FDIR

Based on Kalman filtering estimation algorithm, a kind of FDIR method based on hierarchic alliance of filter family is proposed.

文章在卡尔曼滤波估计算法的基础上，提出了基于递阶联合滤波器族的故障检测、隔离和重构方法。

FDIR ( Fault Detection, Isolation and Recovery) techniques are important guarantee of the reliability of spacecraft.

故障检测、隔离和重构（FDIR）技术是航天器可靠性的重要保证。

Finally, the current common Failure Detection Isolation and system Reconfiguration ( FDIR) algorithms are analyzed in detail.

最后对目前常用的故障检测、隔离和系统重构（FDIR）算法作了较详细的剖析。

And then filtering scheme and FDIR scheme are analyzed. ( 3) The model and arithmetic of HALE UAV navigation system is researched: error model of the SINS, GPS, Bei-Dou and Air-data system is established.

对高空长航时无人机组合导航系统模型与算法进行了研究：首先建立了捷联惯导系统、GPS导航系统，北斗双星系统、大气数据系统的误差模型；

Study on surface site types of quartz and calcium carbonate by FDIR spectroscopy

石英和碳酸钙表面位的FDIR谱学研究

In order to accomplish the task successfully and avoid fault propagation that may result in severe failure, it is necessary to build up an on-line fault diagnosis system to realize the real-time Fault Detection, Diagnosis, and Recovery ( FDIR).

为保障任务完成，需建立起空间电源系统在线故障诊断系统，实现在线故障检测、诊断和修复（FDIR），防止故障传播和灾难性事故发生。