Active defensive missile optimal launching time searching method adopting predictive guidance

Abstract

The invention relates to the technical field of aircraft guidance and control, and discloses an active defensive missile optimal launching time searching method adopting predictive guidance. The active defensive missile optimal launching time searching method adopting predictive guidance comprises the steps that an active defensive three-body confronting kinematics model is built, the flying trajectory of an incoming missile under a known guidance law is solved according to the flying states of a carrier aircraft and the incoming missile, predictive interception point sequences at different defensive missile launching times are calculated, predictive heading deviation angle sequences formed by a defensive missile and predictive interception points are calculated, and the defensive missileoptimal launching time is searched. According to the method, the defensive missile optimal launching time in the active defensive problem is obtained in a searching manner, the intelligent launching capability is provided for the carrier aircraft, and compared with the non-optimal launching time condition, the guidance overload of the defensive missile is optimal, the guidance energy loss is lowest, the performance requirements for the defensive missile are reduced, and then the survival probability of the carrier aircraft is increased.

Description

technical field [0001] The invention relates to the technical field of aircraft guidance and control, in particular to a search method for optimal launch timing of active defense missiles using predictive guidance. Background technique [0002] In air combat, combat aircraft are often locked by enemy air-to-air missiles and surface-to-air missiles as the primary attack target. The traditional response methods are passive defense methods such as maneuvering and evasion, and dropping decoys. However, with the rapid development of missile technology such as seeker target recognition, traditional passive evasion methods are difficult to guarantee the safety of aircraft. And when the aircraft is locked as an attack target by an incoming missile, a defensive missile can be launched to quickly intercept the incoming missile, thereby ensuring the safety of the aircraft itself. The three-body attack-defense problem of active defense is constituted by the aircraft (carrier aircraft) ...

AI Technical Summary

Problems solved by technology

Launching defensive missiles too early will lead to more energy consumption in the guidance process and affect the success rate of interception; launching defensive missiles too late may cause the carrier aircraft to be unable to avoid the explosion area and cause losses

Choosing the best time to intelligently launch defensive missiles will effectively reduce the difficulty of guiding defensive missiles and greatly reduce the demand for guidance overload of defensive missiles. Research

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