Sensor Arrangement in Through-the Wall Radar Imaging | IEEE Journals & Magazine | IEEE Xplore

Sensor Arrangement in Through-the Wall Radar Imaging


Abstract:

In this paper, the problem of how to spatially sample the scattered field in microwave through-the wall imaging is addressed. To this end, a two-dimensional scalar config...Show More
Topic: Unconventional techniques and applications for electromagnetic inverse problems

Abstract:

In this paper, the problem of how to spatially sample the scattered field in microwave through-the wall imaging is addressed. To this end, a two-dimensional scalar configuration for a three-layered back-ground medium is considered under a linearized scattering model. The aim is to collect as low as possible measurements by maintaining the same performance in the reconstructions. Accordingly, the number and the positions of the spatial measurement points are determined so that the point-spread function of the resulting semi-discrete problem approximates well the one of the ideal continuous case (i.e., when data space is not sampled at all). It is shown that the resulting measurement spatial positions must be non-uniformly arranged across the measurement domain and their number is generally much lower than the one returned by some literature sampling criteria. Also, the measurement points can be analytically determined by taking into account the geometrical parameters as well as the wall features. Numerical examples are included to check the theoretical arguments.
Topic: Unconventional techniques and applications for electromagnetic inverse problems
Page(s): 333 - 341
Date of Publication: 14 March 2022
Electronic ISSN: 2637-6431

References

References is not available for this document.