Experimental Validation of Uniformly Undersampled Imaging in 6G D-Band with Interpolation Techniques
Journal
2025 16th German Microwave Conference (GeMiC)
Start Page
64-67
Date Issued
2025-03-17
Author(s)
Abstract
This article presents an experimental setup and validation of interpolation techniques for uniformly undersampled D-band planar imaging. Interpolation techniques, including our previously proposed rational thin-plate spline (RTPS) and the bicubic methods, are implemented on the scattered echoes, to mitigate spatial aliasing in reconstructed images. The reconstructed 2-D images are evaluated in both simulations and practical imaging scenarios to verify the achievable cross-range resolution. Both RTPS and bicubic interpolation demonstrated effectiveness for a uniform receiver array with sub-Nyquist spatial sampling interval of 1λc. Imaging results show that the developed system can achieve millimeter-scale localization of targets with 1λc length at 150 GHz and resolve targets separated 2λc apart.
Publisher
IEEE
Type
conference proceedings