Welcome to the ICG-PNT Lab

We are pleased to welcome you to the Intelligent Computational Geodesy and PNT (ICG-PNT) Lab at the Department of Land Surveying and Geospatial Science (LSGS), The Hong Kong Polytechnic University.

The ICG-PNT Lab develops rigorous theory, algorithms, and intelligent systems for high-precision Positioning, Navigation, and Timing (PNT). Our research connects computational geodesy, GNSS, Low Earth Orbit (LEO) satellites, lunar and deep-space navigation, and resilient alternative PNT technologies.

Our work is grounded in geodetic estimation theory and focuses on robust integer ambiguity resolution, precise atmospheric modeling, real-time orbit determination, and AI-enabled navigation. By combining physical models with data-driven methods, we aim to build smarter, more reliable, and more adaptive PNT systems for scientific, industrial, and societal applications.

The lab's research spans several interconnected directions:

• Geodetic data processing and multi-domain high-precision GNSS positioning
• Real-time precise orbit determination and LEO-based PNT
• Lunar and deep-space PNT and space geodesy
• Resilient and alternative PNT, including multi-sensor fusion and integrity monitoring

Through these directions, the ICG-PNT Lab supports applications across land, low-altitude airspace, ocean, LEO satellite systems, and future lunar and deep-space missions. We are especially interested in positioning infrastructure for smart cities, the Greater Bay Area low-altitude economy, autonomous systems, satellite-based services, and next-generation space exploration.

We warmly welcome students, researchers, industry partners, and international collaborators who share an interest in intelligent computational geodesy and advanced PNT systems. This website will share our latest research news, publications, projects, and group activities.

Welcome to the ICG-PNT Lab.