Rapid Estimation Method for Miss Distance of Rocket Projectile Based on Coupled Seeker-Projectile Model and AdjointGuidance System

doi:10.12382/bgxb.2021.0798

Abstract

Abstract: Rapidly estimating the miss distance of guidance system during the preliminary seeker design is an effective way to shorten rocket projectile development schedule. Based on the principles of rigid body kinematics and dynamics, the coupled mathematical model of a pitch-yaw two-frame stable platform seeker is constructed, which mainly considers the seeker-projectile coupling effect. Then, a rapid estimation method for the miss distance of guidance systems based on the adjoint theory is proposed. This method can quickly estimate the miss distance of a rocket projectile, and with the help of the coupled seeker model, real flight experimental data and simple guidance system parameters. the design parameters during the preliminary seeker development can be updated, thus reducing design iteration. The simulation results show that the coupled seeker model has high accuracy, and the miss distance can be rapidly estimated with the adjoint method, providing insights into the preliminary seeker and guidance system design.

Key words: guidedrocketprojectile, rapidestimationofmissdistance, coupledseeker-projectilemodel, adjointguidancesystem

CLC Number:

TJ765.3

CUI Mengxi，HAO Hongxu, WANG Xinxing，MENG Liangfei，MAO Yutian，WAN Ke，LIU Yunzhen，ZHANG Yan. Rapid Estimation Method for Miss Distance of Rocket Projectile Based on Coupled Seeker-Projectile Model and AdjointGuidance System[J]. Acta Armamentarii, 2022, 43(10): 2554-2564.

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