基于信息融合的进场段飞行技术误差估计仿真

Simulation of Flight Technical Error Estimating in Approach Based on Information Fusion

飞行技术误差的估计精度对导航精度有重要影响,为实现高精度进场着陆操作,需要对飞行技术误差进行精确估计。为此研究了飞行技术误差估计问题,提出基于联邦滤波的信息融合算法,通过对多源传感器信号进行时空配准联邦滤波,实现精度高,完好性强的位置估计,并以此为基础实现飞行技术误差的估计。为了验证提出估计方法的有效性,构建了基于ADS/GPS/ILS/INS等导航源的飞机进场段仿真模型并进行仿真,对飞行技术误差进行了估计,结果表明,提出的方法能够有效实现飞行技术误差的估计。

The estimation accuracy of flight technical error has an important impact on the navigation accuracy. In order to achieve high-precision approach and landing operation, it is necessary to accurately estimate the flight technical error. For this reason, an estimation method of flight technical error problem was studied, and a multi-source information fusion algorithm based on federated filter was proposed. After temporal-spatial matching, signal smoothing and federal filter of multi-source sensor signals, the position estimation with high precision and good integrity was realized. Based on this, the estimation of flight technical error was realized. In order to verify this, a simulation model containing ADS/GPS/ILS/INS and approaching model was established. Based on the simulation model, the flight technical error was estimated. The result shows that the flight technical error can be estimated by the proposed method.