A StepFrequency Radar System for Broadband Microwave Inverse Scattering and Imaging
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Begun in 1973, the Review of Progress in Quantitative Nondestructive Evaluation (QNDE) is the premier international NDE meeting designed to provide an interface between research and early engineering through the presentation of current ideas and results focused on facilitating a rapid transfer to engineering development.
This site provides free, public access to papers presented at the annual QNDE conference between 1983 and 1999, and abstracts for papers presented at the conference since 2001.
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Abstract
Step-frequency radar (SFR) is an attractive alternative to impulse radar for obtaining broadband time-domain scattering data [1]. Through the use of an inverse Fourier transform, the SFR frequency-domain (magnitude and phase) data may be converted into a synthetic time-domain pulse. Time-domain inverse scattering imaging techniques [1–7], , used in conjunction with SFR data collection, may be used to generate images of the permittivity and conductivity profiles of scattering objects, and can provide a useful diagnostic and investigative tool.