Title :
2-D localization and identification based on SAW ID-tags at 2.5 GHz
Author :
Bechteler, Thomas F. ; Yenigün, Hüsnü
Author_Institution :
Fac. of Eng. & Natural Sci., Sabanci Univ., Orhanli-Tuzla, Turkey
fDate :
5/1/2003 12:00:00 AM
Abstract :
An identification and localization system based on surface acoustic wave (SAW) radio sensors is presented in this paper. This system is able to identify and localize objects within a two-dimensional area. Identification is achieved with a fixed coded passive SAW identification-tag. Localization is carried out with three receiving antennas and with a following analysis of time delay between the sent interrogation signal and the received signals. For practical tests, a special interrogator has been established, as well as the receiving and demodulation unit. The whole system is controlled by a computer.
Keywords :
computerised control; computerised instrumentation; identification technology; radio applications; receiving antennas; surface acoustic wave sensors; 2.5 GHz; 2D identification system; 2D localization system; SAW ID tags; SAW identification-tag; SAW radio sensors; computer controlled system; demodulation unit; fixed coded passive identification-tag; interrogation signal; received signals; receiving antennas; surface acoustic wave radio sensors; time delay analysis; Acoustic sensors; Acoustic waves; Control systems; Delay effects; Demodulation; Receiving antennas; Sensor systems; Signal analysis; Surface acoustic waves; Testing;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2003.810142
