Dr Ed Bryant

With a BEng (Hons) degree course in Communication Engineering at Leeds, Ed received a NERC CASE award in 1991 to study for a PhD in Radio Tracking Systems at Sheffield University Radar Group. Closely working with the Sea Mammal Research Unit (SMRU) he spent the summers in the field in Norway tracking Harbour Seals (Phoca Vitulina). 

From 1995 to 1998 as a Research Fellow with SMRU he studied the effects of acoustic disturbance on seals. 

After a year of industrial experience developing electronic warfare receivers he returned to academia at Leeds University, where he was responsible for developing channel sounding systems for the measurement of radio wave reflections. These systems were then used to study the effect of radio wave multipath propagation on ISM band signals (2.4GHz) in industrial environments, and also the resilience of the proposed 'Galileo' satellite navigation system signal structure to multipath. 

He left Leeds as a Senior Research Fellow in 2002 to run his newly formed company ‘Wildtrack Telemetry Systems’.  In 2004 the first field prototypes of the Fastloc® GPS receiver were successfully trialled on Grey Seals in the North Sea.  The Fastloc® technology was licenced in 2005 and, now in its 3rd evolution, has been successfully deployed on thousands of marine animals around the world. 

In partnership with Dr Gary Brodin, a former colleague from Leeds University, Pathtrack Ltd was set up to develop the Fastloc® GPS receiver further and add enabling technologies such as UHF download capability, immersion sensing and solar charging. 

At present his role as a Director in Pathtrack includes responsibility for system, hardware and antenna design. 

Ed’s main areas of interest are: digital signal processing, receiver design, low power electronics, embedded programming and antennas


Bryant, E. B., S. P. Kingsley, and C. W. Anderson. "Over-the-horizon tracking of marine mammals."
Sixth International Conference on `HF Radio Systems and Techniques', January (1994): 283-288

Bjørge, Arne, Dave Thompson, Philip Hammond, Michael Fedak, Edmund Bryant, Hilde Aarefjord, Randi Roen, and Marianne Olsen. "Habitat use and diving behaviour of harbour seals in a coastal archipelago in Norway."Developments in Marine Biology 4 (1995): 211-223.

Thompson, D., Sjoberg, M., Bryant,  E., Lovell, P., & Bjorge, A. (1998). Behavioural and physiological responses of harbour (Phoca vitulina) and grey (Halichoerus grypus) seals to seismic surveys. Report to European Commission of BROMMAD Project. MAS2 C7940098.

Bryant, E. B., and A. H. Kemp. "UHF channel impulse response measurements in previously uncharacterised industrial environments." ECWT (2000): 281-284.

O'Donnell, Matt, Trevor Watson, James Fisher, Steve Simpson, Gary Brodin, Ed Bryant, and David Walsh. "A study of Galileo performance-GPS interoperability and discriminators for urban and indoor environments." InProceedings of the 15th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 2002), pp. 2160-2172. 2002.

O’Donnell, M., Baker, A., Cole, J., Fisher, J., Simpson, S., Welsh, T., Brodin, G., Bryant, E., Cartmell, A. & Walsh, D., “A Study of Galileo Discriminators for Urban and Indoor Environments”, GNSS 2002, Copenhagen.

O'Donnell, M., Watson, T., Fisher, J., Simpson, S., Brodin, G., Bryant, E. & Walsh, D., “A Study of Galileo Performance - GPS Interoperability and Discriminators for Urban and Indoor Environments”, ION 2002, Portland, Oregon, 24-27 September 2002.

Bjørge, Arne, Trine Bekkby, and Edmund B. Bryant. "Summer home range and habitat selection of harbor seal (Phoca vitulina) pups." Marine Mammal Science18, no. 2 (2002): 438-454.

ODonnell, M., T. Watson, J. Fisher, S. Simpson, G. Brodin, E. Bryant, and D. Walsh. "GPS Interoperability and Discriminators for Urban and Indoor Environments." GPS World (invited article), Advanstar Communications (2003).

Mcconnell, Bernie, Rory Beaton, Ed Bryant, Colin Hunter, Phil Lovell, and Ailsa Hall. "Phoning home - A new GSM mobile phone telemetry system to collect mark-recapture data." Marine Mammal Science 20, no. 2 (2004): 274-283.

Kemp, Andrew H., and Edmund B. Bryant. "Channel sounding of industrial sites in the 2.4 GHz ISM band." Wireless Personal Communications 31, no. 3-4 (2004): 235-248.

Bryant, Edmund B., and Andrew H. Kemp "CIR measurement system for characterisation of wideband communication channels in the 2.4 GHz ISM band." Journal of Electrical Engineering 57, no. 3 (2006): 146-153

Bryant, Edmund B., Gary J. Brodin, and Andrew H. Kemp. "High resolution channel sounder with narrowband low interference characteristics." Aerospace and Electronic Systems, IEEE Transactions on 42, no. 2 (2006): 514-526.

Evans, Karen, Heather Baer, Ed Bryant, Melinda Holland, Ted Rupley, and Chris Wilcox. "Resolving estimation of movement in a vertically migrating pelagic fish: Does GPS provide a solution?." Journal of Experimental Marine Biology and Ecology 398, no. 1 (2011): 9-17.