战术数据链相对导航的性能分析与仿真

Performance analysis and simulation of tactics datalink relative navigation

从编队机群相对导航原理出发提出了一种基于伪距测量卡尔曼滤波算法,对数据链在传输容量、时延等方面满足相对导航的需要给出了分析,同时分析了影响相对导航定位精度的影响因子。在假定编队机群组网内时间同步基础上,编写了编队机群相对导航的软件模块。仿真结果详细给出了几种影响相对导航的误差源对相对导航定位精度的影响情况,为发展战术数据链通信和相对导航技术提供了参考。

Based on pseudomeasurements about distance,a new Kalman filter algorithm for the relative navigation of multiple spacecraft formation flying was presented.In the process of the method,the transport capacity and time delay about datalink were analyzed.Moreover,the major error sources were discussed in detail.Under a time synchronization of formation airplane network assumption,the software module of relative navigation was programmed.Simulation results show how these error sources affect the orientation precision of relative navigation,and provide a reference for developing tactics datalink communication and relative navigation system.