Robust and optimized ballistic design method for direct attack of self-seeking anti-tank missiles

Abstract

The invention relates to a trajectory design and optimization method, in particular to a self-seeking anti-tank missile direct attack robust optimization trajectory design method, which belongs to the technical field of missile trajectory design. The present invention at first designs a kind of robust direct-shooting ballistic form of the self-seeking anti-tank missile, and its program control section adopts the attitude instruction form θ c (t)=a-cq 2 (or θ c = θ 0 -cq); at line of sight angle q 0 As the starting control condition of the final proportional guidance; the coefficient of the final proportional guidance is N. Then, the maximum and minimum optimization method combined with the genetic algorithm optimization method is used to optimize the program-controlled section parameters, start-up conditions, and guidance coefficients in the robust trajectory, and determine a self-seeking robust global optimal trajectory for anti-tank missiles , the optimized trajectory has strong robustness and optimality, which can enable the weapon system to carry out precise strikes without precise ranging information under various constraints and initial disturbances, which is convenient for combat use and can be widely used in The self-seeking anti-tank missile ballistic design has important military application prospects.

Description

technical field [0001] The invention relates to a trajectory design and optimization method, in particular to a self-seeking anti-tank missile direct attack robust optimization trajectory design method, which belongs to the technical field of missile trajectory design. Background technique [0002] The image self-seeking anti-tank missile of "shoot it and leave it alone" is an important development direction of precision guided weapons in the future, and its ballistic mode is generally divided into two modes: direct fire and curved fire. The present invention mainly provides a global robust optimization ballistic design method for its direct attack mode. [0003] At present, the general guidance and control mode of the ground-launched image self-seeking anti-tank missile is: the image seeker locks the target before launch, the missile launches, and first climbs according to a certain program-controlled ballistic trajectory, and then switches to proportional guidance after th...

AI Technical Summary

Problems solved by technology

[0006] At present, when designing ballistics in China, the program-controlled section and the proportional guidance section are generally designed separately and independently, which leads to the lack of optimality and robustness of the ballistic trajectory; when designing the program-controlled trajectory, the pitch angle program with time as the parameter variable is often used control scheme, and the designed program-controlled trajectory is mostly segmented control, the factor of artificial trial and error is relatively large, the robustness, adaptability and optimality of the trajectory are poor, when the initial disturbance of the missile is large, the aerodynamic parameters of the missile body fluctuate and other interference factors When it is added, it may cause the missile to miss the target; secondly, when the program control section is transferred to the proportional guidance section, the projectile-to-eye distance is required to determine the control conditions for switching to the proportional guidance, which is not convenient for combat use

[0007] In addition, some people also use parameter optimization methods in the trajectory design process. Although the designed trajectory has the best strike performance under certain initial and interference conditions, once the conditions are changed, the amount of missile misses will increase. , or even miss the target, this is because in the trajectory design, only the optimality is paid attention to, while the more important robustness requirements in the trajectory design are ignored

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