Computer Laboratory

Ramsey Faragher


Ramsey Faragher

I am a Senior Research Associate in the Digital Technology Group of the Computer Laboratory working on infrastructure-free indoor positioning using smartphone-grade sensing. I'm also a Bye Fellow of Queens' College, Cambridge, a Fellow of Royal Institute of Navigation (RIN), Associate Editor of the RIN journal, and a Chartered Physicist.

Previously I was a Principal Scientist at BAE Systems where I developed technologies such as the NAVSOP suite of positioning systems. I was also the real life Q, according to Top Gear magazine at least....

I hold three degrees in Physics from the University of Cambridge, including a PhD in the Effects of Multipath Interference on Radio Positioning Systems.

Research Interests

My current research is concentrating on Infrastructure-free Indoor Positioning, Simultaneous Localisation and Mapping (SLAM), and Improvements to Smartphone Sensing.
My further interests include: Navigation using Signals of Opportunity, GPS-denied Navigation, Machine Learning, Digital Signal Processing, Computer Vision, Sensor Fusion,Wireless Security, Software-Defined Radio, and Autonomy.



I supervise seven courses for Computer Science students at Queen's College. I also help to lecture the Part II Topical Issues course.

The IEEE Signal Processing Society asked me to record one of my publications (an introduction to the Kalman Filter) as a video lecture. The lecture can be viewed here.

Consulting services

I have provided private consultancy on topics such as positioning systems, sensor fusion, signal processing, remote tracking and machine learning for a variety of entities, ranging from Government bodies, large companies, SMEs and other academic institutions. If you wish to engage my services please make contact using the email address below.

Contact Information

Ramsey Faragher
Senior Research Associate
University of Cambridge
Computer Laboratory
15 JJ Thomson Avenue
Cambridge CB3 0FD
United Kingdom

Phone: +44 1223 763767
Email: rmf25 [at]