关键词: 分级式分散滤波, 信息滤波, 组合导航系统

Abstract: An algorithm of decentralized information filtering with hierarchical network structures is discussed for the design of integrated navigation system. This algorithm has the advantage of less computation load in the global filter and is especially suitable for integrated navigation system, which has a high sampling rate and low feedback calibration.

Key words: decentralized estimation, information filtering, integrated navigation system