Low-THz radar, lidar and optical imaging through artificially generated fog

This paper presents an initial experimental investigation into multi-sensor imaging of a test scene through artificially generated fog. The sensor set consists of a high-resolution low-THz imaging radar, a lidar and a stereo optical camera. Images are obtained from each sensor in varying densities of fog and presented herein, along with a description and comparison of the findings. The reason for such a study is to highlight the requirement for inclusion of low-THz imaging radar as part of the next generation of automotive sensing, in order to provide terrain imaging in adverse weather conditions, when optical systems may fail to be effective.