SINS/GPS组合导航和末端寻的复合制导半实物仿真

针对采用SINS/GPS组合导航及末端寻的复合制导体制的制导弹药,为检验组合导航系统和制导控制系统的工作性能,设计了半实物仿真系统框架结构.设计半实物仿真时序,采用基于频率调度(FBS)机制,实现仿真的实时性和同步性.探讨并解决了仿真中多CPU时钟同步问题.仿真结果表明,捷联惯导算法正确,解算时延较小,GPS修正效果良好,组合导航系统可顺利完成中末制导交班;制导控制系统设计合理,对于静止和机动目标,落点射击精度和落角均满足设计要求.

Hardware-in-the-Loop Simulation for Combined Guidance with SINS/GPS and Homing Head

Based on combined guided munition with SINS/GPS and homing head,the framework of hardware-in-the-loop simulation system(HILS) is designed to test the integrated navigation system and guidance and control system.The scheduler of HILS is designed,adopting the mechanism of frequency based scheduler(FBS) to ensure real-time and synchronous performance.The synchronization problem of multiple CPUs is discussed and solved.Simulations indicate that the algorithm of the navigation computer is correct and the computation delay inconsiderable,the correcting effect of GPS is satisfactory,the precision of SINS/GPS can meet the requirements of handover.The guidance and control system is properly designed and can meet the accuracy and attack angle requirement for still or mobile target.