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Wall penetration of the electromagnetic wave causes target image defocused and displaced from its true position in through-wall radar imaging. To solve this problem, this letter proposes an approximate wall compensation algorithm, named the refraction angle approximation algorithm, which assumes that the actual refraction angle is approximately equal to the one whose incidence angle is the azimuth...
In this paper, we consider the problem of multipath ghosts location and suppression using a through-wall imaging radar (TWIR). Specifically, first, in a SAR system, a multipath model in an enclosed room is derived. Second, based on this model, we develop a multipath ghosts location method and analyze the relationship between ghosts and the locations of antenna arrays. Then, we propose a suppression...
Ellipse-cross-localization (ECL) method is presented for TWR location in this paper. The location error is mainly influenced by errors of the wall parameters and the target relative position to antennas. The effect of wall thickness and dielectric constant on TWR localization is analyzed. And the localization accuracy of detection region in different antennas configurations is illustrated by location...
Based on imaging through assumed wall parameters, an approach of target localization for through-the-wall radar in the presence of wall ambiguities is proposed. The target location is estimated by finding the maximum pixel point in composite image which is composed by image sequences corresponding to different assumed wall parameters. The proposed approach is available for target localization with...
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