A study on THz array radar imaging method

Terahertz (THz) radar has developed a lot in recent years. Its ability for near field security inspection becomes a popular research topic. However, the phase errors caused by THz radar's motion are difficult to compensate due to the submillimeter wavelength, which means a tiny motion error will bring a huge phase deviation. In this paper, we report a crossed array radar imaging method, which employs fixed TX- and RX-elements collecting real-time data to avoid the phase errors caused by radar's motion. The imaging reconstruction are deduced in matched-filter and spatial frequency domain approach. Furthermore, the numerical simulation results are conducted to demonstrate the performance of this imaging method.

[1]  G. Chattopadhyay Terahertz science, technology, and communication , 2012, 2012 5th International Conference on Computers and Devices for Communication (CODEC).

[2]  Thomas E. Hall,et al.  Cylindrical millimeter-wave imaging technique and applications , 2006, SPIE Defense + Commercial Sensing.

[3]  Lorenz-Peter Schmidt,et al.  A technology demonstrator for a 0.5 m x 0.5 m fully electronic digital beamforming mm-Wave imaging system , 2011, Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP).

[4]  Patrick Lj Valdez,et al.  Standoff concealed weapon detection using a 350-GHz radar imaging system , 2010, Defense + Commercial Sensing.

[5]  Yiming Pi,et al.  Terahertz imaging radar with aperture synthetic techniques for object detection , 2013, 2013 IEEE International Conference on Communications Workshops (ICC).