Precise Positioning with Smartphones

Dear Colleagues,

Over the last few years, many smartphones have been equipped with Global Navigation Satellite System (GNSS) technology, allowing smartphone users to use their own devices for positioning purposes. After the release of the Android Nougat (version 7) operating systems, raw GNSS measurements (i.e., the pseudorange, carrier-phase, Doppler shift and carrier-to-noise density ratio (C/N0) observations) from smartphones and tablets became accessible, which opened the door to developing precise positioning capability in consumer devices. Since then, many studies have been conducted, as precise location information will lead to many new smartphone applications in the near future. While the progress has been encouraging, a number of limiting factors must be overcome in order to support real-world applications, including poor antenna quality, the difficulty of carrier-phase ambiguity resolution, and low availability and integrity in operational environments. Through this Special Issue, we invite contributions from academia and industry to discuss innovative ideas and algorithms and demonstrate testing results for precise positioning with Android smartphones. The topics of interest include, but are not limited to, the following:

• The analysis and modeling of smartphone GNSS observations
• Smartphone GNSS error estimation and mitigation
• Functional and stochastic models for precise positioning with smartphones
• Smartphone positioning with precise point positioning (PPP), real-team kinematic (RTK), machine learning (ML), and other advanced techniques
• Carrier-phase ambiguity resolution with smartphone GNSS observations
• The integrity monitoring of smartphone-based positioning
• Smartphone antenna analysis and calibration
• Smartphone GNSS and inertial sensor integration
• Location-based services with precision GNSS smartphones
• Applications of precision GNSS smartphones

Prof. Dr. Yang Gao 
Prof. Dr. Jacek Paziewski 
Dr. Michael Fu
Prof. Dr. Augusto Mazzoni
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sensors is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.