Method for estimating target motion information based on seeker measurement information

Abstract

The invention provides a method for estimating target motion information based on seeker measurement information. The method comprises the following steps: step 1: obtaining seeker measurement information; step 2. designing a digital filter to perform filtering processing on the seeker measurement information; 3. solving relative position and speed information of a guided missile and a target; step 4. solving an absolute position and an absolute speed of the target according to a coordinate transformation relationship, and completing the estimation of the target motion information. The methodprovided by the invention is applied to the field of cooperative detection and guidance of tactical weapons, the method is characterized by solving the problem of relatively low precision of estimating the motion of the target based on detection information of ground radars and airborne early warning aircrafts of the tactical weapons during target detection, identification or cooperative combat, and accurate target motion information is provided for the guidance of the tactical weapons.

Description

technical field [0001] The invention relates to the technical field of guidance and control, in particular to a method for estimating target motion information based on seeker measurement information. Background technique [0002] Obtaining accurate target movement information is one of the important conditions for the precise guidance of tactical weapons. It can reduce the amount of missile misses, ensure that missiles hit the target, and provide favorable conditions for the maneuvering of missiles and the execution of combat tasks. [0003] In modern warfare, the coordinated operation of tactical weapons has been extensively studied, and with the complexity of the combat environment and the improvement of target mobility, how to obtain accurate target movement information for tactical weapons during combat has become an important content to ensure the realization of tasks . [0004] In the past, the acquisition of target movement information generally provided limited tar...

AI Technical Summary

Problems solved by technology

[0005] The main defect of the above method is that because the ground radar or early warning aircraft can only periodically provide limited target information for the missile, there will be periodic target movement blind spots, and the target movement can only be predicted based on the information of the previous cycle. Severe or large-scale maneuvering of the target, the accuracy of forecast information has dropped significantly

At the same time, the calculation of space-time registration is more complicated, and with the increase of missile flight time and flight distance, the accuracy of time-space registration will also decrease, which will greatly affect the estimation accuracy of target motion information

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