中国激光, 2009, 36 (s2): 194, 网络出版: 2009-12-30   

近海红外探测环境特征参数统计分析

Statistical Study of Infrared Detection Environment Characteristic Parameters in Littoral Areas
作者单位
1 海军大连舰艇学院 军事海洋系,辽宁 大连 116018
2 东海舰队司令部航保处,浙江 宁波 315000
摘要
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.

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.

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