A Compressive Microwave Single-Pixel Imager via Binary-State Surfaces

In this work we report progress towards a single pixel microwave radiometric system implemented using a reconfigurable reflectarray of binary-state elements (BSEs). The BSEs are used to randomly modulate the incoming field prior to projecting towards a radiometer. Reconstruction of the scene is then achieved through first-order iterative convex programming algorithms. We describe the design of our modulation patterns and examine an appropriate sparsity-promoting basis using modeled brightness temperature data. Image reconstruction results of the proposed approach are then demonstrated using computational electromagnetic simulations of the reflectarray.