Synthetic aperture signal processing for high resolution 3D image reconstruction in the THz-domain

The purpose of this paper is to demonstrate the application of synthetic aperture imaging used in radar and sonar to the terahertz (THz) domain and to create high resolution three-dimensional images. For this demonstration the paper presents images - based on simulated data - which reveal the performance to be expected of synthetic aperture imaging for different frequencies in the THz band. The processed target responses of pulsed broadband radiation show high resolution which can lead to an improvement of non-destructive defect identification.