【摘要】 针对一般组合导航系统的缺陷 ,本文提出飞行力学导航法这一新的组合导航概念并具体设计了 GPS/运动方程组合方案。飞行力学导航法是一种在不增加硬件设备的情况下 ,单纯用软件(运动方程 )明显改善原导航系统性能的导航方案。本文给出了飞行力学导航法的定义 ,并分析了其适用范围和特点。分析了传统运动方程建模中的各种误差源 ,推导了包含误差源在内的飞行器扰动方程 ,并得出其解析解。建立了 GPS/运动方程组合系统状态方程和观测方程 ,并进行仿真 ,验证了其可行性。仿真结果表明 ,GPS/运动方程组合系统导航精度高于 GPS,而且较单独 GPS增加了信息冗余度。更多还原

【Abstract】 In order to overcome the disadvantags of normal integrated navigation system, the paper gives a new integrated navigation scheme--Flight Dynamics Navigation Method(FDN), and designs the GPS/Equations of Motion (EM) integrated navigation system. FDN uses the software to improve navigation function of the original system, without any other navigation hardware. Its idea is put forward in this paper, and its scope and characteristics are analyzed. The modeling errors of the traditional Equations of Motion are analyzed. The disturbance equations which include the modeling errors and its analytic solutions are deduced. The equations of the state and observation of GPS/EM are deduced. The numerical simulation results of GPS/EM show the feasibility of GPS/EM system and reveal that the navigation precision of GPS/EM is higher than the GPS′s. The GPS/EM has more redundancy than the original system.更多还原