近海红外探测环境特征参数统计分析

利用2002-2008年间在我国渤海葫芦岛、东海平潭岛、东山岛以及南海的永兴岛等海域开展的海上试验观测数据,通过Bulk通量算法与射线程序统计分析了特征高度、折射率结构常数(C2n)等物理量以及光电系统相关传播参数的累积概率特征。东山岛海域特征高度大于零的情况占到90%以上,高C2n的情况(C2n>10-14)出现概率约为50%,明显高于平潭岛、永兴岛,而葫芦岛试验中由于负折射导致的视距缩短大于4 km的概率接近50%。东山岛和葫芦岛受到较强的湍流影响,相干长度小于15 cm的概率分别为60%和40%。其统计结果和分析方法可为海上光电系统试验环境保障提供信息支持。

Abstract

By using trial observations data from Hulu island in Bohai,Pingtan island ,Dongshan island in East China Sea,Woody island in South China Sea during 2002-2008,physical parameters (characteristic refractive heights,refractive structure parameter values) as well as some relevant electro-optical system propagation parameters based on Bulk flux algorithm and ray tracing program are studied statistical in this paper. The accumulative probability of the positive characteristic refractive height in Dongshan island is above 90%,the percent of high refractive-index soructure parameter (C2n) values (C2n>10-14) is about 50%,which is higher than that in the Pingtan island and Woody island obviously. The cumulative probability of the optical horizon reduction greater than 4 km is close to 50% because of the subrefraction. Dongshan island and Hulu island are under the strong turbulence,the probability of the coherent length smaller than 15 cm is 60%,40% respectively. Its statistical result and the analysis method may provide the information for the marine electro-optical system test environment safeguard.

参考文献

[1] J. Claverie,Y. Hurtaud. Statistical study of EO propagation parameters in coastal areas[C]. SPIE,2003,4884:140-149

[2] 徐军. 红外图像中弱小目标检测技术研究[D].西安:西安电子科技大学,2001

Xu Jun. Research on the Detection of Small and Dim Targets in Infrared Images [D].Xi′an:Xian University of Science and Technology,2001

[3] 黄小毛,张永刚,王华等. 大气波导对雷达异常探测影响的评估与试验分析[J]. 电子学报,2006,34(4):723-725

Huang Xiaomao,Zhang Yonggang,Wang Hua et al.. Evaluation and experimental analysis of radar anomalous detection influenced by atmospheric ducts[J]. Acta Electronica Sinica,2006,34(4):723-725

[4] 焦林,张永刚. 大气波导条件下雷达电磁盲区的预报研究[J]. 西安电子科技大学学报,2007,34(6):989-995

Jiao Lin,Zhang Yonggang. Study of the shadow zone of the radar in the atmospheric duct[J]. J. Xidian University,2007,34(6):989-995

[5] 张建奇,方小平. 红外物理[M].西安:西安电子科技大学出版社,2004.126-183

Zhang Jianqi,Fang Xiaoping. Infrared Physics[M]. Xi′an:Xidian Uiversity Press,2004.126-183

[6] . H. Lehn,W. Friesen. Simulation of mirages[J]. Appl. Opt., 1992, 31: 1267-1273.

[7] 马晓珊,朱文越,饶瑞中. 测量大气折射率结构常数的大口径激光闪烁仪[J]. 中国激光,2008,35(6):898-902

Ma Xiaoshan,Zhu Wenyue,Rao Ruizhong. Large aperture laser scintillometer for measuring the refractive index structure constant of atmospheric turbulence[J]. Chinese J. Lasers,2008,35(6):898-902

[8] . W. Fairall,E. F. Bradley,D. P. Rogers et al.. Bulk parameterization of air-sea fluxes for tropical ocean-global atmosphere coupled-ocean atmosphere response experiment[J]. J. Geophys. Res., 1996, 101: 3747-3764.

[9] . Edlén. The refractive index of air[J]. Meteorol, 1966, 2: 71-80.

[10] . Optical refractive index of air:dependence on pressure,temperature and composition[J]. Appl. Opt., 1967, 6(1): 51-59.

[11] . J. Hill,R. S. Lawrence. Refractive index of water vapor in infrared windows[J]. Infrared Phys, 1986, 26(6): 371-376.

[12] . E. Ciddor. Refractive index of air:new equations for the visible and near infrared[J]. Appl. Opt., 1996, 35: 1566-1573.

[13] . L. Forand. Method to estimate infrared and radio-frequency synergy[J]. Opt. Eng., 2007, 46(12): 1-9.

[14] G. Kunz,E. Heemskerk,L. V. Eijk. Comparison of atmospheric refraction at radar and optical wavelengths[C]. SPIE,2005,5981:1-12

[15] 李云波,张永刚,王华等. 异常大气折射环境对红外与微波传输的影响[J]. 红外与激光工程,2008,37(s3):254-259

Li Yunbo,Zhang Yonggang,Wang Hua et al.. The influence of marine abnormal refraction environmental on infrared and microwave transmission[J]. Infrared and Laser Engineering,2008,37(s3):254-259

[16] . L. Davidson.Verification of the bulk method for calculating overwater optical turbulence[J]. Appl. Opt., 1981, 20(17): 2919-2924.

[17] 戴福山,李有宽. 利用气象要素估算海洋大气近地层光学湍流[J]. 光学学报,2007,27(2):191-196

Dai Fushan,Li Youkuan. Estimation of the optical turbulence in the marine atmospheric surface layer based on meteorological data[J]. Acta Optica Sinica,2007,27(2):191-196

[18] D. Dion. Refraction effects on EO system detection ranges in coastal environment[R]. Agard CP-567,1995

李云波, 张永刚, 吴世华, 姚忠山. 近海红外探测环境特征参数统计分析[J]. 中国激光, 2009, 36(s2): 194. Li Yunbo, Zhang Yonggang, Wu Shihua, Yao Zhongshan. Statistical Study of Infrared Detection Environment Characteristic Parameters in Littoral Areas[J]. Chinese Journal of Lasers, 2009, 36(s2): 194.

近海红外探测环境特征参数统计分析

关于本站 Cookie 的使用提示

全站搜索

近海红外探测环境特征参数统计分析

相关论文

相关资讯

关于本站 Cookie 的使用提示

全站搜索