Double-pulse mid-guidance method and device for short-range interception

Abstract

The invention provides a double-pulse mid-guidance method and device for short-range interception, and the method comprises the steps: building a kinetic equation of an interception missile and a target missile in a sliding section, and building a missile-target relative motion velocity differential equation under a sight line coordinate system based on the kinetic equation and a coordinate transformation matrix; establishing a boosting section kinetic equation, and predicting a final position vector and a velocity vector of a boosting section; according to the end point position vector and the velocity vector at the end moment of the boosting section, on the basis of the strategy of the zero-control interception triangle, obtaining shutdown point parameters meeting the zero-control interception triangle of the sliding section; according to the shutdown point parameter, the position vector analytic expression and the boundary condition, based on the performance index function of the ignition moment of the second pulse of the interception missile, the optimal ignition moment of the second pulse of the interception missile is deduced; and obtaining a double-pulse optimal guidance instruction based on the predicted values and expected values of the speed inclination angle and the speed deflection angle at the shutdown moment of the interception missile and the second pulse optimal ignition moment of the interception missile. The interception performance can be improved.

Description

technical field [0001] The present invention relates to the technical field of guidance control, in particular, to a dual-pulse mid-range guidance method and device for short-range interception. Background technique [0002] With the continuous development of missile technology, the range of missiles and the power of warheads are constantly increasing, and the threat is also increasing. In order to reduce the damage effect of enemy missiles, it is an effective method to use anti-missile interception technology to intercept enemy missiles. In the process of anti-missile interception, in order to completely destroy the target missile, it is necessary to achieve direct collision between the interceptor missile launched by oneself and the target missile, but due to the extremely high relative speed of the two sides, guidance control with high control accuracy is required. System and better performance interceptor guidance law. [0003] In order to intercept the enemy's long-ra...

AI Technical Summary

Problems solved by technology

However, the interceptor bombs at this stage generally use solid rocket motors, which cannot realize the adjustment of thrust and working time, which limits the interception capability of interceptor bombs

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