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動態(tài)分形粗糙海面散射的遮蔽效應(yīng)和多普勒譜研究

郭立新 任玉超 吳振森

郭立新, 任玉超, 吳振森. 動態(tài)分形粗糙海面散射的遮蔽效應(yīng)和多普勒譜研究[J]. 電子與信息學(xué)報(bào), 2005, 27(10): 1666-1670.
引用本文: 郭立新, 任玉超, 吳振森. 動態(tài)分形粗糙海面散射的遮蔽效應(yīng)和多普勒譜研究[J]. 電子與信息學(xué)報(bào), 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.

動態(tài)分形粗糙海面散射的遮蔽效應(yīng)和多普勒譜研究

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

  • 摘要: 利用粗糙面電磁散射中的基爾霍夫近似,結(jié)合粗糙面遮蔽函數(shù)和分形粗糙海面特征函數(shù)的計(jì)算,導(dǎo)出了考慮遮蔽效應(yīng)情況下導(dǎo)體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對遮蔽效應(yīng)的影響。比較了毫米波入射時(shí)高斯粗糙面和分形粗糙海面的散射截面分布情況。分析了不同分維下分形海面雙站散射截面的角分布情況。詳細(xì)討論了不同入射角和不同分維及遮蔽效應(yīng)對分形海面散射回波多普勒譜的影響。
  • 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, 吳振森. 考慮海譜分布的動態(tài)分形海面的電磁散射. 電子學(xué)報(bào), 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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出版歷程
  • 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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