Tuesday, April 14, 2020

Abstract-Antenna Phase Error Compensation for Terahertz Coded-Aperture Imaging


Xingyue Liu, Chenggao Luo ,Fengjiao Gan, Hongqiang Wang, Long  Peng, Yu Wang,


https://www.mdpi.com/2079-9292/9/4/628/htm

Coded-aperture antenna plays an important role in terahertz coded-aperture imaging radar system. However, the performance of a system is inevitably affected by the phase errors introduced by the coded-aperture antenna elements. In this paper, we propose a phase error compensation method by deducing a formula to compute all element phase errors accurately. According to the formula, the phase errors can be calibrated by using a calibrator and can be used to compensate the imaging model of the system. Numerical simulations demonstrate that the proposed method can effectively improve the imaging quality when the elemental phase error exceeds  .

No comments: