捷联被动导引干涉仪测向技术仿真分析

Simulation Analysis on Strapdown Passive Navigation Interferometer Direction-finding Technique

目前的反辐射武器多采用基于陀螺稳定平台的方式对目标进行跟踪导引,这种导引方式受到了弹体前端空间的限制,难以保证低频段导引头的测向精度。为了解决这个问题,研究了捷联被动导引干涉仪测向技术。对捷联被动导引原理进行了论述,介绍了干涉仪测向算法和相关干涉仪测向算法,并对方位和俯仰天线阵进行了布阵设计和测向精度的仿真,仿真结果表明测向精度满足反辐射武器制导要求。

The anti-radiation weapons now almost use gyro stabilized platform mode to track and guide the target, this guide mode is limited by the missile anterior space and can＇t assure direction-finding accuracy of the low frequency band seeker. The strapdown anti-radiation navigation interferometer direction-finding technique is studied in order to resolve the problem. The principle of strapdown anti-radiation navigation and interferometer direction-finding is described, and the azimuth and pitching antenna array distribution is designed. The simulation is performed to test the direction-finding accuracy, and the simulation result shows that the direction-finding accuracy can satisfy the need of anti-radiation weapon navigation.