航弹SINS/GPS组合导航系统半实物仿真试验设计

Design of a Hardware-in-the-Loop Simulation System for SINS/GPS of Air Ammunition

针对某型远程航空弹药SINS/GPS组合导航系统的组成,设计了SINS/GPS组合导航的半实物仿真试验框架结构,探讨了在试验过程中多机时钟同步的问题,检验了捷联惯导系统导航计算机的解算性能和GPS信息的修正效果.试验结果表明,捷联惯导系统的算法正确,解算精度和解算时延满足控制系统的要求,GPS信息修正效果良好,SINS/GPS组合导航系统可以应用到航空弹药的制导与控制系统中.

Based on the structure of the SINS/GPS integrated navigation system used in air ammunition, the paper gives the design of framework for the hardware-in-the-loop simulation system, probes at the problem of clock synchronization for the machine, tests the computational performance of navigational computer in SINS and the correcting effect of GPS message. Simulations are performed to indicate that the algorithm of the navigation computer is correct; that precision and delay in computation can meet the requirements of the control system and that the correcting effect of GPS message is satisfactory. SINS/GPS integrated navigation system can be applied to the control and guidance systems in air ammunition.