摘要
针对卫星/捷联惯导组合导航系统中卫星信号易受干扰的问题,为提高导航的精度和可靠性,提出了一种新的基于卫星和平流层飞艇的区域导航系统。根据区域导航平台,利用组合导航的模式,建立了同步卫星/捷联惯导/平流层飞艇组合导航的状态方程和量测方程,选取自适应联邦滤波算法作为组合导航的信息融合算法,形成联合滤波器,要以弥补卫星导航中信号易受影响的问题。最后设计开发了区域导航仿真系统,通过数字仿真表明,与卫星/捷联惯导组合导航系统相比,区域导航系统具有较高的导航精度和较好的可靠性。
A regional navigation system involved in satellites and stratospheric airships was proposed according to the problem of satellite information easily disturbed in navigation system of satellites and SINS. The model of the regional navigation system, which is composed of satellites, SINS and stratospheric airships, is built including the state equations and the measurement equations based on the mode of integrated navigation system. At the same time, the adaptive federated filter algorithm is applied as information fusion algorithm to obtain federated filter in the regional navigation system and the problem of satellite communications easily disturbed is overcomed. Finally the simulation system of regional navigation system is founded, and the simulation results indicate that the regional navigation system can complete navigation tasks more accurately and reliably than integrated navigation system of satellites and SINS.
出处
《计算机仿真》
CSCD
北大核心
2010年第6期67-69,78,共4页
Computer Simulation
关键词
区域导航
平流层飞艇
卫星导航
联邦滤波
Regional navigation
Stratospheric airship
Satellites navigation
Federated filter
