红外, 2016, 37 (6): 30, 网络出版: 2016-09-12  

海水非温度分层条件下的舰船尾流红外探测可行性研究

Feasibility Study of Infrared Detection of Ship Wake in Non Temperature Stratified Seawater
陈翾 1,2,*林春生 2杨立 3
作者单位
1 中国人民解放军91336部队, 河北 秦皇岛 066326
2 海军工程大学兵器工程系, 湖北 武汉 430033
3 海军工程大学动力工程学院, 湖北 武汉 430033
摘要
在海面行驶时,舰船后面会形成一条清晰可辨且持续时间很长的尾流区, 其长度可达数千米。利用红外成像技术进行尾流探测已成为世界上各大** 强国重点发展的一项**侦察技术。首先,从空间分辨率和温度分辨率两方面考虑,推导出了舰 船尾流的红外探测条件。然后基于红外测温原理,推导出了海水非温度分层条件下舰船尾 流与周边海水之间的等效温差的表达式。最后,以阀值信噪比和目标等效条带数为基础,得出了 舰船尾流的红外探测概率。研究结果表明,在海水非温度分层条件下,只有当探测天顶角较大时, 才能以一定概率探测到尾流;而且随着天顶角的增大,探测概率逐渐提高。
Abstract
When a ship sails on the sea, a clear wake with a very long lasting time will be formed behind it. The length of the wake can extend to several thousand meters. The detection of ship wakes by infrared imaging has been a military reconnaissance technology to be developed prior in each military power in the world. Firstly, in view of temperature resolution and spatial resolution, the infrared detection condition of ship wakes is derived. Secondly, on the basis of infrared temperature measurement principle, the expression of equivalent temperature difference between the ship wake and the sea surface in non temperature stratified seawater is obtained. Finally, on the basis of the threshold signal-to-noise ratio and equivalent band number, the infrared detection probability of the ship wake is derived. The research results show that the ship wake can be detected in non temperature stratified seawater only when the detrue cmtection zenith angle is larger. Moreover, the detection probability will increase with the increase of detection zenith angle.

陈翾, 林春生, 杨立. 海水非温度分层条件下的舰船尾流红外探测可行性研究[J]. 红外, 2016, 37(6): 30. CHENXuan, LIN Chun-sheng, YANG Li. Feasibility Study of Infrared Detection of Ship Wake in Non Temperature Stratified Seawater[J]. INFRARED, 2016, 37(6): 30.

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!