Hong Kong Logistics and Supply Chain MultiTech R&D Centre > R&D Areas > Project Database
Project Database
Project Reference: ITP/019/22LP
Project Title: Hong Kong GNSS signal quality monitoring and interference detection system
Hosting Institution: The Hong Kong Polytechnic University (PolyU)
Abstract: The Lands Department is developing the Global Navigation Satellite System (GNSS)
infrastructure in Hong Kong to support different positioning, navigation and timing
applications. The GNSS infrastructure has now provided the public service of Differential
GNSS (DGNSS) and real-time kinematic (RTK) for all constellations, i.e. GPS,
GLONASS, Beidou and Galileo. This infrastructure has been widely used by highprecision
applications in Hong Kong. However, the current GNSS infrastructure can be
affected by the frequent system failures and interferences. They can cause large errors
and even complete loss of lock in receivers, affecting various critical applications
including civil aviation, communication networks and electric power. It is therefore critical
to detect system failures and interferences, and to mitigate their effects on these critical
applications. This project aims at studying the key techniques of GNSS signal quality
monitoring and interference detection system. The objectives of the project are 1) To
monitor GNSS data quality and provide real-time warning when GNSS are malfunctioned;
2) To detect and locate any sources of GNSS signal interference. The system developed
in this project would significantly improve the reliability of positioning service for various
applications including civil aviation, unmanned aerial vehicle (UAV) and communication
Project Coordinator: Prof Wu Chen
Approved Funding Amount: HK$ 8.19M
Project Period: 30 June 2022 - 30 June 2024
  1. Print
  2. Share
  • Next
  • Previous
  • Back to List