Tightly coupled integration of GPS and AC Magnetic Positioning Systems

This paper describes the design and realization of a Magnetic Positioning System (MPS) integrated with a Global Positioning System (GPS) receiver. The GPS receiver is composed of a hardware section and a software section that can integrate with the MPS. Both system-level architecture and realization details are described along with experimental results. The realized measurement system exhibits a maximum positioning error of less than 5 m, and an average error of less than 3 m, thus providing better performance than a standalone GPS consumer receiver. Further, the system has been tested in two different scenarios, showing repeatable performance.