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激光距离多普勒成像技术在航天和国防应用领域受到极大的关注. 文章建立了锥柱复合目标的激光距离多普勒像分析模型, 包括底面的贡献. 该模型能分析锥柱复合目标的几何参量、表面粗糙度、姿态、 角速度和脉冲宽度等因素对激光距离多普勒像的影响, 并能退化到圆柱和圆锥的激光距离多普勒像分析模型, 也能退化到平面波下的多普勒谱分析模型. 分析了几何参量和姿态对距离多普勒像的影响. 计算结果表明, 锥柱复合目标距离多普勒像能体现出目标的几何形状和姿态信息. 理论和测量相结合, 该分析模型能用来进行圆柱、圆锥及锥柱复合目标物理和几何参量的识别, 其解析表达式对于多普勒速度计和激光雷达应用有着重要的意义.The technique of laser range-Doppler image has been intimately noticed by aerospace and national defense circles. A analytical model of laser range-Doppler image of cone-cylinder combination is proposed in this paper. The analytical model includes the contribution of disk base. The analytical model can provide the effects of geometry parameters, the roughness of the surface, attitude, and pulse duration on laser range-Doppler image. This analytical model can reduce into the analytical model of range-Doppler image of cone and cylinder. This analytical model can reduce into the analytical model of Doppler spectra for plane waves. The influences of geometry parameters, and attitude are analyzed numerically by using the analytical model. The results indicate that the laser range-Doppler image of cone-cylinder combination can show the information about geometrical shape and attitude of target. Combining the theory and measurements, the analytical model can be used for indentifying physical parameters and geometrical parameters of cylinders, cones and cone-cylinder combination. This analytical solution is of significance for the laser Doppler velocimetry and ladar applications.
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Keywords:
- Doppler /
- laser imaging /
- rough interface scattering /
- laser applications
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[1] Gesell L H, Feinleib R E, Turpin T M 1990 In Advances in Optical Information Processing IV edited by Pape D R (SPIE) p189
[2] Master L T, Duncan M B M B D 1995 IEEE 129
[3] Youmans D G, Robertson R 1997 A640923
[4] Jenjins R M, Food R, Devereuex R W J, Blockley A F, Quarrel J 2000 In Laser Weapons Technology, edited by Steiner T D, Merritt P H (SPIE) p108
[5] Minden M L, O'Meara T R 1990 N00014-85-C-0534 (Hughes Research Laboratorles, Californla)
[6] Kachelmyer A L, Nordquist D P 1991 In Laser Radar VI (SPIE, Los Angeles, CA, USA) p184
[7] Yura H T, Hanson S G, Lading L 1995 J. Opt. Soc. Am. A 12 2040
[8] Bankman I N 1999 In Targets and Backgrounds: Characterization and Representation V (Orlando, FL, USA: SPIE) p133
[9] Yang X H, Chen Y Q, Cai P P, Lu J J, Wang R J 1999 Acta Phys. Sin. 48 834 (in Chinese) [杨晓华, 陈扬骎, 蔡佩佩, 卢晶晶, 王荣军 1999 48 834]
[10] Mendel M J, Vantoi V, Riva C E, Petrig B L 1993 J. Opt. Soc. Am. A Optics Image Science and Vision 10 1663
[11] Hanson S G, Lading L 1996 In Optical Velocimetry, edited by Pluta M, Jabczynsk J K, Szyjer M (SPIE) p81
[12] Briers J D 1996 J. Opt. Soc. Am. A Optics Image Science and Vision 13 345
[13] Arik E G 1991 SPIE 1584 202
[14] Pfister T, Günther P, Büttner L, Czarske J 2007 In Optical Measurement Systems for Industrial Inspection V (SPIE) p66163S)
[15] Guo L X, Wang Y H, Wu Z S 2005 Acta Phys. Sin. 54 96 (in Chinese) [郭立新, 王运华, 吴振森 2005 54 96]
[16] Guo L X, Wang R, Wang Y H, Wu Z S 2008 Acta Phys. Sin. 57 3464 (in Chinese) [郭立新, 王蕊, 王运华, 吴振森 2008 57 3464]
[17] Hu X J, Li R B, Shen H S, He X C, Deng W, Luo L X 2004 Acta Phys. Sin. 53 2014 (in Chinese) [胡晓君, 李荣斌, 沈荷生, 何贤昶, 邓文, 罗里熊 2004 53 2014]
[18] Hao X P, Wang B Y, Yu R S, Wei L 2007 Acta Phys. Sin. 56 6543 (in Chinese) [郝小鹏, 王宝义, 于润升, 魏龙 2007 56 6543]
[19] Ma H, Bu F G, Qiao H X, Tong D M, Fan X J 2008 Acta Phys. Sin. 57 206 (in Chinese) [马慧, 卜凡阁, 乔红霞, 仝殿民, 樊锡君 2008 57 206]
[20] Shi Y, Gao J Y 2000 Chin. Phys. 9 436
[21] Shi Y, WU J H, Gao J Y 2001Chin. Phys. 10 300
[22] Xu W H, Gao J Y 2005 Chin. Phys. 14 2496
[23] Wang Y H, Yang H J, Du Z J, Zhang T C, Wang J M 2006 Chin. Phys. 15 138
[24] Ma H, Tian S F, Tan X, Tong D M, Fan X J 2007 Chin. Phys. 16 2973
[25] Ma H, Tan X, Tian S F, Tong D M, Fan X J 2007 Chin. Phys. 16 2400
[26] Lu R J, Qin Y P, Zhang F W 2007 Chin. Phys. 16 1806
[27] Zhang Q, Yeo T, Tan H, Luo Y 2008 IEEE Trans. Geosci. Remote Sens. 46 291
[28] Gong Y J, Wu Z S 2009 Acta Phys. Sin. 58 6227 (in Chinese) [宫彦军, 吴振森 2009 58 6227]
[29] Li Y H, Wu Z S, Gong Y J 2010 Nucl. Instrum. Methods Phys. Res. A 637 S149
[30] Li Y, Wu Z, Gong Y 2010 SPIE 7850 78501J
[31] Li Y H, Wu Z S 2010 Opt. Express 18 16788
[32] Gong Y J, Wu Z S, Wu J J 2009 Chin. Phys. Lett. 26 024213
[33] Gong Y J, Wu Z S, Wang M J, Cao Y H 2010 Opt. Lasers Eng. 48 107
[34] Bankman I 2000 J. Opt. Soc. Am. A 17 465
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