Resolution Limits in Near-Distance Microwave Holographic Imaging for Safer and More Autonomous Vehicles

Highlights: High sensitivity spin diodes as wave sensors are compact and cost effective devices for objects detection in different scenarios and weather conditions. Holographic reconstruction allows seeing the 3D density of the objects, indicating different materials-stone, flesh, metal, wood, etc. A computationally efficient holographic imaging and obstacle detection algorithm were targeted for use in a non-optical setting with a single coherent emitter and few detection sensors. The detection distances and spatial resolution proved sufficient for near-vehicle object detection purposes.