Electronics Optics & Control, Volume. 23, Issue 10, 71(2016)

A Method for Doppler Shifting Correction of FMCW CSAR Imaging

SONG De-peng... FU Kai-cheng, QU Yi and SHI Ting |Show fewer author(s)
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    The go-stop mode is not suitable for Frequency Modulated Continuous Wave Circular Synthetic Aperture Radar(FMCW CSAR), the Doppler shifting caused by motion of the carrier aircraft has a great effect on the quality of imaging under large-scale, high-velocity condition.The compensation functions of linear SAR are not applicable due to the continuous change of the velocity direction.To solve the problem, we established an accurate signal receiving model, deduced the Doppler shifting in FMCW CSAR, analyzed the effect of the motion radius and velocity on Doppler shifting, and proposed a new compensation function to revise the Doppler shifting.Simulation results proved that the function can correct the Doppler shifting effectively.

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    SONG De-peng, FU Kai-cheng, QU Yi, SHI Ting. A Method for Doppler Shifting Correction of FMCW CSAR Imaging[J]. Electronics Optics & Control, 2016, 23(10): 71

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    Paper Information

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    Received: Dec. 4, 2015

    Accepted: --

    Published Online: Nov. 18, 2016

    The Author Email:

    DOI:10.3969/j.issn.1671-637x.2016.10.015

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