A Digital Interferometric Array with Active Noise Illumination for Millimeter-Wave Imaging at 13.7fps
We present millimeter-wave imagery at 13.7 frames-per-second (fps) using a digital 16-element interferometric antenna array operating at 37 GHz. The scene is illuminated incoherently using three low-cost noise transmitters, mimicking the properties of thermal radiation. The array is based on commercial components and 3D-printed horn antennas. The system architecture is presented, along with the signal processing algorithm, and real-time imaging results.