Title :
An MST-based microwave tomography system using homodyne receiver
Author :
Ostadrahimi, Majid ; Asefi, Mohammad ; LoVetri, Joe ; Bridges, Greg E. ; Shafai, L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB, Canada
Abstract :
A microwave tomography system utilizing an inexpensive data acquisition system is introduced. The data acquisition system comprises several antennas surrounding an object-of-interest, field measuring probes distributed evenly in the measurement chamber, and a lock-in amplifier unit to perform measurements at audio frequencies based on the modulated scatterer technique. Images of different objects are successfully reconstructed using the presented system.
Keywords :
data acquisition; homodyne detection; image reconstruction; microwave amplifiers; microwave imaging; microwave receivers; MST-based microwave tomography system; antennas; audio frequency measurements; data acquisition system; field measuring probes; homodyne receiver; lock-in amplifier unit; measurement chamber; modulated scatterer technique; object-of-interest; Antenna measurements; Frequency measurement; Frequency modulation; Microwave imaging; Microwave measurement; Microwave theory and techniques; Probes;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4673-5315-1
DOI :
10.1109/APS.2013.6711066
