Doppler Measurements Inside of Machines for ISAC at Sub-THz in Industrial Scenarios

The utilization of the sub-THz frequency range for industrial applications has gained relevance in the latest years. The free blocks of available spectrum and the need of implementing high gain radio interfaces result in high resolution systems, ideal for sensing applications as well. This contribution shows novel results on ultra wide-band measurements of Doppler and micro-Doppler at 170 GHz inside industrial machines with the objective of characterizing propagation for integrated sensing and communications. The results have shown complex patterns from the interaction of multiple-paths with different typical Doppler signatures.