An Enhanced Approach for Improving Waterborne Positioning Accuracy Utilizing Multi-Epoch Elevation Constraints in Mobile RTK Southeast University, School of Transportation

Format:

Book

Conference/Event

Author/Creator:

Wumaier, Diliyaer, author.

Contributor:

Mu, Hongbo

Yu, Xianwen

Conference Name:

2024 International Conference on Smart Transportation Interdisciplinary Studies (2024-12-13 : Nanjing, China)

Language:

English

Physical Description:

1 online resource cm

Place of Publication:

Warrendale, PA SAE International 2025

Summary:

The rapid advancement of inland waterway transport has led to safety concerns, while real-time high-precision positioning in maritime contexts is essential for enhancing navigation efficiency and safety. To tackle this problem, this paper proposes a method for enhancing the accuracy of maritime Real - Time Kinematic (RTK) positioning using smartphones based on multi-epoch elevation constraints. Firstly, the elevation characteristics of smartphones in a maritime context were analyzed. Subsequently, exploiting the feature of gradual elevation variations when vessels navigate inland rivers, an appropriate sliding window was established to construct elevation constraint values, which were then integrated into the observation equations for filtering computations to boost positioning accuracy. Finally, synchronous observations were carried out using smartphones and geodetic receivers to compare and analyze the positioning accuracy before and after the addition of the elevation constraints. The experimental results demonstrate that the positioning accuracy with the added elevation constraints improved by 13.7% and 31.9% in the X and Y directions, respectively, and the planar accuracy increased by 14.4%

Notes:

Vendor supplied data

Publisher Number:

2025-01-7156

Access Restriction:

Restricted for use by site license