Publications

Theses

• E. Onat, "Fusion of Interferometry and Radargrammetry Techniques in Synthetic Aperture Radar Images", Ph.D. dissertation, Electrical and Electronics Engineering Department, Hacettepe University, Ankara, Türkiye, 2020. [link]

• E. Onat, "An investigation of radar imaging methods used in fighter aircraft", M.S. Thesis, Electrical and Electronics Engineering Department, Hacettepe University, Ankara, Türkiye, 2014. [link] 

• E. Onat, "Hardware Implementation of a Speech Recognition System Using FPGA", B.S. Thesis, Electrical and Electronics Engineering Department, Boğaziçi University, Istanbul, Türkiye, 2009. [link] 

Patents

1. B. Schonlau, E. Kögel, S. Höppner, F. Neumärker, and E. Onat, "Ethernet device and method for reliable redundant communication links in safety critical applications", 2024. [EP4489333A1], [WO2025008113A1]

2. D. Kumar, S. Höppner, S. Hartmann, and E. Onat, "Method and Ethernet physical layer device for detecting, classifying and localizing cable faults of an ethernet physical cable, particularly an automotive ethernet phy, using a time domain reflectometry algorithm", 2023. [EP4414723A1], [US20240272218A1]

Journal Articles

1. E. Onat, "High-Resolution Direction Finding on Uniform Linear Arrays: A Comparative Evaluation of MUSIC Algorithm Derivatives", Gazi Üniversitesi Fen Bilimleri Dergisi Part C: Tasarım Ve Teknoloji, 13 (3), 1-20, 2025. https://doi.org/10.29109/gujsc.1696029  [data & code]  

2. E. Onat and Y. Özkazanç, "Hybrid-Level Fusion of Radar Imaging Methods", International Journal of Engineering and Geosciences, 11 (1), 1-20, 2025. https://doi.org/10.26833/ijeg.1611426   [data & code]  

3. E. Onat, "RISPECNet: A geometry independent deep learning oriented method for coherent and non-coherent signal number estimation", Journal of the Franklin Institute, vol. 362, no. 9, p. 107707, 2025. https://doi.org/10.1016/j.jfranklin.2025.107707

4. Z. Deprem and E. Onat, "Phase unwrapping via hierarchical and balanced residue partitioning", Signal, Image and Video Processing, vol. 18, no. 3, pp. 2895 - 2902, Apr. 2024. https://doi.org/10.1007/s11760-023-02958-5  [data & code]  

5. E. Nurbaş, E. Onat, and T. E. Tuncer, "Collaborative Direction of Arrival estimation by using Alternating Direction Method of Multipliers in distributed sensor array networks employing Sparse Bayesian Learning framework", Digital Signal Processing, vol. 130, p. 103739, 2022. https://doi.org/10.1016/j.dsp.2022.103739 [code] 

6. A. Ozgur, A. Y. Ucgul, M. O. Cubuk, E. Onat, K. Serbest Ceylanoglu, B. Aydin, E. Yuksel, "Descemet’s membrane area and posterior corneal power may predict the Descemet membrane folds after deep anterior lamellar keratoplasty in patients with advanced keratoconus", Int Ophthalmol, vol. 41, p. 4017 - 4024, 2021. https://doi.org/10.1007/s10792-021-01974-z  

International Conference Papers

1. E. Onat and A. Orduyilmaz, "The Effect of Phase Noise on Radar Waveforms and Performance Analysis," 2025 33rd Signal Processing and Communications Applications Conference (SIU), Sile, Istanbul, Turkiye, 2025, pp. 1-4, doi: 10.1109/SIU66497.2025.11111835.

2. S. Benli, C. Kasnakoglu, and E. Onat, "Development of a Hardware-in-the-Loop Simulation and Test Infrastructure for an Electro-Optical System Integrated into a Bank-to-Turn Air Vehicle Using Proportional Navigation", ITBM&S 2025 - The International Workshop on Infrared Target and Background Modeling and Simulation, Ettlingen, Germany, 2025.

3. H. I. Akçay, T. Girici and E. Onat, "Spoofing Detection and Anti-Spoofing Kalman Filter Design for an Accelerometer-Integrated GNSS Receiver," 2023 IEEE 31st Signal Processing and Communications Applications Conference (SIU), Istanbul, Türkiye, 2023, pp. 1-4, doi: 10.1109/SIU59756.2023.10223944.

1. A. O. Sakin, A. C. Songur and E. Onat, "Combining Genetic Algorithm Based Joint Time-Frequency Analysis and Keystone Transform for ISAR Image Enhancement," EUSAR 2022; 14th European Conference on Synthetic Aperture Radar, Leipzig, Germany, 2022, pp. 1-6. [link]

2. H. I. Akçay and E. Onat, "Kalman Filter Design For Spoofing Detection and Anti-Spoofing in GNSS Receivers", ICAT 2022; 10th International Conference on Advanced Technologies, Van, Türkiye, 2022. [link]

3. H. I. Akçay and E. Onat, "Position and Velocity Detection with RADAR and GPS Fusion," 2022 IEEE 30th Signal Processing and Communications Applications Conference (SIU), Safranbolu, Turkey, 2022, pp. 1-4, doi: 10.1109/SIU55565.2022.9864793.

4. E. Nurbaş and E. Onat, "Localization by using Deep Neural Networks for Long Range Target," 2021 IEEE 29th Signal Processing and Communications Applications Conference (SIU), Istanbul, Turkey, 2021, pp. 1-4, doi: 10.1109/SIU53274.2021.9477919.

5. E. Nurbaş, E. Onat and T. E. Tuncer, "Number of Sources, Bandwidth, Signal to Noise Ratio and Noise Variance Level Estimation for Narrowband Signals," 2021 IEEE 29th Signal Processing and Communications Applications Conference (SIU), Istanbul, Turkey, 2021, pp. 1-4, doi: 10.1109/SIU53274.2021.9477996.

6. E. Onat and Y. Özkazanç, "Topographic Map Generation Using Synthetic Aperture Radar Images Via Interferometry (InSAR) Technique," 2020 IEEE 28th Signal Processing and Communications Applications Conference (SIU), Gaziantep, Turkey, 2020. [link]

7. E. Onat and Y. Özkazanç, "An Analysis on Path Following Phase Unwrapping Algorithms," 2020 IEEE 28th Signal Processing and Communications Applications Conference (SIU), Gaziantep, Turkey, 2020, pp. 1-4, doi: 10.1109/SIU49456.2020.9302505.

8. E. Nurbaş and E. Onat, "Direction of Arrival Estimation by Using Deep Autoencoder Network," 2020 IEEE 28th Signal Processing and Communications Applications Conference (SIU), Gaziantep, Turkey, 2020, pp. 1-4, doi: 10.1109/SIU49456.2020.9302422.

9. F. A. Uçkun, H. Özer, E. Nurbaş and E. Onat, "Direction Finding Using Convolutional Neural Networks and Convolutional Recurrent Neural Networks," 2020 IEEE 28th Signal Processing and Communications Applications Conference (SIU), Gaziantep, Turkey, 2020, pp. 1-4, doi: 10.1109/SIU49456.2020.9302448.

10. E. Nurbaş, E. Onat and T. E. Tuncer, "Comparative Analysis of MUSIC and ESPRIT Direction Finding Algorithms with Linear and Planar Antenna Geometry," 2019 IEEE 27th Signal Processing and Communications Applications Conference (SIU), Sivas, Turkey, 2019. [link]

11. E. Nurbaş, E. Onat and T. E. Tuncer, "Performance Analysis of MUSIC and ESPRIT Direction Finding Algorithms in Interference Environment," 2019 IEEE 27th Signal Processing and Communications Applications Conference (SIU), Sivas, Turkey, 2019. [link]

12. E. Onat, "FPGA implementation of target detection algorithm at real time video signal processing using harris corner detector filter," 2018 IEEE 26th Signal Processing and Communications Applications Conference (SIU), Izmir, Turkey, 2018, pp. 1-4, doi: 10.1109/SIU.2018.8404520.

13. E. Onat and Y. Özkazanç, "An analysis of Doppler beam sharpening technique used in fighter aircraft," 2018 IEEE 26th Signal Processing and Communications Applications Conference (SIU), Izmir, Turkey, 2018, pp. 1-4, doi: 10.1109/SIU.2018.8404521.

14. E. Onat, "FPGA implementation of real time video signal processing using Sobel, Robert, Prewitt and Laplacian filters," 2017 IEEE 25th Signal Processing and Communications Applications Conference (SIU), Antalya, Turkey, 2017, pp. 1-4, doi: 10.1109/SIU.2017.7960586.

15. E. Onat and Ü. Üzdi̇l, "Traffic sign classification using hough transform and SVM," 2015 IEEE 23nd Signal Processing and Communications Applications Conference (SIU), Malatya, Turkey, 2015, pp. 2161 - 2165, doi: 10.1109/SIU.2015.7130301.

16. M. Serin, E. Onat, A. Orduyılmaz, A. Yıldırım and M. A. Şahin, "Amplitude and phase difference tolerance analysis of cross-eye jamming technique," 2013 IEEE 21st Signal Processing and Communications Applications Conference (SIU), Haspolat, Turkey, 2013, pp. 1-4, doi: 10.1109/SIU.2013.6531393.

17. Ö. Özdil, M. İspir, E. Onat and A. Yıldırım, "Implementation of FPGA-based FFT convolution," IET International Conference on Radar Systems (Radar 2012), Glasgow, UK, 2012, pp. 1-4, doi: 10.1049/cp.2012.1728.

18. E. Onat, Ö. Özdi̇l, M. İspi̇r and M. Seri̇n, "Implementation of Doppler noise jamming techniques using DRFM," 2012 IEEE 20th Signal Processing and Communications Applications Conference (SIU), Mugla, Turkey, 2012, pp. 1-4, doi: 10.1109/SIU.2012.6204592.

19. Ö. Özdil, M. İspir, E. Onat and A. Yıldırım, "Automated fixed-point precision optimization," 2012 IEEE 20th Signal Processing and Communications Applications Conference (SIU), Mugla, Turkey, 2012, pp. 1-4, doi: 10.1109/SIU.2012.6204532.

20. Ö. Özdil, M. İspir, E. Onat and A. Yıldırım, "Implementation of a FPGA-based overlap-add filter," 2012 IEEE 20th Signal Processing and Communications Applications Conference (SIU), Mugla, Turkey, 2012, pp. 1-4, doi: 10.1109/SIU.2012.6204534.

21. M. İspir, Ö. Özdil, E. Onat and A. Yıldırım, "K-distributed radar clutter sequence generator on FPGA," 2012 IEEE 20th Signal Processing and Communications Applications Conference (SIU), Mugla, Turkey, 2012, pp. 1-4, doi: 10.1109/SIU.2012.6204549.

22. E. Onat and M. Serin, "Implementation of digital pulse doppler radar signal generator and receiver," 2011 IEEE 19th Signal Processing and Communications Applications Conference (SIU), Antalya, Turkey, 2011, pp. 710-713, doi: 10.1109/SIU.2011.5929749.

National Conference Papers

1. E. Onat, E. Nurbaş, Y. Özkazanç, "Yol İzleme Tabanlı Katlı Faz Açma Algoritmalarından Goldstein Branch-cut ve Flynn En Küçük Süreksizlik Yaklaşımının Performans Analizleri", BAŞARIM – 6. Ulusal Yüksek Başarımlı Hesaplama Konferansı, Ankara, Turkey, 2020. [link] [link] 

2. E. Onat, "Sobel Filtre Kullanarak Gerçek Zamanlı Video Sinyallerinin İşlenmesinin FPGA’da Gerçeklenmesi," SAVTEK – Savunma Teknolojileri Kongresi,  Ankara, Turkey, 2016. [link]

3. E. Onat, "Gerçek Zamanlı Semboloji Üreteç Bilgisayarı Geliştirilmesi," SAVTEK – Savunma Teknolojileri Kongresi, Ankara, Turkey, 2016. [link]

4. A. Yavuz Konuslu, E. Onat, A. Kurtoğlu, B. Sezer, "Uydu SAR İnterferometri ve Görüntü İstihbaratı Uygulamaları," SAVTEK – Savunma Teknolojileri Kongresi, Ankara, Turkey, 2016. [link]

5. M. Ergül, F. Nar, E. Onat, Ç. Bak, N. Şen, "Hiperspektral Görüntülerde Gürültülü Bantların Bilişim Kuramsal Yaklaşımla Otomatik Tespiti," SAVTEK – Savunma Teknolojileri Kongresi, Ankara, Turkey, 2016. [link]