Abstract
This paper focuses on the motion parameters estimation and inversed synthetic aperture radar (ISAR) imaging for the high-speed spinning targets via the time-frequency characteristics. Assuming that the translational motion is compensated with the available motion compensation techniques, then the residual part of translational motion and the spinning motion are estimated with high precision based on the time-frequency characteristics. Combining with the procedure of the motion estimation, a novel coherent time-frequency spectrum intensity redistribution method, coherent single range Doppler interferometry (CSRDI), is proposed, which provides higher resolution and sustain lower signal to noise rate (SNR) than the current approach. Numerical simulation confirms the validity and high precision of the proposed approaches.
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Zhang, L., Li, Y., Liu, Y. et al. Time-frequency characteristics based motion estimation and imaging for high speed spinning targets via narrowband waveforms. Sci. China Inf. Sci. 53, 1628–1640 (2010). https://doi.org/10.1007/s11432-010-4027-4
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DOI: https://doi.org/10.1007/s11432-010-4027-4