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动态分形粗糙海面散射的遮蔽效应和多普勒谱研究

郭立新 任玉超 吴振森

郭立新, 任玉超, 吴振森. 动态分形粗糙海面散射的遮蔽效应和多普勒谱研究[J]. 电子与信息学报, 2005, 27(10): 1666-1670.
引用本文: 郭立新, 任玉超, 吴振森. 动态分形粗糙海面散射的遮蔽效应和多普勒谱研究[J]. 电子与信息学报, 2005, 27(10): 1666-1670.
Guo Li-xin, Ren Yu-chao, Wu Zhen-sen. Study on the Shadowing Effect and Doppler Spectra for the Scattering from the Time-Varying Fractal Rough Sea Surface[J]. Journal of Electronics & Information Technology, 2005, 27(10): 1666-1670.
Citation: Guo Li-xin, Ren Yu-chao, Wu Zhen-sen. Study on the Shadowing Effect and Doppler Spectra for the Scattering from the Time-Varying Fractal Rough Sea Surface[J]. Journal of Electronics & Information Technology, 2005, 27(10): 1666-1670.

动态分形粗糙海面散射的遮蔽效应和多普勒谱研究

Study on the Shadowing Effect and Doppler Spectra for the Scattering from the Time-Varying Fractal Rough Sea Surface

  • 摘要: 利用粗糙面电磁散射中的基尔霍夫近似,结合粗糙面遮蔽函数和分形粗糙海面特征函数的计算,导出了考虑遮蔽效应情况下导体分形粗糙海面散射截面的近似公式。研究了海面不同均方根斜率对遮蔽效应的影响。比较了毫米波入射时高斯粗糙面和分形粗糙海面的散射截面分布情况。分析了不同分维下分形海面双站散射截面的角分布情况。详细讨论了不同入射角和不同分维及遮蔽效应对分形海面散射回波多普勒谱的影响。
  • Ulaby F T, Moore R K, Fung A K. Microwave Remote Sensing. Vol.II, Reading, MA: Addision -Wesbey Publishing, 1982, chap.12.[2]Lin N. Wave scattering from fractal surface[J].J. of Modern Opt.1995, 42(1):225-241[3]Berizzi F, Dalle-Mese E. Fractal analysis of the signal scattered from the sea surface[J].IEEE Trans. on Antennas Propag.1999, 47(2):324-338[4]Ranceschetti G, Iodice A. Scattering from natural rough surface modeled by fractional Brownian motion two-dimensional[5]processes. IEEE Trans[J].on Antennas Propag.1999, 47(9):1405-1415[6]Guo Lixin, Wu Zhensen. Fractal characteristics investigation on light scattering from two dimensional rough surface[J].Int. J. Infrared and Mill. Wave.2000, 21(12):2099-2106[7]Donnell K A, Mendez E R. Experimental study of scattering from characterized random surfaces[J].J. Opt. Soc. Am.1987, 4(7):1194-1205[8]Bourlier C, Berginc G, Saillard J. One and two-dimension shadowing functions for height and slope stationary uncorrelated surface in the monostatic and bistatic configuration[J].IEEE Trans. on Antennas Propagat.2002, 50(2):312-324[9]Bourlier C, Saillard J, Berginc G. The shadowing function. Prog. Electromagn. Res., 2000, 27: 225-287.[10]郭立新, 吴振森. 考虑海谱分布的动态分形海面的电磁散射. 电子学报, 2001, 29(9): 1287-1289.[11]Thorsos E I. Acoustic scattering from a Pierson -Moskowitz sea surface[J].J. Acoust. Soc. Am.1990, 88(1):335-349[12]Bourlier C, Berginc G, Saillard J. Bistatic scattering coefficient from one- and two- dimensional randomly rough surface using the stationary phase and scalar random approximation with shadowing effect: comparisons with experiments and application to the sea surface[J].Waves in Random Media.2001, 11(1):119-147[13]Zavorotny V U, Voronovic A G. Two-scale model and ocean radar Doppler spectra at moderate and low-grazing angles. IEEE Trans. on Antennas Propagat., 1998, 36(1): 84-92.
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出版历程
  • 收稿日期:  2004-04-21
  • 修回日期:  2004-08-23
  • 刊出日期:  2005-10-19

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