干涉合成孔径雷达相位滤波的一种新算法
A new phase noise filtering algorithm of interferometric synthetic aperture radar
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摘要: 该文着重就目前国际上研究的一个热点干涉合成孔径雷达成像中的相位滤波问题进行了讨论。提出了一种新的相应滤波方法,可适应干涉条纹方向的变化,十分适用于对干涉条纹密集的区域进行滤波。通过对德国X-SAR数据的处理检验该方法的效果,结果相当理想。此外,这种方法实现起来相当简单。Abstract: This paper discusses the phase noise filtering problem for Synthetic Aperture Radar (SAR) interferometric phase images. A new noise filtering algorithm, which can adapt to the direction of fringes, is developed. This algorithm is useful especially for tightly packed fringes. The algorithm can be carried out easily. Using SIR-C/X-SAR repeat-pass generated interferograms, the effectiveness of this filter is tested.
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L.C. Grapham, Synthetic interferometric radar for topographic mapping, Proc.[J]. IEEE.1974,62:763-[2]Joe Zhang, Yi Guo, Interferometric synthetic aperture radar technology, radar remote sensing group, Dept. of Electrical Engineering, University of British Columbia, Technical Report JZ-96-1, Nov. 20, 1996.[3]Jong-Sen lee, K. P. Papathanassiou et al., A new technique for noise filtering of interferometric phase images, IEEE Trans. on Geosci. Remote Sensing, 1998, 36(5), 1456-1465.[4]G. Fornaro, G. Franceschetti et al., Robust phase-unwrapping techniques: A conparison, J. Opt.Soc. Am. A, 1996, 13(12), 2355-2366.[5]J.-S. Lee et al., Intensity and phase statistics of multilook polarimetric and interferometric imagery, IEEE Trans. on Geosci. Remote Sensing, 1994, 32(9), 1017-1028. -
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