摘要
提出了一种民用飞机组合导航实际导航性能计算方法,通过提取组合导航卡尔曼滤波器的误差协方差矩阵,并对水平位置误差进行近似拟合,获得95%的概率误差圆半径,即为组合导航实际导航性能。该方法计算过程简单,易于实现,具有较强实用价值。
An ANP calculation algorithm is introduced for integrated navigation of civil aircrafts.Through extracting the error covariance matrix of the integrated navigation kalman filter and approximately fitting the lateral position error,a circle radius can be achieved with a 95%probability error.This is the introduced ANP of the integrated navigation.Such an algorithm is simple,easy to implement and thus has a good practical value.
作者
宁亚锋
李文辉
谢轶俊
喻杰
NING Ya-feng;LI Wen-hui;XIE Yi-jun(YU jie2(1.Shaanxi Aircraft Industry Group Corporation of Aviation Industry Corporation of China,Hanzhong 723213,China;China National Aeronautical Radio Electronics Research Institute,Shanghai 200241,China)
出处
《航空电子技术》
2020年第2期50-54,共5页
Avionics Technology
关键词
组合导航
实际导航性能
卡尔曼滤波
协方差矩阵
integrated navigation
actual navigation performance
Kalman filter
covariance matrix
