Target Detection Using Photonics-Driven Robust Waveforms in Interference-Prone Radar Networks
Nakarmi B. Rezwanul Islam S.M. Zhijie S. Augustine Ukaegbu I. Ashimbayeva A. Molardi C. Subash T.D. Rashidi Che Beson M. Pan S.
2026Institute of Electrical and Electronics Engineers Inc.
IEEE Transactions on Microwave Theory and Techniques
2026#74Issue 32819 - 2832 pp.
This article explores the impact of interference and intrusion on the performance of target object detection and range measurement in an interference-prone radio detection and ranging (RADAR) environment. As RADAR applications expand, managing interference becomes crucial to prevent false detections and resolution deterioration, ensuring safe and secure operations in multiradar environments. Conventional linear frequency-modulated (LFM)-based radar under interference experiences significant degradation in radar detection performance, including false detections and increased noise levels. To address these challenges, we used photonics-driven robust waveforms (PDRWs), specifically frequency-hopping LFM (Ph-FHLFM)- and multichirp LFM (Ph-MCLFM)-based, achieved by manipulating optical beam intensity in a semiconductor laser. In this article, we used both types of PDRWs (Ph-FHLFM and Ph-MCLFM) to demonstrate their interference resilience capability in target detection through theoretical analysis, MATLAB simulation, and the laboratory experiment under interference conditions, irrespective of the type of interference. The analysis shows the interference resilience capability of both types of PDRWs regardless of the interference types. The results illustrate that both waveforms effectively mitigate coherent and non-coherent interferences, thus maintaining accurate target detection with a maximum range error of 3 mm and maximum linewidth of 2.5 cm, while achieving minimum peak-to-sidelobe level (PSL) improvement of over 10 dB compared to conventional Ph-LFM radar. Additionally, we show the advantages of photonics-based radar with PDRWs over other technologies and hence underscore the potential of PDRWs in enhancing the resilience of RADAR system against interference in complex operational environments.
Interference mitigation , linear frequency modulation , optical injection , photonics radar , robust waveforms
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Nanjing University of Aeronautics and Astronautics, Key Laboratory of Radar Imaging and Microwave Photonics, Ministry of Education, Nanjing, 210016, China
Nazarbayev University, School of Engineering and Digital Sciences, Electrical and Computer Engineering Department, Astana, 010000, Kazakhstan
University of West Alabama, Division of Engineering Technology, Livingston, 35470, AL, United States
Zhejiang Ocean University, School of Marine Engineering Equipment, Zhejiang, Zhoushan, 316000, China
Universiti Malaysia Perlis, Faculty of Electronic Engineering & Technology, Arau, Perlis, 02600, Malaysia
Nanjing University of Aeronautics and Astronautics
Nazarbayev University
University of West Alabama
Zhejiang Ocean University
Universiti Malaysia Perlis
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