INS/GPS实时仿真系统研究

【作者】 江泽；

【导师】 赵忠；

【作者基本信息】 西北工业大学 ， 导航、制导与控制， 2003， 硕士

【摘要】 单一的导航系统很难满足现代飞机、导弹导航制导的精度、可靠性以及可用性等方面的要求。如果能将高精度的GPS和高可靠的INS综合，则能构成一种比较理想的导航系统。利用现代仿真技术开发在空间、时间上都与真实系统十分相似的INS／GPS组合导航仿真器，对于研制满足要求的INS／GPS组合导航系统具有十分重要的意义。 论文课题主要是：为某国防科研项目“INS／GPS组合导航仿真器研制”研制“INS导航仿真子系统”。论文以此为核心展开：首先详细讨论了陀螺和加速度计的数学模型、指北式捷联惯性导航系统初始对准和导航解算的算法、飞行轨迹数据生成算法、INS／GPS组合导航算法；然后利用VISUAL C++6.0开发出飞行轨迹数据生成系统、捷联惯性导航实时仿真系统。仿真系统综合了惯性器件实时仿真、捷联惯性导航实时仿真，并具备器件性能参数设置、仿真数据动态实时显示和输出、实时存盘、数据回放功能。测试结果显示：仿真系统工作稳定可靠，仿真结果令人满意。更多还原

【Abstract】 The single navigation can hardly to meet the requirement of controlling andguiding modern airplane or missile, for example: the precision, the reliability and the applicability. If the high-precision GPS and high-reliability INS can be combined, a kind of more ideal navigation system will be constituted. To develop the INS/GPS integrated navigation simulator, which is similar to the real-system at the aspects of time and structure by using modern simulating technology, is significantly important for studying INS/GPS integrated navigation system which can fulfill the requirement.This thesis is mainly about studying "INS navigation simulating subsystem" for "the studying of "INS/GPS integrated navigation simulator". Based on this main idea, first the thesis discusses the mathematics model of gyro and accelemeter, the initial alignment of north-pointed strapdown inertial navigation system, the method of calculation navigation, the method of generating flight orbit data, the method of INS/GPS integrated navigation in detail. Then the thesis develops the system generating flight orbit data and the system of real-time simulating strapdown inertial navigation with VC++6.0. The simulating system combines the inertial sensor real-time simulator and strapdown inertial navigation real-time simulator. Its functions are: the setup of sensor performance parameter, the simulating data dynamic and real-time display and output, real-time save, simulating data to. disk, the function of data show-back. The result shows that the simulating system is steady and reliable and the simulating result is satisfying.更多还原