An innovative transfer alignment method based on federated filter for airborne distributed POS

作者：Gong, Xiaolin^*; Zhang, Jianxu

来源：Measurement, 2016, 86: 165-181.

DOI：10.1016/j.measurement.2016.02.016

• Strapdown Inertial Navigation System (SINS)/Global Positioning System (GPS) integration
• Distributed Position and Orientation System (POS)
• Airborne earth observation
• Transfer alignment
• Federated filter

The real-time and high-precision transfer alignment between the master and slave systems is the key issue for the airborne distributed Position and Orientation System (POS) to realize real-time and high-precision measurement of multipoint motion parameters. To solve the problem, this paper proposes a transfer alignment method based on federated filter, in which the high-dimensional state vector is divided into two parts and as the state vector of two local filters respectively instead of estimating in a centralized filter. This idea reduces the dimension of the system state vector; thus the computation speed is improved. The results of simulation and static ground experiment show that the proposed method runs faster than centralized filter by more than 10% and its alignment precision has the same level as centralized filter's.

• 出版日期2016-5
• 单位北京航空航天大学