相控阵雷达导引头捷联波束稳定算法研究

摘要

Phased array radar seeker（PARS） is an important development realm of the air-to-air missile seeker. Phased array antennas are fixed with the missile body, so strapdown beam steadying is one of key technologies needing to be solved urgently. On the basis of analyzing the characteristics of PARS, a strapdown beam steadying scheme is presented. By the missile-target sight＇s invariance principle in the inertial space, the strapdown beam steadying algorithm is derived and the corresponding algorithm adapting to phased array radar seeker is derived and obtained. The algorithmic validity is proved by computer simulation.%相控阵雷达导引头是空空导弹导引头发展的一个重要方向，由于相控阵天线与弹体固连，捷联波束稳定是其急需解决的关键技术之一。在分析相控阵雷达导引头特点的基础上，提出了捷联波束稳定的方案，利用弹目视线在惯性空间不变的原理，推导并得出适应于相控阵雷达导引头的捷联波束稳定算法，并通过计算机仿真验证了算法的有效性。