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A Novel Airborne SAR Imaging Method Based on Modified Omega-K Algorithm | IEEE Journals & Magazine | IEEE Xplore

A Novel Airborne SAR Imaging Method Based on Modified Omega-K Algorithm


Abstract:

In this letter, a high-resolution synthetic aperture radar (SAR) imaging algorithm based on a modified omega-K algorithm is proposed. The proposed algorithm first multipl...Show More

Abstract:

In this letter, a high-resolution synthetic aperture radar (SAR) imaging algorithm based on a modified omega-K algorithm is proposed. The proposed algorithm first multiplies the reference signal. Then, the azimuth nonstationary phase error (ANSPE) is considered after performing the interpolation process based on the generalized frequency scale transformation. Finally, a well-focused SAR image can be obtained after compensating the ANSPE and correcting the residual spatial variant range migration by utilizing the range segmentation technique. The simulation results of point targets and the real-measured airborne high-resolution SAR data simultaneously verify the effectiveness and feasibility of the proposed algorithm.
Published in: IEEE Geoscience and Remote Sensing Letters ( Volume: 20)
Article Sequence Number: 4011605
Date of Publication: 27 September 2023

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