Hybrid Method combining RMT and ABP Algorithm for Microwave Imaging

摘要

Microwave imaging is a technique aimed at sensing a given region by means of interrogating electromagnetic waves. In practice, the range migration technique (RMT) as a kind of synthetic aperture radar (SAR) imaging algorithm has a high computational efficiency and accuracy in reconstruction. However, this approach involves a frequency domain interpolation, which may adversely affect the accuracy of image reconstruction. The back-projection (BP) algorithm originated from medical imaging techniques achieves fine reconstructed images because it avoids frequency domain interpolation, but usually has a huge computational cost. To overcome these disadvantages, this paper proposes the hybrid method combining RMT and adaptive BP (ABP) algorithm for reconstruction with high-quality. Then, simulated and experimental data are obtained to validate the performance of the proposed algorithm.