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Accuracy evaluation of time domain measurement systems for microwave tomography

Xuezhi Zeng (Institutionen för signaler och system, Biomedicinsk elektromagnetik) ; Andreas Fhager (Institutionen för signaler och system, Biomedicinsk elektromagnetik) ; Peter Linnér (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik) ; Mikael Persson (Institutionen för signaler och system, Biomedicinsk elektromagnetik) ; Herbert Zirath (Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik)
2009 IEEE MTT-S International Microwave Symposium, IMS 2009; Boston, MA; United States; 7 June 2009 through 12 June 2009 (0149645X). p. 1441-1444. (2009)
[Konferensbidrag, refereegranskat]

The measurement accuracy of time domain systems for microwave tomography are evaluated through system level simulations and compared with that of a network analyzer based frequency domain system. In the analysis, both a time domain ultra-wideband (UWB) impulse and multiband system architectures are considered. It is shown that the measurement error of the time domain systems mainly comes from analog to digital (A/D) conversion. For a simple comparison case, the relative measurement error involved in an estimated object response signal from the time domain UWB impulse system and UWB multiband system measurements are around three times and ten times higher than that from frequency domain system.

Nyckelord: Measurement errors, medical imaging, microwaveimaging, system modeling, time domain measurements.



Denna post skapades 2009-12-18. Senast ändrad 2017-03-21.
CPL Pubid: 104317

 

Institutioner (Chalmers)

Institutionen för signaler och system, Biomedicinsk elektromagnetik (2006-2017)
Institutionen för mikroteknologi och nanovetenskap, Mikrovågselektronik

Ämnesområden

Elektroteknik

Chalmers infrastruktur

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Denna publikation ingår i:


Ultra-Wideband Time Domain Measurement Systems for Microwave Tomography