A parallel processing system for measuring 3D surface profile using RF spectrogram

A scanning system was constructed for detecting 3D profile of a whole body using an RF antenna array and a parallel processing unit. The antenna array generated signals whose information indicated reflection from a target object. The signals in the array were produced during rotation and sampled with triggers by a high speed ADC. The sampled data was transferred to a parallel processing unit. Large number of the triggers and the amount of mathematical computation of frequency analysis forms gigabytes of data size. We showed that the parallel processing unit is useful and time-efficient to detect the 3D profile of whole body by millimeter wave imaging.