Abstract
An imaging radar based on an electronically displaced-phase-center antenna (eDPCA) has been reported recently, which provides great application potentials in many areas. To overcome the degradation of the SAR image quality caused by the inherent pattern fluctuations of the eDPCA, we propose a modified virtual array method to correct the irregularities in the eDPCA-based system. The effectiveness of the proposed approach is validated through experimental examples on a simulated eDPCA imaging system at 157 GHz.
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