Two-Dimensional Differential Positioning with Global Navigation Satellite System Signal Frequency Division Relay Forwarding to Parallel Leaky Coaxial Cables in Tunnel DOI Creative Commons

Keyuan Jiao,

Maozhong Song,

Xiaolong Tang

и другие.

Applied Sciences, Год журнала: 2024, Номер 14(22), С. 10288 - 10288

Опубликована: Ноя. 8, 2024

To address the issue of GNSS receivers being unable to function properly in tunnels due loss Global Navigation Satellite System (GNSS) signals, this paper proposes a two-dimensional differential positioning system for tunnel environments based on dual leaky coaxial (LCX) cables with signal frequency relay forwarding. The receives mixed signals from open and utilizes selection capabilities MAX2769E chip separate generate radio at different frequencies corresponding GPS, BDS, GLONASS. These are then used drive three ports LCX cables, which laid parallel within tunnel. By leveraging uniform radiation characteristics stable coverage is achieved throughout On receiving end, receiver achieves by utilizing inter-satellite pseudorange differences reference point error correction. simulation results indicate that T-shaped radiating configuration offers excellent accuracy noise resistance, achieving meter-level environments.

Язык: Английский

Two-Dimensional Differential Positioning with Global Navigation Satellite System Signal Frequency Division Relay Forwarding to Parallel Leaky Coaxial Cables in Tunnel DOI Creative Commons

Keyuan Jiao,

Maozhong Song,

Xiaolong Tang

и другие.

Applied Sciences, Год журнала: 2024, Номер 14(22), С. 10288 - 10288

Опубликована: Ноя. 8, 2024

To address the issue of GNSS receivers being unable to function properly in tunnels due loss Global Navigation Satellite System (GNSS) signals, this paper proposes a two-dimensional differential positioning system for tunnel environments based on dual leaky coaxial (LCX) cables with signal frequency relay forwarding. The receives mixed signals from open and utilizes selection capabilities MAX2769E chip separate generate radio at different frequencies corresponding GPS, BDS, GLONASS. These are then used drive three ports LCX cables, which laid parallel within tunnel. By leveraging uniform radiation characteristics stable coverage is achieved throughout On receiving end, receiver achieves by utilizing inter-satellite pseudorange differences reference point error correction. simulation results indicate that T-shaped radiating configuration offers excellent accuracy noise resistance, achieving meter-level environments.

Язык: Английский

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