Precise Dead-reckoning Using Portable Navigation Device in Urban Environments

Kojiro Takeyama, Noriyoshi Suzuki, Yoshiko Kojima, Takahisa Yamashiro, Seigou Kumabe

Peer Reviewed

Abstract:	This paper presents a novel method for dead-reckoning using portable navigation devices (PND) for land vehicle. In recent years, various PND which are low cost and easily mounted are becoming popular as a vehicle navigation device. However, because it cannot obtain wheel speed information from a vehicle, it is difficult to estimate accurate vehicle speed and the error of dead-reckoning is rapidly increased. Accordingly, in this study two approaches for improving dead-reckoning with PND is proposed. The first one is the accurate speed estimation using time-series tightly coupled integration of accelerometer, gyro, and GPS Doppler, which robustly works in urban area. And the second one is the correction of trajectory error using real-time backward processing that reduces accumulated error of the dead-reckoning. The experimental result shows that the error of dead-reckoning was reduced to 1/4 of the previous method in urban area.
Published in:	Proceedings of the 2015 International Technical Meeting of The Institute of Navigation January 26 - 28, 2015 Laguna Cliffs Marriott Dana Point, California
Pages:	608 - 613
Cite this article:	Takeyama, Kojiro, Suzuki, Noriyoshi, Kojima, Yoshiko, Yamashiro, Takahisa, Kumabe, Seigou, "Precise Dead-reckoning Using Portable Navigation Device in Urban Environments," Proceedings of the 2015 International Technical Meeting of The Institute of Navigation, Dana Point, California, January 2015, pp. 608-613.
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