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2011•Proceedings of the 24th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GNSS 2011)Requires access

Improvement of Positioning Performance in Urban Canyons Utilizing QZSS

Yuki Sato, Masakazu Miya, Y. Shima, M. Ssaito, J. Takiguchi, Jiro YAMASHITA

Open publisher page 3 citations

Abstract

In this paper, the advantages of utilizing Quasi-Zenith Satellite System (QZSS) are discussed. Experiment results show that the GPS L1 complementary signal from QZSS improves the availability of L1 code positioning approximately 1.7 to 2.5 times when it is compared to GPS only L1 code positioning. Furthermore, simulation results of loosely coupled GPS/Low-cost INS (Inertial Navigation Systems) with and without QZSS are shown. From the results, it is concluded that the system with QZSS makes its use as a future lane-navigation system possible by reducing the positioning errors by more than 30 percent compared to the system without QZSS.

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What this paper is about

In this paper, the advantages of utilizing Quasi-Zenith Satellite System (QZSS) are discussed. Experiment results show that the GPS L1 complementary signal from QZSS improves the availability of L1 code positioning approximately 1.7 to 2.5 times when it is compared to GPS only L1 code positioning. Furthermore, simulation results of loosely coupled GPS/Low-cost INS (Inertial Navigation Systems) with and without QZSS are shown. From the results, it is concluded that the system with QZSS makes its use as a future lane-navigation system possible by reducing the positioning errors by more than 30 percent compared to the system without QZSS.

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Available abstract

In this paper, the advantages of utilizing Quasi-Zenith Satellite System (QZSS) are discussed. Experiment results show that the GPS L1 complementary signal from QZSS improves the availability of L1 code positioning approximately 1.7 to 2.5 times when it is compared to GPS only L1 code positioning. Furthermore, simulation results of loosely coupled GPS/Low-cost INS (Inertial Navigation Systems) with and without QZSS are shown. From the results, it is concluded that the system with QZSS makes its use as a future lane-navigation system possible by reducing the positioning errors by more than 30 percent compared to the system without QZSS.

Key concepts: Quasi-Zenith Satellite System, Global Positioning System, Computer science, Code (set theory), GNSS applications, Satellite navigation, Real-time computing, Satellite system

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