07-06-2009, 01:20 AM
Abstract Ultra Wide Band (UWB) sensors are one of the greatest inventions to provide high security for power plants, reservoirs and other critical infrastructures by detecting unauthorized intrusion. The principle behind these is they use high fractional bandwidth and low frequency of operation. Compared to other Doppler radars these have very high resolution because of wide band width, and these have good propagation through many materials because of low frequency of operation. Types of UWB sensors are UWB Ground Penetrating Radar (GPR) to know disturbances in the earth, and Through-Wall Motion Detection Radars are used for law enforcement, and home land security. These sensors give information about the targets even in the presence of clutter and also tracks slow moving targets. From all these it is evident that UWB sensors are more advantageous than other sensors
