摘要
研究了水下航行体红外隐身性等问题,提出了一种可对水下航行体热尾流进行数值预报的方法。在已建立了水下热尾流数学模型及海面热尾流红外辐射大气传输模型的基础上,采用几何投影的方法,确定机载红外成像器件焦平面上各个探测像元所对应的海面辐射区域,进而计算出探测器焦平面上每个探测像元所接收到的红外辐射能量,最后根据每个探测像元所接收到的红外辐射能量绘制伪彩色红外图像。按此方法在WindowXP平台上选用VC++6.0结合FLUENT及MODTRAN等专业软件,建立数据库,编写了仿真程序,可以对水下航行体的热尾流进行数值预报。
The thermal wake of submarine can be detected by airborne infrared detector from sea level and demonstrated by infrared image. The formation process of the chart is divided into three parts for discussion. The methods are presented for stimulating and calculating the wake drifting of submarine, the atmospheric transmission of infrared radiation from thermal wake, and the thermal imaging process of infrared-detector on aerial detecting platform. Then, by applying these methods and in- tegrating FLUENT, MODTRAN and other specialty software, with VC＋＋6.0,a stimulating pro- gram was worked out, which can report the value of nuclear submarine＇s thermal wake.
出处
《海军工程大学学报》
CAS
北大核心
2007年第6期90-93,共4页
Journal of Naval University of Engineering
关键词
光学
红外探潜
热尾流
仿真
optics
infrared submarine-detection
thermal wake
simulation
