RF Photonic Inverse Synthetic Aperture Radar Imaging With Motion Compensation

RF photonics has emerged as a powerful tool for measuring the reflection cross section of complex and large electromagnetic structures. In this study, we have developed a comprehensive theoretical framework and a novel inverse synthetic aperture radar (ISAR) image processing algorithm that can accur...

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Bibliographic Details
Published in:Journal of lightwave technology 2023-12, Vol.41 (23), p.7253-7259
Main Authors: De Pra, Lucio, Benker, Michael J., Manzur, Tariq, Li, Yifei
Format: Article
Language:English
Subjects:
Adaptive optics
Algorithms
Autocorrelation
coherent receiver
Doppler effect
Image processing
Inverse synthetic aperture radar
monostatic radar
Motion compensation
Optical coupling
optical hybrid coupler
Optical imaging
Optical noise
Optical receivers
Photonics
Radar cross-sections
Radar imaging
Three dimensional printing
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Summary:RF photonics has emerged as a powerful tool for measuring the reflection cross section of complex and large electromagnetic structures. In this study, we have developed a comprehensive theoretical framework and a novel inverse synthetic aperture radar (ISAR) image processing algorithm that can accurately emulate ISAR images. To validate the effectiveness of our approach, we conducted proof-of-concept measurements on a 3D Nanoscribe printed ship model using a benchtop measurement system. By processing the captured baseband signals from the coherent optical receiver, we successfully constructed the first motion-compensated optical ISAR image. The motion-compensation algorithm we employed allowed for longer coherent processing time, which resulted in better cross-range resolution and a sharper image.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2023.3310504