ISAR Sparse Aperture Imaging Algorithm for Large Size Target

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Abstract A novel algorithm for larger size target imaging in sparse aperture is presented in this paper for Inverse Synthetic Aperture Radar (ISAR). In the proposed method, azimuth compressing is done in the range frequency domain to avoid Migration Through Range Cell (MTRC), and Compress Sensing (CS) is introduced to take place of FFT to reduce the Peak Side Lobe Ratio (PSLR), meanwhile a basis matrix changing with the range frequency is constructed to eliminate the coupling between range frequency and azimuth time. Simulation results validate the feasibility of the approach.

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	Zhong Li-hua
	Hu Dong-hui
	Ding Chi-biao
	Zhang Wen-yi

Key words： Migration Through Range Cell (MTRC) Peak Side Lobe Ratio (PSLR) Compress Sensing (CS) Sparse aperture Inverse Synthetic Aperture Radar (ISAR)

Received: 2012-05-10; Published: 2012-08-23

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Zhong Li-hua,Hu Dong-hui,Ding Chi-biao et al. ISAR Sparse Aperture Imaging Algorithm for Large Size Target[J]. JOURNAL OF RADARS, 2012, 1(3): 292-300.

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