Ultra-wideband radar imaging experiment for verifying super-resolution in nonlinear inverse scattering

Fu-Chiarng Chen, Weng Cho Chew

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

The super-resolution phenomenon in nonlinear inverse scattering has been reported previously using numerically simulated data. What was shown was the ability of a nonlinear inverse scattering method to resolve features that are much less than half a wavelength, the criterion dictated by the Rayleigh criterion. The phenomenon has been attributed to the multiple scattering effect within an inhomogeneous body. The high spatial frequency (high resolution) information of the object is usually contained in the evanescent waves when only single scattering physics is considered. Multiple scattering converts evanescent waves into propagating waves and vice versa. Hence, in an inverse scattering experiment, even though an object is interrogated with a propagating wave, and only scattered waves corresponding to propagating waves can be measured, the scattered waves contains high resolution information about the scatterer because of the evanescent-propagating waves conversion in a multiply scattered field. Therefore, an inverse scattering method that can unravel the multiple scattering information can extract the high resolution information on a scatterer.

Original languageEnglish
Title of host publicationIEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas
Subtitle of host publicationGateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1284-1287
Number of pages4
ISBN (Print)0780344782, 9780780344785
DOIs
StatePublished - 1 Jan 1998
Event1998 IEEE Antennas and Propagation Society International Symposium, APSURSI 1998 - Atlanta, United States
Duration: 21 Jun 199826 Jun 1998

Publication series

NameIEEE Antennas and Propagation Society International Symposium, 1998 Digest - Antennas: Gateways to the Global Network - Held in conjunction with: USNC/URSI National Radio Science Meeting
Volume2

Conference

Conference1998 IEEE Antennas and Propagation Society International Symposium, APSURSI 1998
CountryUnited States
CityAtlanta
Period21/06/9826/06/98

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