Parameter perturbation self-adaptive vertical attack guidance method for guidance rocket projectile

Abstract

The invention discloses a parameter perturbation self-adaptive vertical attack guidance method for a guidance rocket projectile. By means of the method, the requirement of the terminal guidance segment of the rocket projectile with the vertical attack requirement for the overload capacity can be reduced easily. After the rocket projectile flies over the apex of a trajectory, the manners of numerical integration and the like are adopted, the position of the projection of the projectile body mass center of the projectile is calculated after the projectile flies under the standard full effectiveattack angle in a pressing manner to meet the vertical trajectory condition, the controlled miss distance is obtained through calculation, the estimated controlled miss distance is utilized in the first stage to achieve feedback control, the command of a steering engine is adjusted in real time, gliding range extending is achieved when the projectile is father away from a target, the projectile israpidly pressed to form a vertical trajectory when close to the target, and meanwhile flight errors generated by disturbance are further eliminated. After the vertical trajectory is formed by the projectile, the projectile is converted into terminal guidance, and the projectile is guided according to the proportion to attack the target.

Description

technical field [0001] The invention relates to the technical field of ammunition guidance control, in particular to a parameter perturbation-based self-adaptive guided rocket vertical attack guidance method and adjustment strategy, which can be applied to guided rockets, guided shells, guided missiles, guided missiles and other guided weapons and equipment . Background technique [0002] For most types of warheads, the falling angle is an important factor affecting the power of the warhead. Taking the anti-personnel blasting warhead as an example, since the fragments of the warhead are scattered mainly near the normal plane of the projectile axis, the falling angle When the warhead fragments are small, most of the warhead fragments fly to the ground and sky at close range, and the power of the warhead is greatly affected. Taking the penetrating warhead as an example again, a large drop angle is conducive to the penetrating effect of the warhead. In the case of a small drop...

AI Technical Summary

Problems solved by technology

However, in actual engineering design, the influence of parameter perturbation and external interference on the guidance link must be considered

If the guidance law cannot eliminate the above-mentioned effects in time, it will cause an increase in the final off-target amount, and even the guidance law will not converge.

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