UWB Imaging Kshitij Gunjikar

What is UWB? First of all, the term "ultra wideband" is a relatively new term to describe a technology which had been known since the early 1960’s as "carrier-free", "baseband" or "impulse" technology. The basic concept is to develop, transmit and receive an extremely short duration burst of radio frequency (RF) energy – typically a few tens of picoseconds (trillionths of a second) to a few nanoseconds (billionths of a second) in duration. Frequency range occupied is more than 500 MHz or fractional bandwidth is greater than 20%.

Advantages of UWB High Data rates Low Power Immunity to multipaths No carrier Low cost transceivers Bandwidth usually in GHz Promising applications in Biomedical areas

Applications Cardiac Monitoring and Imaging Respiratory pattern monitor Infant Monitor Vocal Chord Monitor Wheel Chair Driving systems Smart Home systems Rubble Rescue Radar IR Spectral Imaging……etc etc

Advantages Non Contact Based No Cleaning required No disposables Remote and Continuous monitors Low Cost Low Maintenance Can monitor through clothes and useful at a few meters range

Work being Done University Of Wisconsin-Madison Swiss Federal Institute of Technology, Zurich University of Rome, Tor Vergata Roke Manor Research, UK University of California, Davis Lawrence Livermore National Laboratory Lifewave Inc. Virginia Tech.

References “Ultra Wide Band (UWB) and Health Applications” – Riveria Natalia, 2005, IREAN Research Workshop, Virginia Tech “UWB Radars in Medicine” – Enrico Staderini, Tor Vergata University of Rome “Understanding Ultra Wide Band Radio Fundamentals”, M G Di Benedetto, G Giancola, Prentice Hall t_rmr_uwb2003.pdf, Roke Manor Research Presentation. t_rmr_uwb2003.pdf