Composite guidance method based on sight angle information and front guidance information

Abstract

The invention relates to a composite guidance method based on sight angle information and front guidance information, and belongs to the technical field of aircraft guidance. The method is characterized by comprising: measuring sight angle information of relative movement of an aircraft and a target according to an aircraft seeker, comparing with course angle information measured by a gyroscope toobtain an attitude error signal; setting a preposed angle and comparing the preposed angle with a course angle measured by a gyroscope to obtain a preposed error signal; after the two signals are synthesized, forming proportional-integral type pre-guide information through proportional-integral operation, finally, linearly superposing the proportional-integral type pre-guide signal and sight angle information to form a final guide law, driving an aircraft course angle tracking loop, and achieving accurate guide of an aircraft to a target. The problem that in the prior art, the two advantagesof front guiding and sight angle guiding cannot be considered at the same time is solved.

Description

technical field [0001] The invention belongs to the field of guidance and control of unmanned aerial vehicles, and in particular relates to a method for directly using line-of-sight angle information to participate in guidance to realize accurate rendezvous of an aircraft to a target. Background technique [0002] Guidance and guidance law design problems are widely used in military and civilian fields, which can solve the problem of rendezvous between aircraft and fixed or moving targets in space, the problem of trajectory tracking and rendezvous between aircraft and virtual targets in space, and the problem of aircraft's rendezvous with moving or fixed targets on the ground or sea. The precision strike problem. Traditional guidance methods widely use line-of-sight angular velocity to achieve proportional guidance, or use the error between line-of-sight angle and attitude angle to achieve front-end guidance, or an improved deformation of the above two. [0003] Although th...

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Problems solved by technology

[0006] The purpose of this disclosure is to provide a composite guidance method based on line-of-sight angle information and front guidance information, and then at least to a certain extent overcome the limitations and defects of related technologies in the prior art. The problem that the advantages of both corner guides cannot be taken into account

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