DR. R. JAMES DUCKWORTH is an associate professor in the Electrical and Computer Engineering Department at Worcester Polytechnic Institute (WPI). He is the principal investigator for the WPI Precision Personnel Locator (PPL) system and has been working on the project for the past six years. His main research and teaching focus is on the design of location and tracking systems and embedded computer systems. He has authored or co-authored over 50 technical papers and presentations, has published a book on digital logic design, and has two patents. Dr Duckworth is a Senior Member of the IEEE, a member of ION and IEE, and a Fellow of BCS.