The Mathematical Model Study on Direct Sighting and Multi-Firing of the Launching Vehicle

LEI Wei; SUI Yue; JIANG Xiaowang; ZHANG Jianxin

doi:10.15892/j.cnki.djzdxb.2025.06.032

Journal of Projectiles, Rockets, Missiles and Guidance >

2025 , Vol. 45 >Issue 6: 1219 - 1224

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2025.06.032

Academic article

The Mathematical Model Study on Direct Sighting and Multi-Firing of the Launching Vehicle

LEI Wei ^,¹ ,
SUI Yue ² ,
JIANG Xiaowang ¹ ,
ZHANG Jianxin ^,¹^,^*

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¹ China North Industries Group Jiangshan Heavy Industries Research Institute Co.LTD,Xiangyang 441000,Hubei,China
² Wuhan Military Agency in Shiyan District Military Office,Shiyan 442000,Hubei,China

Received date: 2025-02-21

Online published: 2026-01-24

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Abstract

The launch vehicle adopts direct aiming to obtain target information and automatically adjusts the gun,so that the launch tube of the launch device is turned to aim at the target for shooting.Aiming at the problem of target shooting accuracy with continuous aiming and adjustment of the launch vehicle,the calculation method of gun adjustmen for direct aiming and multi-firing mode t was proposed.The position relationship between the vehicle body and the target was analyzed through target position relationship conversion.The mathematical models based on direct aiming of photoelectric sighting was constructed in multiple firing modes,and the shooting azimuth and shooting angle adjustment value of the launch tube of the launch vehicle to the target is solved; The method and correction values for correcting ballistic flight errors was proposed,and the influence of the tilt of the launch vehicle’s ear axis on the accuracy of gun adjustment was analyzed.The aiming and accuracy measurement tests of the launch vehicle on multiple target points and multi-firing was conducted through application of the mathematical model.The results indicate that the launch vehicle achieved aiming accuracy of 1 mil altitude and 1.5 mil directional accuracy value by the application of the mathematical model for direct sighting and multi-firing.And.meeting the requirements of the launch vehicle in actual shooting missions.

Key words： direct aiming; multi-firing; the mathematical model; trajectory correction

Cite this article

LEI Wei , SUI Yue , JIANG Xiaowang , ZHANG Jianxin . The Mathematical Model Study on Direct Sighting and Multi-Firing of the Launching Vehicle[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2025 , 45(6) : 1219 -1224 . DOI: 10.15892/j.cnki.djzdxb.2025.06.032

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