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Experimental Invest...
Experimental Investigation of the Accuracy of an Ultrawideband Time-Domain Microwave-Tomographic System
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- Zeng, Xuezhi, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Fhager, Andreas, 1976 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Linner, Peter, 1945 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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visa fler...
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- Persson, Mikael, 1959 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Zirath, Herbert, 1955 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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visa färre...
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(creator_code:org_t)
- 2011
- 2011
- Engelska.
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Ingår i: IEEE Transactions on Instrumentation and Measurement. - 1557-9662 .- 0018-9456. ; 60:12, s. 3939-3949
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Abstract
Ämnesord
Stäng
- The measurement accuracy of an ultrawideband (UWB) time-domain microwave-tomographic system is investigated. In order to make an assessment of the random variation of the measurements, the measurement repeatability of the system is evaluated by comparison with an UWB frequency-domain system. A phantom is imaged with the time-domain microwave-tomographic system, and the reconstructed images are compared with those obtained by using the frequency-domain system. The results suggest that with the averaging tens of measurements, the time-domain system can achieve the same level of measurement repeatability as that of the frequency-domain system in the interesting frequency range of microwave tomography. The imaging results, however, indicate that the phantom reconstruction does not require such high measurement accuracy. The permittivity profile of the phantom reconstructed from the nonaveraging time-domain measurements is very similar with that obtained by means of the frequency-domain system.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- oscilloscopes
- Measurement errors
- random noise
- time-domain measurements
- microwave imaging
- microwave measurements
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- Av författaren/redakt...
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Zeng, Xuezhi, 19 ...
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Fhager, Andreas, ...
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Linner, Peter, 1 ...
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Persson, Mikael, ...
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Zirath, Herbert, ...
- Om ämnet
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- TEKNIK OCH TEKNOLOGIER
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TEKNIK OCH TEKNO ...
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och Elektroteknik oc ...
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och Annan elektrotek ...
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Chalmers tekniska högskola