Enhanced range-doppler algorithm for SAR image formation
Sakr, M., Amein, A., Ahmed, F., Amer, G., Youssef, A. (2023). Enhanced range-doppler algorithm for SAR image formation. EKB Journal Management System, 20(20), 1-12. doi: 10.1088/1742-6596/2616/1/012033
M Sakr; A S Amein; F M Ahmed; G M Amer; A Youssef. "Enhanced range-doppler algorithm for SAR image formation". EKB Journal Management System, 20, 20, 2023, 1-12. doi: 10.1088/1742-6596/2616/1/012033
Sakr, M., Amein, A., Ahmed, F., Amer, G., Youssef, A. (2023). 'Enhanced range-doppler algorithm for SAR image formation', EKB Journal Management System, 20(20), pp. 1-12. doi: 10.1088/1742-6596/2616/1/012033
Sakr, M., Amein, A., Ahmed, F., Amer, G., Youssef, A. Enhanced range-doppler algorithm for SAR image formation. EKB Journal Management System, 2023; 20(20): 1-12. doi: 10.1088/1742-6596/2616/1/012033

Enhanced range-doppler algorithm for SAR image formation

International Conference on Aerospace Sciences and Aviation Technology
Volume 20, Issue 20, May 2023, Page 1-12  XML PDF (2.88 MB)
Document Type: Original Article
DOI: 10.1088/1742-6596/2616/1/012033
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Authors
M Sakr email 1; A S Amein2; F M Ahmed1; G M Amer3; A Youssef1
1Electrical Engineering, Military Technical College, Cairo, Egypt.
2Faculty of Information and Computer Science, October 6 University, Giza, Egypt.
3Electrical Engineering, Faculty of Engineering, MUST University, Giza, Egypt.
Abstract
A Synthetic Aperture Radar (SAR) system is a powerful source of information due to its capability to operate day and night and in all weather conditions. It is essential for military and civilian purposes. Pulse-focusing is employed by the SAR system for achieving both long-range detection and fine-range resolution. The Range-Doppler Algorithm (RDA) is the most popular pulse-focusing technique for creating images from coherent SAR data. Pulse compression techniques for SAR signal processing targets seek to improve map resolution, lower peak power, and increase the Signal-to-
Noise Ratio (SNR) of the detected object. This paper demonstrates an enhanced RDA algorithm that uses a modified pulse compression technique based on mismatched filter optimization where Quadratic Constrained Quadratic Program (QCQP) is used. The performance evaluation of the proposed method is performed using visual assessment and the standard image quality metrics peak-side-lobe-ratio (PSLR), impulse-responsewidth (IRW), and integrated-side-lobe-ratio (ISLR). Simulated and real SAR raw data are used for performance evaluation. The experimental results demonstrate the proposed method’s robustness, efficiency, and reliability in providing a higher-quality SAR image than the traditional RDA algorithm.
Keywords
Synthetic Aperture Radar (SAR); Pulse Compression; Range-Doppler Algorithm; Convex Optimization; Side Lobe Level
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