摘要： 在民航基于性能的导航(PBN)运行中，组合导航系统的导航性能决定飞机是否可以在相应导航规范要求下的航路上飞行，是实施PBN的关键。以DME/DME/IRS组合导航系统为例，提出机载组合导航系统导航性能的评估思路与方法，利用卡尔曼滤波及二元高斯分布概率计算的手段确定导航系统的定位性能，并对该方法进行仿真验证。结果证明，该方法实时性好，可以评估不同完好性要求条件下的导航定位精度，方法切实可行，便于计算。
关键词:
基于性能的导航,
卡尔曼滤波,
协方差矩阵,
导航性能
Abstract: The navigation performance of hybridized navigation system determines whether the aircraft can fly on the route of certain navigation specification when under Performance Based Navigation(PBN) operation, which is the key technology of PBN implementation. Taking DME/DME/IRS hybridization as an example, the assessment method of onboard navigation system is given out, Kalman filter and Gaussian density are used to determine the navigation performance, and simulation is done for this method. Simulation results indicate this method is good for real-time calculation, it can calculate the navigation accuracy under different integrity requirement and is useful, and the calculation is simple.
Key words:
Performance-Based Navigation(PBN),
Kalman filtering,
covariance matrix,
navigation performance
中图分类号:
孙淑光. 多传感器组合导航系统性能评估[J]. 计算机工程, 2011, 37(3): 269-271,274.
SUN Chu-Guang. Performance Assessment of Multi-sensor Hybridized Navigation System[J]. Computer Engineering, 2011, 37(3): 269-271,274.