干涉合成孔徑雷達相位濾波的一種新算法
A new phase noise filtering algorithm of interferometric synthetic aperture radar
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摘要: 該文著重就目前國際上研究的一個熱點干涉合成孔徑雷達成像中的相位濾波問題進行了討論。提出了一種新的相應濾波方法,可適應干涉條紋方向的變化,十分適用于對干涉條紋密集的區(qū)域進行濾波。通過對德國X-SAR數(shù)據(jù)的處理檢驗該方法的效果,結果相當理想。此外,這種方法實現(xiàn)起來相當簡單。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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