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GNSS smartphones positioning: advances, challenges, opportunities, and future perspectives
Farzaneh Zangenehnejad1, Yang Gao1
1Department of Geomatics Engineering, Schulich School of Engineering, University of Calgary, 2500 University Drive N.W, Calgary, AB T2N 1N4 Canada.
Satellite Navigation
|December 6, 2021
Summary
Raw Global Navigation Satellite System (GNSS) data from smartphones offers cost-effective positioning for various applications. This review examines GNSS smartphone positioning research, challenges, and future opportunities.
Area of Science:
- Geomatics Engineering
- Satellite Navigation Systems
- Mobile Device Technology
Background:
- Raw Global Navigation Satellite System (GNSS) measurements became accessible via Android OS in 2016.
- GNSS smartphone positioning has garnered significant research interest due to its cost-effectiveness.
- Applications include cadastral surveys, mapping, and navigation for vehicles and pedestrians.
Purpose of the Study:
- To review fundamental research on raw smartphone GNSS observations and quality assessment.
- To describe the current state of smartphone positioning research up to 2021.
- To summarize key challenges and opportunities in the field.
Main Methods:
- Review of existing literature on GNSS smartphone positioning.
- Analysis of raw GNSS observations from devices like Google Pixel and Samsung Ultra S20.
- Assessment of signal strength and carrier-phase continuity.
Main Results:
- Identified challenges in noisy observations, environmental effects, and holding modes.
- Reviewed quality assessment of GNSS observations from major smartphone models.
- Detailed the evolution of smartphone positioning research until 2021.
Conclusions:
- Despite challenges, GNSS smartphone positioning holds significant potential for diverse applications.
- Further research is needed to overcome limitations and enhance positioning accuracy.
- Future perspectives include algorithmic advancements and improved hardware integration.
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