Filtering methods for different characteristic stripe noise in SAR image

doi:10.11834/jrs.20110101

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Filtering methods for different characteristic stripe noise in SAR image
Vol. 15, Issue 1, Pages: 1-12(2011)
Published： 2011 ，
DOI： 10.11834/jrs.20110101

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[1]寇光杰,王贞松,姚萍.SAR图像中不同特性条纹噪声的滤除[J].遥感学报,2011,15(01):1-12.

Filtering methods for different characteristic stripe noise in SAR image. [J]. Journal of Remote Sensing 15(1):1-12(2011)
[1]寇光杰,王贞松,姚萍.SAR图像中不同特性条纹噪声的滤除[J].遥感学报,2011,15(01):1-12. DOI： 10.11834/jrs.20110101.

Filtering methods for different characteristic stripe noise in SAR image. [J]. Journal of Remote Sensing 15(1):1-12(2011) DOI： 10.11834/jrs.20110101.

摘要

分析Burst工作模式星载SAR系统中

采用全孔径成像算法会产生周期性明暗条纹噪声的原因

提出一种简单高效的一维频域滤除算法

并给出包含该操作的改进距离多普勒成像算法流程。对于因雷达系统本身原因而产生的一些非周期不规则条纹噪声进行讨论

针对此类噪声提出一种二维频域区域滤波的算法。通过对实际星载SAR数据的处理

验证算法的有效性。

Abstract

We analize the reason of periodic bright and shadow stripe noise generated in burst mode SAR

when the full aperture imaging algorithm is used.A simple but efficient one-dimensional frequency domain filtering method is proposed along with the flow chart of improved Range Doppler imaging algorithm including this operation.We discuss the nonperiodic abnormal stripe noise due to the spaceborne SAR system itself

and present an area filtering method in two-dimensional frequency domain.The validities of the algorithms in the paper are proved by processing actual spaceborne SAR data.

关键词

距离多普勒算法条纹噪声频域滤波Burst工作模式

Keywords

Range Doppler algorithmstripe noisefrequency domain filteringburst mode

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