Abstract
The main purpose of our research is to build a security system that checks the possession of dangerous materials using millimeter-wave radar with a small number of elements and observation points, and to realize 3D imaging. As a study to perform high-definition imaging with a small number of antenna elements, we applied virtual array processing of Khatri-Rao (KR) products. However, the virtual array processing of KR products assumes uncorrelated wave incidence in principle [2]. Therefore, in this paper, we showed how the correlation affects 2D imaging by KR processing when the correlation wave arrives. The results show that the imaging quality depends on not only the magnitude of correlation coefficient but also phase of it.
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