doi:

DOI: 10.3724/SP.J.1010.2013.00514

Journal of Infrared and Millimeter Waves (红外与毫米波学报) 2013/32:6 PP.514-518

Synthetic aperture ladar imaging with one-way far-field diffraction


Abstract:
Alaboratory SAL setup produced well-focused SAL images using laser illumination with one-way far-field diffraction.Using 1550 nm fiber laser,the SAL can focus images from target distance of about 2.4 m with azimuth resolution of about 560 μm and range resolution of about 170 μm.High-resolution SAL images are generated by straightforwardly following standard SAL image formation theory,without the aid of phase gradient autofocus (PGA) technique.Detailed results show a typical two-step SAL focusing process and a high resolution image.

Key words:synthetic aperture ladar,laboratory demonstration,f ar-field diffraction

ReleaseDate:2015-05-04 09:28:16



[1] Karr T J.Synthetic aperture ladar for planetary sensing [J].SPIE, 2003, 5151:44-52.

[2] DENG Yun-Kai, ZHAO Feng-Jun, WANG Yu.Brief analysis on the development and application of spaceborne SAR [J].Journal of Radars (邓云凯, 赵凤军, 王宇.星载SAR 技术的发展趋势及其应用浅析, 雷达学报), 2012, 1(1):1-10.

[3] Ricklin J C, Tomlinson P G.Active imaging at DARPA [J].SPIE.2005, 5895:589505-1.

[4] Lewis T S, Hutchins H S.A synthetic aperture at optical frequencies [J].Proc.IEEE (letters), 1970, 58:578-588.

[5] Lewis T S, Hutchins H S.A synthetic aperture at 10.6 Microns [J].Proc.IEEE (letters), 1970, 58:1781-1782.

[6] Aleksoff C C, Christensen C R.Holographic Doppler imaging of rotating objects [J].Appl.Opt., 1975, 14(1):134-141.

[7] Aleksoff C C.Synthetic interferometric imaging technique for moving objects [J].Appl.Opt., 1976, 15(8):1923-1929.

[8] Aleksoff C C, Accetta J S, Tai L M, et al.Synthetic aperture imaging with a pulsed CO2 TEAlaser [J].SPIE, 1987, 783:29-40.

[9] Marcus S, Collella B D, Green Jr T J.Solid-state laser synthetic aperture radar [J].Appl.Opt., 1994, 33(6):960-964.

[10] Green Jr T J, Marcus S, Colella B D.Synthetic-aperturerader imaging with a solid-state laser [J].Appl.Opt., 1995, 34(30):6941-6949.

[11] Yoshikado S, Aruga T.Short-range verification experiment of a trial one-dimensional synthetic aperture infrared laser radar operated in the 10μm band [J].Appl.Opt., 2000, 39(9):1421-1425.

[12] Bashkansky M, Lucke R L, Funk E, et al.Two-dimensional synthetic aperture imaging in the optical domain [J].Opt.Lett., 2002, 27(22):1983-1985.

[13] Buell W F, Marechal N J, Buck J R, et al.Synthetic-aperture imaging ladar [J].Crosslink (The Aerospace Corporation magazine of Advances Technology), 2004, 5(2):45-49.

[14] Beck S M, Buck J R, Buell W F, et al.Synthetic aperture imaging ladar:laboratory demonstration and signal processing [J].Appl.Opt., 2005, 44(35):7621-7629.

[15] Dierking M, Schumm B, Ricklin J C, et al.Synthetic aperture LADAR for tactial imaging overview[J].Proc.14th CLRC, Session 2007, 9.

[16] Buck J R, Krause B W, Malm A I R, et al.Synthetic aperture imaging at optical wavelengths [C].OSA/CLEO/IQEC, 2009.

[17] Krause B W, Buck J, Ryan C, et al.Synthetic aperture ladar flight demonstration [C].OSA/CLEO/IQEC, 2011.

[18] PENG Ren-Jun, WU Jian, YANG Chun-Ping, et al.Synthethizing aperture in optics with interferometric imaging [J].Acta Optica Sinica (彭仁军, 吴健, 杨春平, 等.用干涉法实现光学合成孔径技术.光学学报), 2002, 22(3):355-359.

[19] GUO Liang, XING Meng-Dao, ZHANG Long, et al.Research on indoor experimentation of range SAL im aging system [J].Sci China Ser E-Tech Sci, (郭亮, 邢孟道, 张龙, 等.室内距离向合成孔径激光雷达成像的实验研究, 中国科学(E 辑):技术科学), 2009, 39(10):1678-1684.

[20] ZHOU Yu, XU Nan, LUAN Zhu, et al.2D imaging experiment of a 2D target in a laboratory-scale synthetic aperture imaging ladar [J].Acta Optica Sinica (周煜, 许楠, 栾竹, 等.尺度缩小合成孔径激光成像雷达的二维成像实验.光学学报), 2009, 29(7):2030-2032.

[21] LIU Li-Ren, ZHOU Yu, ZHI Ya-Nan, et al.Alarge aperture synthetic aperture imaging ladar demonstrator and its verification in laboratory space [J].Acta Optica Sinica(刘立人, 周煜, 职亚楠, 等.大口径合成孔径激光成像雷达演示样机及其实验验证, 光学学报), 2011, 31(9):0900112-1.

[22] HONG Guang-Lie, WANG Jian-Yu, MENG Zhao-Hua, et al.Chirped amplitude modulation and range dimension processing of near infrared synthetic aperture ladar [J].J.Infrared.Millim.Waves (洪光烈, 王建宇, 孟昭华, 等.Chirp 强度调制与近红外激光合成孔径雷达距离向处理.红外与毫米波学报), 2009, 28(3):229-234.

[23] LIU Guo-Guo, WU Jin, ZHU Bing-Qi, et al.Nonlinear degradation and compensation on range resolution in synthetic aperture ladar experiment [J].Laser & Infrared (刘国国, 吴谨, 朱炳祺, 等.合成孔径激光雷达距离像分辨率非线性恶化与补偿, 激光与红外), 2009, 39(9):934-938.

[24] ZHU Bing-Qi, WU Jin, ZHAO Mei-Jing, et al.Influence of optical axis on range imaging in stripmap synthetic aperture ladar [J].Laser & Optoelectronics Progress (朱炳祺, 吴谨, 赵美静, 等.条带式合成孔径激光雷达光轴影响距离成像研究, 激光与光电子学进展), 2010, 47(11):111102-1.

[25] Eichel P H, Wahl D E, Ghiglia D C, et al.Phase gradient autofocus-a robust tool for high resolution SAR phase correction [J].IEEE Trans.on Aerospace and Electronic System, 1994, 30(3):827-835.

[26] LIU Li-Ren.Synthetic aperture (IV):Unified operation mode and two-dimensional data collection equation [J].Acta Optica Sinica (刘立人.合成孔径激光成像雷达(IV):统一工作模式和二维数据收集方程.光学学报), 2009, 29(1):1-6.

[27] WU Jin.Matched filter in synthetic aperture ladar imaging [J].Acta Optica Sinica (吴谨.合成孔径激光雷达成像之匹配滤波器.光学学报), 2010, 30(7):2123-29.

[28] ZHAO Mei-Jing, WU Jin, ZHU Bing-Qi.Mathematical simulation on stripmap mode synthetic aperture ladar imaging with random phase errors [J].Infrared and Laser Engineering (赵美静, 吴谨, 朱炳祺.随机相位误差影响条带模式合成孔径激光雷达成像的数学模拟, 红外与激光工程), 2011, 40(12):2418-2423.