Cyclic Prefix-Based OFDM ISAR Imaging

In recent years, orthogonal frequency-division multiplexing (OFDM) synthetic aperture radar (SAR) imaging has been introduced and an inter-range-cell interference (IRCI) free OFDM SAR has also been proposed. In this paper, we use this idea and propose an IRCI free cyclic prefix (CP)-based OFDM inver...

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Bibliographic Details
Published in:Iranian journal of science and technology. Transactions of electrical engineering 2018-06, Vol.42 (2), p.239-249
Main Authors: Hashempour, Hamid Reza, Masnadi-Shirazi, Mohmmad Ali, Sheikhi, Abbas
Format: Article
Language:English
Subjects:
Algorithms
Computer simulation
Electrical Engineering
Engineering
Entropy
Frequency division multiplexing
Inverse synthetic aperture radar
Orthogonal Frequency Division Multiplexing
Parameter estimation
Radar
Radar imaging
Research Paper
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Summary:In recent years, orthogonal frequency-division multiplexing (OFDM) synthetic aperture radar (SAR) imaging has been introduced and an inter-range-cell interference (IRCI) free OFDM SAR has also been proposed. In this paper, we use this idea and propose an IRCI free cyclic prefix (CP)-based OFDM inverse synthetic aperture radar (ISAR) imaging which provides a high range resolution ISAR image. However, in order to use this algorithm, the motion parameters of target should be determined. Thus, before applying the algorithm, the motion parameters are estimated through proposing an iterative entropy-based method (IEBM). The proposed imaging algorithm and the IEBM are verified by simulations for CP-based OFDM ISAR.
ISSN:2228-6179
2364-1827
DOI:10.1007/s40998-018-0057-5