A coding method for single-channel passive millmeter wave imaging based on cyclic S matrix

Single-pixel Passive Millimeter Wave (PMMW) imaging system has drawn much attention for its low cost and low complexity. Nowadays, researchers put more effort into the study of the single-pixel PMMW imaging technology as the wide application of Compressive Sensing technology. Previous studies have indicated that the key of the single-pixel imaging technology is the design of coding template. In most studies, a large number of single-templates are applied for coding sampling. These kinds of methods are not suitable for engineering applications due to their low imaging speed. Therefore, a coding method based on quasi cyclic S matrix is proposed, and a novel coding template is designed to improve the imaging speed in this paper. The algorithms of OMP and TVAL3 simulation results in MaTLAB verity the effectiveness of the proposed method.