光学学报, 2014, 34 (12): 1211001, 网络出版: 2014-11-07   

基于快速物理光学法的太赫兹目标RCS计算

RCS Simulation of Targets in THz Band Based on Fast Physical Optics Algorithm
作者单位
北京航空航天大学电子信息工程学院, 北京 100191
摘要
研究了一种基于快速物理光学法(FPO)计算太赫兹(THz)波段目标雷达散射截面(RCS)的方法。将目标散射体分解成若干个子区域,经相位补偿后计算出每个子区域的散射特性,经过插值、相位恢复和聚合得到整个散射体的散射特性,并对FPO在THz波段的应用进行了讨论。仿真结果表明:利用FPO法计算THz目标的RCS,能够在保证准确性的前提下,大大提高计算效率,节省计算时间。该研究对于THz波段的快速目标识别和成像有着重要的意义。
Abstract
The method for the calculation of radar cross section (RCS) of targets in terahertz (THz) band based on fast physical optics (FPO) algorithm is presented. The scatterer is divided into subdomains and the scattering characteristics of each subdomain are computed after the phase compensation. Through interpolation, phase correction and aggregation, the scattering characteristic of the whole scattering body is abtained, and the applications of FPO in THz band are discussed. Simulation results show that the targets′ RCS calculation by FPO in THz band can greatly improve the computational efficiency and save computing time in the premise of ensuring the accuracy. This research has an important significance for fast target recognition and imaging in THz band.
参考文献

[1] 刘盛纲. 太赫兹科学技术的新发展[J]. 中国基础科学, 2006, 8(1): 7-12.

    Liu Shenggang. Recent development of terahertz science and technology [J]. Chinese Basic Science, 2006, 8(1): 7-12.

[2] 姚建铨, 路洋, 张百钢, 等. THz辐射的研究和应用新进展[J]. 光电子·激光, 2005, 16(4): 503-510.

    Yao Jianquan, Lu Yang, Zhang Baigang, et al.. New research progress of THz radiation [J]. Journal of Optoelectronics·Laser, 2005, 16(4): 503-510.

[3] 姚建铨, 迟楠, 杨鹏飞, 等. 太赫兹通信技术的研究与展望[J]. 中国激光, 2009, 36(9): 2213-2233.

    Yao Jianquan, Chi Nan, Yang Pengfei, et al.. Study and outlook of terahertz communication technology [J]. Chinese J Lasers, 2009, 36(9): 2213-2233.

[4] 李琦, 薛凯, 李慧, 等. 太赫兹雷达散射截面测量研究进展[J]. 激光与光电子学进展, 2012, 49(6): 060001.

    Li Qi, Xue Kai, Li Hui, et al.. Advances in research of terahertz radar cross section measurements [J]. Laser & Optoelectronics Progress, 2012, 49(6): 060001.

[5] 王瑞君, 王宏强, 庄钊文, 等. 太赫兹雷达技术研究进展[J]. 激光与光电子学进展, 2013, 50(4): 040001.

    Wang Ruijun, Wang Hongqiang, Zhuang Zhaowen, et al.. Research progress of terahertz radar technology [J]. Laser & Optoelectronics Progress, 2013, 50(4): 040001.

[6] X J Zhong, T J Cui , Z Li, et al.. Terahertz-wave scattering by perfectly electrical conducting objects [J]. J Electromagn Waves and Appl, 2007, 21(15): 2331-2340.

[7] Krzysztof Iwaszczuk, Henning Heiselberg, Peter Uhd Jepsen. Terahertz radar cross section measurements [J]. Opt Express, 2010, 18(25): 26399-26408.

[8] C Jansena, N Krumbholza, R Geiseb, et al.. Alignment and illumination issues in scaled THz RCS measurements [C]. 34th International Conference on Infrared, Millimeter, and Terahertz Waves, 2009. 1-2.

[9] 华厚强, 江月松, 苏林, 等. 自由空间复杂导体目标的太赫兹RCS高频分析方法[J]. 红外与激光工程, 2014, 43(3): 687-693.

    Hua Houqiang, Jiang Yuesong, Su Lin, et al.. High-frequency analysis on THz RCS of complex conductive targets in free space [J]. Infrared and Laser Engineering, 2014, 43(3): 687-693.

[10] 李慧宇, 李琦, 佘剑雨, 等. 高斯光束对二维导体平板太赫兹雷达散射截面影响[J]. 中国激光, 2013, 40(7): 0711001.

    Li Huiyu, Li Qi, She Jianyu, et al.. Influence of Gaussian beam on terahertz radar cross section of a conducting flat plate in two dimension [J]. Chinese J Lasers, 2013, 40(7): 0711001.

[11] 李慧宇, 李琦, 夏志伟, 等. 高斯光圆柱太赫兹雷达散射截面的影响[J]. 中国激光, 2012, 39(s1): s111002.

    Li Huiyu, Li Qi, Xia Zhiwei, et al.. Influence of Gaussian beam on comductor cylinder terahertz radar cross section [J]. Chinese J Lasers, 2012, 39(s1): s111002.

[12] Amir Boag. A fast physical optics (FPO) algorithm for high frequency scattering [J]. IEEE Trans Antennas Propag, 2004, 52(1): 197-204.

[13] Amir Boag, Michielssen E. A fast physical optics(FPO) algorithm for double-bounce scattering [J]. IEEE Trans Antennas Propag, 2004, 52(1): 205-212.

[14] 彭五四. 电大复杂目标高频电磁散射的快速分析[D]. 南京: 南京理工大学, 2013.

    Peng Wusi. Fast Analysis of Electromagnetic Scattering of Electrically Large Complex Target in High Frequency [D]. Nanjing: Nanjing University of Science and Technology, 2013.

[15] 何国瑜, 卢才成, 洪家才, 等. 电磁散射的计算和测量[M]. 北京: 北京航空航天大学出版社, 2006. 19-24.

    He Guoyu, Lu Caicheng, Hong Jiacai, et al.. Calculation and Measurement of Electromagnetic Scattering [M]. Beijing: Beihang University Press, 2006. 19-24.

[16] J T Johnson, K F Warnick, Xu Peng. On the geometrical optics (Hagforsplaw) and physical op tics app roximations for scattering from exponentially correlated surfaces [J]. Geoscience and Remote Sensing. IEEE Transactions, 2007, 45(8): 2619-2629.

[17] W B Gordon. Far-field approximation to the Kirchhoff-Helmholtz representations of scattered field [J]. IEEE Trans AP, 1975, 23(4): 590-592.

[18] M Abramowitz, I A Stegun. Handbook of Mathematical Functions [M]. New York: Dover, 1965.

[19] 黄培康, 殷红成, 徐小剑. 雷达目标特性[M]. 北京: 电子工业出版社, 2005.

    Huang Peikang, Yin Hongcheng, Xu Xiaojian. Radar Target Characteristics [M]. Beijing: Publishing House of Electronics Industry, 2005.

[20] J A Stratton. Electromagnetic Theory [M]. New York: MeGraw-Hill Book Co, 1941. 88-99.

[21] 夏应清, 杨河林, 鲁述, 等. 超电大复杂目标RCS缩比模型预估方法[J]. 微波学报, 2003, 19(1): 8-11.

    Xia Yingqing, Yang Helin, Lu Shu. Prediction of RCS for extremely large electric size target by using scaling model [J]. Journal of Microwaves, 2003, 19(1): 8-11.

[22] T M Goycttc, J C Dickinson, W J Gorvcatt, et al.. X-band ISAR imagery of scale-model tactical targets using a wide bandwidth 350 GHz compact range [C]. SPIE, 2001, 5427: 227-236.

[23] 聂在平, 方大纲. 目标与环境电磁散射特性建模—基础篇[M]. 北京: 国防工业出版社, 2009.

    Nie Zaiping, Fang Dagang. Objectives and Environmental Electromagnetic Scattering Modeling—The Basics [M]. Beijing: National Defense Industry Press, 2009.

[24] Yuyuan An, Daoxiang Wang, Rushan Chen. Improved multilevel physical optics algorithm for fast computation of monostatic radar cross section [J]. IET Microwaves, Antennas & Propagation, 2014, 8(2): 93-98.

江月松, 张志国, 华厚强. 基于快速物理光学法的太赫兹目标RCS计算[J]. 光学学报, 2014, 34(12): 1211001. Jiang Yuesong, Zhang Zhiguo, Hua Houqiang. RCS Simulation of Targets in THz Band Based on Fast Physical Optics Algorithm[J]. Acta Optica Sinica, 2014, 34(12): 1211001.

本文已被 3 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!