摘要
低空摄影测量无人机稳定性较差,因此掌握无人机的气动参数,对于无人机的稳定性评估和改进,航空摄影参数纠正等都有重要意义。通过差分全球定位系统和EKF技术计算无人机气动参数,对于设计无人机的气动外形,计算无人机负载和摄影参数等,都有较高的应用价值。本文通过实验中DGPS差分机和光学追踪系统比较分析,计算无人机导航精度,同时以测量速度作为卡尔曼滤波器的观测值,对无人机平飞状态下固定坐标速度分量和启动参数进行评估。
Because the stability of UAV that is used for photogrammetry is not good,it is very important to master the aerodynamic parameters,which is significance for the stability and performance improvement of UAV and photogrammetry parameters adjustment.This paper described an experiment which used the DGPS equipment and EKF model to calculate the Aerodynamic parameters.
出处
《测绘与空间地理信息》
2011年第1期121-123,共3页
Geomatics & Spatial Information Technology
