Application of fixed interval smoothing to GPS/DR integrated navigation system

Author

Yang, Yanjuan ; Jin, Zhihua ; Tian, Weifeng ; Qian, Feng

Author_Institution

Coll. of Ind. Equip. & Control Eng., South China Univ. of Technol., Guangzhou, China

Volume

2

fYear

2003

fDate

12-15 Oct. 2003

Firstpage

1027

Abstract

This paper describes an application of R-T-S fixed interval optimal smoothing technique in GPS/DR integrated navigation system. Usually, a Kalman filter is used to estimate the navigation parameters of GPS/DR integrated navigation system. The precision of optimal smoothing is higher than that of Kalman filter from the theories point of view. So this paper uses R-T-S smoothing technique to test and evaluate GPS/DR integrated navigation system via post processing of navigation system via post processing of navigation data. The semi-physical simulation is implemented on computer with the static test data given by GPS and DR. The results show that R-T-S smoothing can effectively test and evaluate the GPS/DR integrated navigation system accuracy, and it is a valid post processing method.

Keywords

Global Positioning System; Kalman filters; navigation; parameter estimation; smoothing methods; GPS/DR integrated navigation system; Kalman filter; R-T-S smoothing technique; fixed interval optimal smoothing technique; fixed interval smoothing; navigation parameters; post processing method; semiphysical simulation; Filters; Global Positioning System; Helium; Inertial navigation; Intelligent transportation systems; Parameter estimation; Sampling methods; Smoothing methods; Stability; System testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Transportation Systems, 2003. Proceedings. 2003 IEEE

Print_ISBN

0-7803-8125-4

Type

conf

DOI

10.1109/ITSC.2003.1252641

Filename

1252641