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Article: Frequency-hopping approach for microwave imaging of large inhomogeneous bodies

TitleFrequency-hopping approach for microwave imaging of large inhomogeneous bodies
Authors
Issue Date1995
Citation
Ieee Microwave And Guided Wave Letters, 1995, v. 5 n. 12, p. 439-441 How to Cite?
AbstractA frequency-hopping approach is proposed to process multifrequency CW microwave measurement data so that larger dielectric bodies for microwave imaging can be reconstructed with higher fidelity compared to a single-frequency reconstruction. The frequency hopping approach uses only data at a few frequencies, and hence can reduce data acquisition time in a practical system. Moreover, the frequency-hopping approach overcomes the effect of nonlinearity in the optimization procedure so that an algorithm is not being trapped in local minima. In this manner, larger objects with higher contrasts could be reconstructed without a priori information. We demonstrate the reconstruction of an object 10 wavelengths in diameter with permittivity profile contrast larger than 1:2 without using a priori information.
Persistent Identifierhttp://hdl.handle.net/10722/182561
ISSN
2002 Impact Factor: 1.746
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorChew, WCen_US
dc.contributor.authorLin, JHen_US
dc.date.accessioned2013-05-02T05:15:52Z-
dc.date.available2013-05-02T05:15:52Z-
dc.date.issued1995en_US
dc.identifier.citationIeee Microwave And Guided Wave Letters, 1995, v. 5 n. 12, p. 439-441en_US
dc.identifier.issn1051-8207en_US
dc.identifier.urihttp://hdl.handle.net/10722/182561-
dc.description.abstractA frequency-hopping approach is proposed to process multifrequency CW microwave measurement data so that larger dielectric bodies for microwave imaging can be reconstructed with higher fidelity compared to a single-frequency reconstruction. The frequency hopping approach uses only data at a few frequencies, and hence can reduce data acquisition time in a practical system. Moreover, the frequency-hopping approach overcomes the effect of nonlinearity in the optimization procedure so that an algorithm is not being trapped in local minima. In this manner, larger objects with higher contrasts could be reconstructed without a priori information. We demonstrate the reconstruction of an object 10 wavelengths in diameter with permittivity profile contrast larger than 1:2 without using a priori information.en_US
dc.languageengen_US
dc.relation.ispartofIEEE Microwave and Guided Wave Lettersen_US
dc.titleFrequency-hopping approach for microwave imaging of large inhomogeneous bodiesen_US
dc.typeArticleen_US
dc.identifier.emailChew, WC: wcchew@hku.hken_US
dc.identifier.authorityChew, WC=rp00656en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/75.481854en_US
dc.identifier.scopuseid_2-s2.0-0029536212en_US
dc.identifier.volume5en_US
dc.identifier.issue12en_US
dc.identifier.spage439en_US
dc.identifier.epage441en_US
dc.identifier.isiWOS:A1995TF82300006-
dc.identifier.scopusauthoridChew, WC=36014436300en_US
dc.identifier.scopusauthoridLin, JH=8148328500en_US

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