Guidance method for attack time control

Abstract

The invention discloses a guidance method for attack time control. The guidance method comprises the following steps of establishing mathematical models of a missile and a target by considering the three-dimensional space of motion of the missile and the target; obtaining a dynamic equation of the trajectory inclination angle and the trajectory deflection angle of the missile, and obtaining a dynamic equation of the distance between the missile and the target, the angle of sight of the missile and the deflection angle of sight of the missile; on the basis, establishing a dynamic equation of the attack time error of the missile; then, separately designing the guidance law of the missile according to a pitching channel and a yaw channel, wherein the guidance law of the pitching channel is designed as an augmented proportion guidance law, the guidance law of the yaw channel is designed as a guidance law with an attack time error feedback item, and the trajectory track is adjusted to realize time control over attack on the target; and when the yaw angle is zero, adjusting the guidance law of the yaw channel to avoid singularity conditions. According to the guidance method, the attack time error is estimated, the attack time error tends to be zero through a guidance strategy, and the distance between the missile and the target tends to be zero. The guidance method for attack time control has the characteristics of clear structure and high applicability.

Description

Technical field [0001] The invention relates to a guidance method for attack time control, belonging to the field of missile guidance system design, in particular to a guidance method for controlling a missile in a three-dimensional space to complete a task according to a specified time. Background technique [0002] With the rapid development of anti-missile technology, it is increasingly difficult for missile attacks launched by traditional combat strategies to break through the enemy's defense system, and the battlefield survivability of a single missile has also been greatly reduced. In response to this problem, some experts have proposed that multiple missiles can be used in coordination to achieve a saturation attack on the target. This method can effectively restrict the enemy's anti-missile system, making it difficult to take into account the attacks of multiple missiles. A key issue in achieving saturation strikes is how to control multiple missiles to attack targets at...

AI Technical Summary

Problems solved by technology

[0003] At present, there have been some research results on the guidance law design considering the attack time constraint, but most of these works restrict the movement of the missile in one plane, and the time-controlled guidance law applicable to three-dimensional space remains to be studied

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