基于组合导航的布撒器飞行中风场测量仿真  

Wind Field Measurement Simulation in Dispenser Flight Based on the Integrated Navigation System

作　　者：李洪钶 张斌[1] 赵雨[1] 

机构地区：[1]空军工程大学航空航天工程学院,陕西西安710038

出　　处：《计算机仿真》2015年第8期63-67,共5页Computer Simulation

摘　　要：在机载布撒器抛撒精度的优化控制中,为了修正风干扰引起的布撒器弹道偏差,需要准确实时地测量风场的信息。在无任何测风设备的条件下,研究布撒器的运动模型,在布撒器稳态飞行过程中利用捷联惯导系统(SINS)测量布撒器的速度、位置及姿态角,并通过全球定位系统(GPS)对捷联惯导的测量误差进行定时修正,最后根据它们之间的矢量关系提出了一种采用组合导航系统的测风方法,分析了影响测风精度的因素。仿真结果表明,仅利用组合导航系统能够实时地进行布撒器风场测量,并满足一定的精度要求,提高组合导航的测速与定位精度可以提高测风的精度。In order to reduce the trajectory error of dispenser caused by wind disturbance, it is need to measure wind field information accurately and real time. Without any wind equipment, the movement model of dispensers is studied, the speed, position and attitude angle of dispensers are measured by using the strap - down inertial naviga- tion system （SINS） in the process of dispensers steady - state flight, then the measurement error of SINS is corrected through the global positioning system （GPS）, and a wind measurement method is proposed based on the integrated navigation system. According to the vector relation between them, the factors which affect the precision of wind are analysed. Simulation results show that the integrated navigation system can measure dispenser wind field real time, meet a certain precision, improve the speed measuring precision and positioning precision.

关 键 词：布撒器 风场测量 组合导航系统 

分 类 号：V249[航空宇航科学与技术—飞行器设计]