基于BDS/SINS的空投翼伞降落轨迹还原

Parafoil Trajectory Reduction Based On BDS/SINS

针对空投中翼伞运动速度过快,不能单独通过BDS(中国北斗卫星导航系统)绘制出空投轨迹的问题,提出了一种基于BDS、SINS(捷联式惯性导航系统)组合还原运动轨迹的方法。利用SINS数据更新速度快、短时间内精度高,BDS导航精度长时间稳定没有累积误差的特点,以松耦合的方式还原运动轨迹,并利用翼伞空投实验进行验证。结果表明,该方法比较准确地还原翼伞运动轨迹。

Because the parafoil moves too fast while dropping,BeiDou navigation satellite system can not be only used to draw its trajectory accurately.This paper proposes a method,in which BDS is combined with SINS to reduce the parafoil dropping trajectory.BDS is characteristic of long-term accuracy with no accumulated error and SINS is characteristic of all autonomy and high frequency.This method can be used to more accurately reduce the parafoil dropping trajectory.