Guidance information processing method aiming at seeker loss-of-lock conditions

Abstract

The invention discloses a guidance information processing method aiming at seeker loss-of-lock conditions. The guidance information processing method comprises the following steps of: calculating a theoretical line-of-sight rate according to the position and speed information of a guided missile, and employing different switching methods between the actually measured line-of-sight rate and the theoretical line-of-sight rate under the condition that the seeker loses a target according to different distances between the guided missile and the target; and calculating a theoretical frame angle according to the position and attitude angle information of the guided missile, and presetting the frame angle of the seeker under the condition that the seeker loses the target.

Description

technical field [0001] Design of low-cost tactical missile high-precision guidance and control system. Background technique [0002] At present, the high performance of the missile is basically achieved through the high performance of the seeker, inertial navigation equipment and rudder system. Among them, the seeker determines the performance of the missile to a large extent, but for low-cost missiles, the lack of seeker performance can only be compensated to a certain extent by advanced guidance and control algorithms. These deficiencies are mainly reflected in the large noise of line-of-sight angular velocity measurement, the high probability of the seeker missing the target, and the low isolation from the projectile. If the guidance control algorithm cannot improve the above unfavorable factors to a certain extent, it will eventually affect the missile's hit accuracy. [0003] The advanced guidance control algorithm should be able to compensate for the lack of hardware...

AI Technical Summary

Problems solved by technology

[0004] The technology of the present invention solves the problem: in order to overcome the problem that the existing low-cost tactical missile cannot hit the target under the situation that the seeker loses the target, a kind of guidance information processing method for the seeker loss of lock situation is provided, the method can Reduced miss volume in case seeker misses target

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