Adaptive 3D Imaging for Moving Targets Based on a SIMO InISAR Imaging System in 0.2 THz Band

Terahertz (THz) imaging technology has received increased attention in recent years and been widely applied, whereas the three-dimensional (3D) for moving targets remains to be solved. In this paper, an adaptive 3D scheme is proposed based on a single input multi-output (SIMO) interferometric inverse synthetic aperture radar (InISAR) system achieve images of THz band. With specially designed SIMO antenna array, angular information can determined using phase response difference different receiving channels, which then enables accurate tracking by adaptively adjusting beam direction. On basis stable tracking, high-resolution achieved. A combined motion compensation method produce well-focused coherent (ISAR) from performed, thus forming results. Lastly, proof-of-principle experiments were performed with 0.2 system, verifying effectiveness scheme. Non-cooperative accurately tracked obtained clearly identify targets. Moreover, dynamic results The promising demonstrate superiority over existing systems realizing shows great potential detecting monitoring non-cooperative movement, including unmanned military vehicles space debris.