GPS accuracy improvement by satellite selection using omnidirectional infrared camera

Jun Ichi Meguro, Taishi Murata, Jun Ichi Takiguchi, Yoshiharu Amano, Takumi Hashizume

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    10 Citations (Scopus)

    Abstract

    This paper describes a precision positioning technique that can be applied to vehicles in urban areas. The proposed technique mitigates GPS multipath by means of an omnidirectional infrared (IR) camera that can eliminate the need for invisible satellites (a satellite detected by the receiver but without LOS (Line Of Sight)) by using IR images. Some simple GPS multipath mitigation techniques such as installation of antennas away from buildings and using choke ring antennas are well known. Further, various correlator techniques can also be employed. However, when a direct signal cannot be received by the antenna, these techniques do not provide satisfactory results because they presume that the antenna chiefly receives direct signals. On the other hand, the proposed technique can mitigate GPS multipath even if a direct signal cannot be received because it can recognize the surrounding environment by means of an omnidirectional IR camera. With the IR camera, the sky appears distinctively dark; this facilitates the detection of the borderline between the sky and the surrounding buildings, which are captured in white, due to the difference in the atmospheric transmittance rate between visible light and the IR rays. Positioning is performed only with visible satellites having less multipath errors, and without using invisible satellites. With the proposed system, static and kinematic evaluations in which invisible satellites are discriminated through observation using an omnidirectional IR camera are conducted. Hence, signals are received even if satellites are hidden behind buildings; furthermore, exclusion of satellites having large errors from the positioning computation becomes possible. The evaluation results confirm the effectiveness of the proposed technique and the feasibility of highly accurate positioning.

    Original languageEnglish
    Title of host publication2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS
    Pages1804-1810
    Number of pages7
    DOIs
    Publication statusPublished - 2008
    Event2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS - Nice
    Duration: 2008 Sep 222008 Sep 26

    Other

    Other2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS
    CityNice
    Period08/9/2208/9/26

    Fingerprint

    Global positioning system
    Cameras
    Satellites
    Infrared radiation
    Antennas
    Electric inductors
    Correlators
    Kinematics

    Keywords

    • Global positioning system
    • Infrared image sensors
    • Multipath mitigation
    • Self-positioning
    • Urban areas

    ASJC Scopus subject areas

    • Artificial Intelligence
    • Computer Vision and Pattern Recognition
    • Control and Systems Engineering
    • Electrical and Electronic Engineering

    Cite this

    Meguro, J. I., Murata, T., Takiguchi, J. I., Amano, Y., & Hashizume, T. (2008). GPS accuracy improvement by satellite selection using omnidirectional infrared camera. In 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS (pp. 1804-1810). [4650709] https://doi.org/10.1109/IROS.2008.4650709

    GPS accuracy improvement by satellite selection using omnidirectional infrared camera. / Meguro, Jun Ichi; Murata, Taishi; Takiguchi, Jun Ichi; Amano, Yoshiharu; Hashizume, Takumi.

    2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS. 2008. p. 1804-1810 4650709.

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Meguro, JI, Murata, T, Takiguchi, JI, Amano, Y & Hashizume, T 2008, GPS accuracy improvement by satellite selection using omnidirectional infrared camera. in 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS., 4650709, pp. 1804-1810, 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS, Nice, 08/9/22. https://doi.org/10.1109/IROS.2008.4650709
    Meguro JI, Murata T, Takiguchi JI, Amano Y, Hashizume T. GPS accuracy improvement by satellite selection using omnidirectional infrared camera. In 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS. 2008. p. 1804-1810. 4650709 https://doi.org/10.1109/IROS.2008.4650709
    Meguro, Jun Ichi ; Murata, Taishi ; Takiguchi, Jun Ichi ; Amano, Yoshiharu ; Hashizume, Takumi. / GPS accuracy improvement by satellite selection using omnidirectional infrared camera. 2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, IROS. 2008. pp. 1804-1810
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