Study on DPCA Sidelobe Clutter Suppression

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Abstract:

Due to the non-smooth movement of the platform, the actual multi-channel SAR system is difficult to satisfy the DPCA condition and it is required to compensate the motion error. Previous studies are only interested in the main lobe clutter suppression performance inside the PRF, while ignoring the sidelobe clutter outside the PRF. This paper theoretically deduces the sidelobe clutter suppression residual by motion error compensation and quantitatively analyzes. Theoretical analysis and simulation results show that: the clutter suppression performance is directly depended on the fractional part of the quotient of motion error than azimuth spatial sampling interval, the results of these studies provides reference for the actual data clutter suppression as well as the SAR system design.

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3206-3210

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May 2014

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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