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Automatic and Non-iteration Algorithm for Compensating the Phase Error for SAR based on the PGA Algorithm

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Abstract

Although many improvements have been made to synthetic aperture radar navigation systems؛ However, it is still not possible to eliminate all the phase errors caused by the unintentional movement of the platform with these systems. Therefore, automatic phase correction algorithms were invented, the most widely used of which is the Phase Gradient Autofocus algorithm that called PGA. This algorithm has some drawbacks despite its good performance. The most important of these is the iterative of this algorithm, which requires high computational time. In addition, the uncertainty in the optimality of the output answer in a constant number of iterations is high. The work done so far has not been able to provide a conclusive single iteration algorithm and has often been clearly achieved in one iteration in certain modes of data. This paper presents an automated algorithm that compensates for PGA based phase error without iteration better than previous methods.

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Authors and Affiliations

  1. Department of Electronic and Communication, Faculty of Engineering, University of Kufa, Kufa, Iraq

    Mohammed Jawad Al-dujaili

  2. Department of Laser and Electro Optics Technical Engineering, Technical Engineering College\Najaf, Al-Furat Al-Awsat Technical University (ATU), Najaf, Iraq

    Haidar Zaeer Dhaam

  3. Najaf Provincial Council, Najaf, Iraq

    Mushtaq Talib Mezeel

Authors
  1. Mohammed Jawad Al-dujaili
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  2. Haidar Zaeer Dhaam
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  3. Mushtaq Talib Mezeel
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Correspondence to Mohammed Jawad Al-dujaili.

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Al-dujaili, M.J., Dhaam, H.Z. & Mezeel, M.T. Automatic and Non-iteration Algorithm for Compensating the Phase Error for SAR based on the PGA Algorithm. Sens Imaging 24, 13 (2023). https://doi.org/10.1007/s11220-023-00419-4

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  • DOI: https://doi.org/10.1007/s11220-023-00419-4

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