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Updated: Jun 26, 2025

Measuring and Mapping Patterns of Soil Erosion and Deposition Related to Soil Carbonate Concentrations Under Agricultural Management

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Modified RTK-GNSS for Challenging Environments.

Ellarizza Fredeluces¹, Tomohiro Ozeki¹, Nobuaki Kubo¹

¹Department of Marine Systems Engineering, Tokyo University of Marine Science and Technology, Tokyo 135-8533, Japan.

Sensors (Basel, Switzerland)

|May 11, 2024

Summary

This summary is machine-generated.

Real-Time Kinematic Global Navigation Satellite System (RTK-GNSS) offers centimeter-level accuracy but struggles in urban areas. This study enhances RTK-GNSS reliability using surplus satellites to improve positioning accuracy and fix rates in challenging environments.

Keywords:

RTK multipath navigation reliability

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Area of Science:

Geomatics Engineering
Satellite Navigation Systems
Geospatial Positioning

Background:

Real-Time Kinematic Global Navigation Satellite System (RTK-GNSS) is a leading technology for precise positioning.
RTK-GNSS performance degrades in urban environments due to multipath interference and signal obstruction.
Navigation industry users face significant challenges with current RTK-GNSS robustness in built-up areas.

Purpose of the Study:

To enhance the availability and reliability of RTK-GNSS solutions in challenging urban environments.
To develop and evaluate novel methodologies for improving RTK-GNSS performance.
To address the limitations of conventional RTK-GNSS in areas with signal degradation.

Main Methods:

Integration of conventional RTK-GNSS techniques with a new method utilizing surplus satellites.
Development of a technique to leverage unused satellite data for detecting incorrect positioning solutions.
Field testing in densely built-up urban areas within the Tokyo region.

Main Results:

The proposed approach demonstrated a superior fix rate compared to commercial receivers and open-source programs.
Positional reliability was significantly improved, reaching levels comparable to or exceeding commercial technologies.
The methodologies effectively mitigated multipath effects and limited signal availability issues.

Conclusions:

The novel RTK-GNSS enhancement strategy significantly improves positioning accuracy and reliability in urban settings.
Leveraging surplus satellites offers a robust solution for overcoming GNSS signal challenges.
This research provides a valuable advancement for navigation applications in complex environments.