Abstract

This paper presents a single-pixel millimeter-wave (mm-wave) imaging system, capable of performing spectral coding by using a Compressive Reflector Antenna (CRA). The CRA is designed by coating the surface of a parabolic reflector with 8-bits metamaterial absorbers (MMAs). By specially designing the codes, the mutual information between successive measurements is reduced, leading to an enhanced sensing capacity. The imaging performance of the proposed mm-wave imaging system is evaluated using synthetic data. Preliminary results show that the proposed 8-bits metamaterial-based CRA system outperforms the equivalent one without MMAs in terms of imaging quality and sensing capacity.

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