shipborne weaponry comprehensively and find out the real performance.
It is difficult to organize and manage the combined army (aircraft) system of system warfare simulation training, because there are different kinds and mass entities in the training. The command relationship and interaction of entities are also sophistic during the exercise. Based on the real in-used exercise management system, the architecture, main functions, operation flow are summarized in the paper. The further researches are also discussed and implemented in the standard of mission scenario, quick launch of different kinds of exercises and efficiency control during exercise. The key problems of large-scale and flexible exercise organization are completely resolved. Practice of trainings proves the system is widely used and has good effect. The system creates enormous military & economic benefits, and has highlight domination and extension value.
As the different array elements can transmit orthogonal or non-orthogonal waveform, which can design the beam energy distribution in space, the co-located MIMO radar can achieve better detection and clutter suppression performance. In the presence of coherent interference, the maximization of the signal to clutter plus noise ratio (SCNR) in the worst angle, is usually applied to design the waveform. However, with uncertain-azimuth targets, the above problem presents a non-convex property, resulting in the failure of solving the optimal solution. In this paper, we apply the semi-positive definite representation lemma of non-negative trigonometric polynomials, which can transform the original problem into a semi-positive definite optimization convex problem. Simulation results show that, compared with the existing robust waveform design algorithms, the proposed robust waveform has better detection performance.
Based on wireless communication, this paper analyzes the basic principle and structural model of dual-sequence frequency hopping communication. Therefore, a simulation model of dual-sequence communication link and threshold design is built using Matlab/Simulink software. By studying the signal source emission model, the threshold design model of the communication link under the AWGN channel is simulated, and the simulated waveform and bit error rate of the model are observed: the dual-threshold structure is compared with the single-threshold structure, when the range of signal-to-noise ratio is -20 dB~0 dB, the bit error rate is reduced by 2 to 3 orders of magnitude. When the SNR is greater than -12 dB, the system bit error rate drops to zero, and the reliability of communication is good. It is a reference for further research on dual sequence frequency hopping systems.
In this paper, several key technologies in large-scale 3D scene rendering are studied, and an atmospheric scattering model based on precomputing look-up table is proposed, which can accurately simulate the following lighting effects in the atmosphere; a delay coloring method is proposed, and the rendering process is given, which has unique advantages compared with other rendering process organization methods, and it analyzes three dimensional solid model, mesh with refraction effect, the characteristics of several rendering modes of starry sky and non solid effect. The multi sampling technology is used to eliminate the sawtooth effect on the triangle boundary, and the multi sampling and detection methods are redesigned in the delayed coloring mode. Finally, the research content is applied in a certain flight simulator and a certain flight and command simulation training system, the rendering effect is lifelike, which effectively solves the problems such as obvious sawtooth and untrue illumination in engineering practice.
The shipborne common-frame launch system plays an important role in the ship’s all-round weapon attack. The decision of shipborne multi-type missiles in airspace coordination is an urgent problem to be solved. Based on the characteristics of the common-frame launch system, this paper firstly summarizes the principles of launch selection, and then, combined with the selection principles, proposes an airspace coordinated missiles selection model based on binary coding genetic algorithm. The construction method of fitness function is described in detail, and the operator value in the algorithm is improved. Finally, the feasibility of the algorithm is verified by experiments.
This paper proposes a method against deception jamming based on target power model to solve the problem of deception jamming in power domain. According to the variation regular of true target echo power with distance, this paper builds a target echo power model based on target RCS model. This model can distinguish true target and false target through threshold based on the error probability. The simulation results show the model can identify jamming with distance greater than the error distance in the thresholds which is based on the error probability 10-7, 10-10, 10-13 when targets accord with Swerling Ⅰ/Ⅱ model. When distance is greater than 25 m, three kinds of threshold all can identify deception jamming.
The paper considers the problem of robust decentralized hypothesis testing with asymptotically multiple sensors, where each sensor collects one observation. The observations obey the signal selection model with deterministic signal. It obtains the robust test function through the ε-contaminated classes, and each sensor uses the test function to make a local decision, and transmits the decision to the fusion center. In the paper, it focuses on how each sensor makes decisions, and the paper uses the asymptotic relative efficiency to analyse the asymptotic performance of the decentralized structure with a robust detection function. Specifically, it makes the decentralized structure and the centralized structure reach the same performance level, the same false alarm and power rates, then compares the number of sensors required by the decentralized structure to the number of centralized structure. The result shows that the use of robust test function can improve the performance of the decentralized structure.
Air base plays an important role in the war, and hangar is often regarded as the key target of firepower attack. This paper uses LS-DYNA program to calculate and analyze the damage effect of soft and hard PVC hangars under different equivalent explosion, and compares with the real damage effect in actual combat cases. The results show that under the explosion of 100 kg-500 kg TNT equivalent, the hangar hit directly is almost completely destroyed, and the adjacent hangars can be partially destroyed; under the same explosion conditions, the damage area of hard PVC hangar is larger than that of soft PVC hangar, but it has better protective effect on the facilities in the hangar.
In order to evaluate the influence of opening parameters of flexible net interceptor on the open net effect, based on the orthogonal experimental design theory, the range method and variance method are used to study the sensitivity due to five parameters, including projectile velocity, ejection angle, tractor mass, ejection velocity and trajectory inclination angle. The simulation results show that the developed area of the flexible net mainly depends on the ejection speed, ejection angle and the mass of the tractor; the hang time of the flexible net is negatively correlated with the mass, velocity and angle of the tractor; the effective interception area of the flexible net is positively correlated with the mass, velocity and angle of the tractor. This method is not limited by the system model, and can reduce the workload of experimental calculation and data processing. It can be effectively used for the robustness evaluation and parameter sensitivity analysis of nonlinear and high dynamic opening process control algorithm in flexible net, and provide reference for the task planning of flexible net.
Emergency response force planning has practical significance. Due to the uncertainty, complexity and particularity in emergence response, force planning is different from traditional military force planning to a great extent. Aiming at the characteristics of this kind of problems and based on data analyze and simulation, this paper gives a practical and general planning method. Firstly, it analyzes and mines the regular pattern and digital model of the occurrence, response rules and resource requirement of historical emergencies. Secondly, it builds the task capability of response force by scale of areas or districts based on the results of first step. Thirdly, it constructs emergent task set and deduces multiple options using different rules including force distribution modes. Finally, it develops simulation system, assesses and selects several suggested options by multiple indices.
In order to solve the problems in equipment maintenance support system, such as the speed of maintenance detachment maneuver route planning is not timely enough, the algorithm is complex, the required data is too much and the route planning is not smooth enough, a maneuver route planning method of maintenance detachment based on the improved artificial potential field method is proposed. This method improves and optimizes the traditional artificial potential field method by optimizing the repulsive potential field function and based on the BUG algorithm, so as to solve the problems of unreachable target and local minimum existing in the traditional artificial potential field method, and better realize the maneuver route planning of the maintenance detachment. The simulation results show that the improved artificial potential field method can realize the maneuver route planning of maintenance detachment well on the basis of solving the problem of unreachable target and local minimum value, which has a certain reference significance for the modeling and simulation of maneuver route planning of maintenance detachment in equipment maintenance support system.
The multi-level material reserve system can guarantee the force requirements accurately, quickly and efficiently. Firstly, according to the material distribution relationship among the basic storage point, the preset pre storage point and the front demand point, the material support methods such as pre storage guarantee, basic supplement and preset supplement are proposed, and the multi-objective multi-level reserve material distribution scheme optimization model based on mixed integer programming is constructed. Then, aiming at the shortcomings of early maturity, easy to fall into local optimization, parameters and constraints of optimization model are too much and so on, an improved particle swarm optimization algorithm is designed. Finally, the simulation experiment and comparative analysis are studied with an example. The experimental results verify the feasibility, effectiveness and robustness of the model and algorithm.
Under the background of exploring the theory of ammunition support, to study the current situation of foreign military ammunition demand forecast and key technologies, the research on the foreign military, especially the US military’s demand for ammunition, is launched. First, it explains the development history of the US military’s ammunition demand research, the dynamics of ammunition demand research, and the progress of key technologies. The key technologies mainly include decision support systems, war reserve ammunition demand models, theater simulation systems, etc.; secondly, it is for Russia, Britain, and other military powers. The research dynamics and key technologies of ammunition demand are introduced. Finally, this paper analyzes the main characteristics of foreign military ammunition demand forecast and its enlightenment to our military ammunition demand forecast, which provides some ideas and directions for the development of our military ammunition demand forecast theory.
First of all, this paper expounds the development route of the U.S. cooperative engagement, which is divided into four stages, lists the typical cooperative engagement projects of the U.S. army, studies and analyzes the typical cooperative engagement projects of the U.S. army since the 21st century (nifc-ca, code, mosaic war), summarizes its development route, specifically analyzes four key innovative technologies, and puts forward the enlightenment for the development of our navy equipment.
