Global Navigation Satellite System (GNSS) based indoor positioning generally utilizes repeaters to amplify and retransmit the original GNSS signals to indoor receivers. To improve the positioning accuracy with GNSS repeaters in indoor environments such as an underground parking lot and an enclosed depot, in this paper, a carrier phase measurement based differential indoor positioning method is proposed. Without reference stations, the carrier phases measured by using the repeated signals are differenced between repeaters. Considering that upon carrier tracking loop locking the signals the carrier phase cycle integer ambiguity remains unchanged, the differenced phase measurements at two consecutive epochs are combined to find the receiver position. Receiver coordinates and phase cycle integer ambiguities are solved jointly with assistant Least-squares AMBiguity Decorrelation Adjustment (LAMBDA) algorithm. High positioning accuracy is achieved by the proposed technique, and this is verified by close-to-reality simulations.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    GNSS Repeater Based Differential Indoor Positioning With Multi-Epoch Measurements


    Contributors:
    Li, Xiukui (author)

    Published in:

    Publication date :

    2023-01-01


    Size :

    1735610 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Different Positioning Strategies Using Multi-Frequency / Multi-Constellation GNSS Measurements

    Stanisak, M. / Haak, U. / Schwithal, A. | British Library Conference Proceedings | 2015


    INDOOR REPEATER SYSTEM USING DRONE

    KWAK JAE SUP / KIM JOON WON / KIM JAE GWAN et al. | European Patent Office | 2018

    Free access


    Improve real-time GNSS orbit with epoch-independent undifferenced ambiguity resolution

    Kuang, Kaifa / Li, Jiancheng / Zhang, Shoujian et al. | Elsevier | 2021