基于伪卫星组网系统的定位精度研究

The Research on Positioning Accuracy Based on Pseudolite System

目前国内外弹药制导方式普遍采用GPS、惯性导航以及两者的复合制导方式,提出了一种基于伪卫星组网技术的定位制导方式,利用作战区域布设的4个伪卫星接收机通过接收由弹载信号发射机发射的信号,完成弹药的制导控制。与普遍采用的制导方式相比,该制导方式具有完全的自主性及更高的定位精度。仿真结果表明,在作战区域弹药的定位精度可以控制在1.5 m范围内,较好地满足对高速高旋弹药定位精度要求。

The GPS and INS are both common guidence methods of ammunition at home and aboard presently, even composite guidenee method sometimes. The paper proposed a guidence method based on pseudolite system in battle field, using four pseudolite receivers through receiving singal produced by a transmitter in ammunition to achieve the goal of guidence and control. Compared with common guidence methods, the method is completely independent and higher in positioning accuracy. Simulation result shows the accuracy can be controled in the range of 1.5 metres, meeting the predetermined positioning accuracy of the spinning projectile.