Missile control method based on to-ground perpendicular strike guidance law

Abstract

The invention relates to a missile control method based on a to-ground perpendicular strike guidance law. The method comprises the steps that (1) a missile and target relative motion mathematical model is established, the aim of constraining the missile strike angle can be indirectly achieved by assigning the missile and target relative motion speed, and an optimum control model containing strikeangle constraining is established; (2) a Schwartz inequality method is used for deriving a solution of an optimal control problem, that is, a relation expression of a missile overload command, the estimated strike time and the missile and target relative speed is obtained; and (3) the missile and target relative speed and the missile and target relative distance are obtained through missile-bornedetection equipment, a missile-borne computer is used for calculating the missile and target remaining flight time, the missile overload command is formed by using the guidance law, and a missile is manipulated to strike the target with a vertical attack angle. The guidance law can make the missile strike the target vertically, the characteristics such as the simple structure, easy realization andthe optimal result are achieved, and the damage effect on the to-ground target can be improved.

Description

technical field [0001] The invention relates to the field of missile navigation, guidance and control, in particular to a guidance law for vertical strike on the ground and a realization method thereof. Background technique [0002] With the development of the threat, the damage effect of the missile on some targets is not only related to the amount of misses, but also related to the attack angle of the missile when it hits. For example, anti-underground targets hope to attack the top vertically to achieve the maximum damage effect; anti-tank missiles hope to attack the weak top armor of tanks and so on. The requirements for the guidance law in these cases are: not only to meet zero misses, but also to achieve the function of vertical strike to the ground. [0003] Although the traditional proportional guiding law is simple in principle and easy to implement, it cannot constrain the terminal attack angle. We need a more effective guiding law to meet the above requirements. ...

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Problems solved by technology

[0003] Although the traditional proportional guidance law is simple in principle and easy to implement, it ca

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