Dear Colleagues,

This year saw the 50th Anniversary of the approval of the Global Positioning System (GPS) program by the U.S. Department of Defence. In those 50 years, GPS has been joined by three other Global Navigation Satellite Systems (GNSS) and two Regional Systems. The multi-GNSS, comprising constellations such as GPS, GLONASS, Galileo, and BeiDou, provides a global network of satellites that transmit signals enabling receivers to calculate their positions with remarkable accuracy. The field of positioning, navigation, and timing (PNT) via GNSS plays a crucial role in various domains, ranging from autonomous systems and aviation to maritime applications and space exploration. Over the years, advancements in PNT technologies have revolutionised our ability to navigate and locate objects accurately in land, air, sea, and even space environments. This Special Issue aims to explore the latest developments and research in this multidisciplinary area, shedding light on the significance of GNSS PNT and its diverse applications. By delving into these areas, we aim to contribute to the continued growth and innovation in the field of GNSS PNT, ultimately shaping the future of navigation and positioning systems across various sectors.

This Special Issue aims to explore the latest developments and research in the multidisciplinary field of GNSS PNT. By showcasing cutting-edge advancements, innovations, and studies, this Issue seeks to showcase the significance of GNSS PNT and its diverse applications. The aim is to foster a deeper understanding of the potential and challenges associated with GNSS PNT technologies and their impact on various domains.

This Special Issue aligns perfectly with the scope of the journal Remote Sensing, which focuses on the publication of high-quality research in the field of GNSS PNT and related areas.

Articles may address, but are not limited, to the following topics:

• Autonomy on land, air, sea and in space;
• Aviation and avionics;
• Cooperative intelligent transport systems;
• Machine guidance applications in agriculture, construction and mining;
• Maritime applications;
• Unmanned aerial systems;
• Space applications of PNT in Earth’s orbit and for Lunar and Martian exploration;
• Positioning infrastructure;
• GNSS vulnerability, resilience and risk;
• Interference detection and mitigation;
• Policies and standards;
• SBAS and other augmentations;
• Data and geodesy;
• National and international GNSS developments;
• Emerging application areas for GNSS;
• Key industries and their reliance on GNSS;
• Embracing the multi-GNSS era;
• Cyber security in PNT applications and infrastructure;
• Alternative PNT;
• State of the art in PNT algorithms and software development;
• GNSS aiding and sensor fusion;
• Positioning in GNSS-denied environments;
• Development of GNSS receiver hardware and firmware;
• Precise positioning using smartphones.

Dr. Yang Yang
Prof. Dr. Andrew Dempster
Prof. Dr. Suelynn Choy
Guest Editors

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 100 words) can be sent to the Editorial Office for announcement on this website.

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. Remote Sensing 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 2700 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.

• GNSS
• PNT
• autonomy
• unmanned systems
• multi-GNSS era
• alternate PNT
• cyber security
• datums and geodesy
• cooperative intelligent transport systems
• space applications