Study on Infrared Air-to-Air Missile Guidance Accuracy Affected by Complicated Environment

复杂环境对红外空空导弹制导精度影响规律研究

¹ School of Astronautics, Northwestern Polytechnical University, Xi’an, 710072, China
² School of Mechanical Engineering, Northwestern Polytechnical University, Xi’an, 710072, China

Received: 27 May 2018

Abstract

The guidance accuracy of an infrared air-to-air missile is affected by various factors such as target maneuver, interference, and the natural environment. The complicated confrontational environment posed by target maneuver and decoy launch is considered in this article. The more practical adjoint analysis model for the influence of target maneuver and decoy launch on missile guidance accuracy is established by analyzing the jamming process, motion characteristics, and the influence mechanism on the guidance system of point source decoy. By using the adjoint method, the barrel roll maneuver angular rate, the numble of simultaneous decoy launch, the ignition time, the interval between launches and the strategy influence on the miss distance of the missile are analyzed in detail, which will provide strategic references for the aircraft to fight against the infrared air-to-air missiles.

摘要

红外空空导弹制导精度受目标机动、干扰以及自然环境等多种因素影响。考虑目标机动和投放诱饵弹所构成的复杂对抗环境，通过分析点源诱饵弹干扰过程、运动特性以及对制导系统的作用机理，建立了更符合实际情况的目标机动和诱饵投放对导弹制导精度影响的伴随分析模型。利用伴随法，分析了目标机桶滚角速率以及诱饵弹的齐投数量、起燃时间、投放间隔与策略对导弹脱靶量的影响规律，为战斗机采取对抗红外空空导弹策略提供参考。