联合直接攻击弹药JDAM传递对准技术分析

Analysis of Transfer Alignment Technique ofJoint Direct Attack Munition (JDAM)

联合直接攻击弹药JDAM系统是目前精确武器制导技术的代表。具有自主式、高精度、低成本、全天候的特点;在战场上发挥了重大的作用。利用机载主惯导信息对武器子惯导实施的传递对准技术是JDAM制导技术中的关键技术。文中在对JDAM系统组成、特点、精度分析的基础上,力图从技术实现的角度对JDAM传递对准技术中的算法选择、时间标记误差、强振动环境检测等重点问题进行深入研究;JDAM传递对准设计中所遇技术问题的解决思路对同类武器的研制可以有较好的技术参考。

The Joint Direct Attack Munition (JDAM) is a low-cost guidance kit produced by Boeing that converts existing unguided free-fall bombs into accurately guided 'smart' weapons. Possessing several characters, i.e. affordable, accurate, adverse weather and autonomous, it has played a very important role in modern battlefield. The constitution, character and accuracy analysis about JDAM are discussed in this paper. The paper mainly put its attention on the key transfer alignment techniques employed in JDAM, including the transfer alignment algorithm, time bias estimation, vibration detect etc. The solving method of JDAM for transfer alignment is a good reference for the development of the same kind of weapon in our country.