Title :
Microwave tomography using dynamic 802.15.4 wireless networks
Author :
Cover, Mathew B. ; Kanukurthy, Kiran S. ; Andersen, David R.
Author_Institution :
Univ. of Iowa, Iowa City
Abstract :
We demonstrate tomographic imaging of room-sized spaces using the propagation properties of 2.4 GHz, IEEE 802.15.4 direct sequence spread spectrum (DSSS) radio waves. We have successfully imaged dielectric phantom objects of the order of the RF wavelength (12.5 cm) in a wireless ZigBee network using only received signal strength indicator (RSSI) data. The Microchip ZigBee stack is utilized to provide an application layer program to control the network and provide an outlet for network data. Using the data collected by a coordinator node, tomographic methods are applied to the data to create images of objects that are physically located within a network of nodes.
Keywords :
application program interfaces; microwave imaging; phantoms; spread spectrum communication; tomography; wireless LAN; 802.15.4 wireless networks; RF wavelength; application layer program; dielectric phantom objects; direct sequence spread spectrum radio waves; microchip ZigBee stack; microwave tomography; received signal strength indicator data; tomographic imaging; wireless ZigBee network; Dielectrics; Imaging phantoms; Microwave imaging; Microwave propagation; RF signals; Radio frequency; Spread spectrum communication; Tomography; Wireless networks; ZigBee; IEEE 802.15.4; Networks; Tomography;
Conference_Titel :
Electro/Information Technology, 2007 IEEE International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-0941-9
Electronic_ISBN :
978-1-4244-0941-9
DOI :
10.1109/EIT.2007.4374502
